吉林地区麦后复种饲用油菜与燕麦混播效应研究

doi:10.11686/cyxb2020551

摘要/Abstract

摘要：

旨在探讨适合吉林地区麦后复种饲用油菜与燕麦混合播种方案。试验以单播油菜（15 kg·hm^-2）和燕麦（220 kg·hm^-2）为对照组，按照播种量占单独播种量50%、60%、70%、80%、90%、100%的比例进行组合混播，以A~F顺序标记燕麦播种率，以1~6顺序标记油菜播种率，设定3次重复，共计108个试验小区。播种后分别在油菜抽薹期、盛花期、结荚期取样，对作物的生产性能进行评价，并采用灰色系统理论对结果进行分析。结果表明：抽薹期试验组干草产量范围是3999.89~5367.28 kg DM·hm^-2，粗蛋白质含量范围是10.16%~13.99%，中性洗涤纤维含量范围是49.88%~64.51%，酸性洗涤纤维含量范围是36.88%~41.52%。盛花期试验组干草产量范围是5102.35~6453.52 kg DM·hm^-2，粗蛋白质含量范围是11.28%~16.01%，中性洗涤纤维含量范围是57.99%~69.37%，酸性洗涤纤维含量范围是33.88%~48.80%。结荚期试验组干草产量范围是5737.16~6988.16 kg DM·hm^-2，粗蛋白质含量范围是9.25%~13.12%，中性洗涤纤维含量范围是57.10%~68.88%，酸性洗涤纤维含量范围是32.99%~41.01%。表明混播处理C₁在油菜抽薹期和盛花期的综合评价最高，干草产量分别为5281.23及6152.52 kg DM·hm^-2。混播处理C₂在结荚期综合评价最优，干草产量为6988.16 kg DM·hm^-2。

关键词: 饲用油菜, 燕麦, 混合播种模式

Abstract:

This research explored multiple cropping planting options when following wheat with mixed cropping of forage rape and oats in the Jilin area of northeast China. The experiment comprised two control treatments and 36 mixed-cropped treatments. The control treatments were forage rape sown alone at 15 kg·ha^-1 and oats sown alone at 220 kg·ha^-1. The mixed-cropped treatments were a factorial combination of forage rape and oats sown at 50%， 60%， 70%， 80%， 90% or 100% of control rates， designated A to F， respectively， for variation in sowing rate of oats， and subscript 1 to 6， respectively， for variation in sowing rate of forage rape. There were three replicates making 108 plots in total. Samplings were conducted at bolting， full bloom， and pod-set growth stages to evaluate crop performance， and results were analyzed according to Grey System theory. It was found that at bolting stage， the hay yield of the experimental crops ranged from 3999.89 kg DM·ha^-1 to 5367.28 kg DM·ha^-1， the crude protein content ranged from 10.16% to 13.99%， the content of neutral detergent fiber ranged from 49.88% to 64.51%， and the content of acid detergent fiber ranged from 36.88% to 41.52%. At full bloom stage， the hay yield of the experimental crops ranged from 5102.35 kg DM·ha^-1 to 6453.52 kg DM·ha^-1， the crude protein content ranged from 11.28% to 16.01%， the neutral detergent fiber content ranged from 57.99% to 69.37%， and the acid detergent fiber content ranged from 33.88% to 48.80%. At pod setting stage， the hay yield of the experimental crops ranged from 5737.16 kg DM·ha^-1 to 6988.16 kg DM·ha^-1， the crude protein content ranged from 9.25% to 13.12%， the content of neutral detergent fiber ranged from 57.10% to 68.88%， and the content of acid detergent fiber ranged from 32.99% to 41.01%. As determined by multivariate analysis， for earlier harvest， the C₁ treatment （forage rape 7.5 kg·ha^-1， oats 154 kg·ha^-1） was optimal and had forage yields of 5281.23 kg DM·ha^-1 and 6152.52 kg DM·ha^-1 at the bolting and full flowering growth stages， respectively； for later harvest the C₂ treatment （forage rape 9 kg·ha^-1， oats 154 kg·ha^-1） was the best and the forage yield was 6988.16 kg DM·ha^-1 at the pod-set growth stage.

Key words: forage rape, oat, mixed cropping

袁英良, 唐丹, 鲁英, 冉桂霞, 郭艳芹. 吉林地区麦后复种饲用油菜与燕麦混播效应研究[J]. 草业学报, 2021, 30(7): 167-178.

Ying-liang YUAN, Dan TANG, Ying LU, Gui-xia RAN, Yan-qin GUO. An investigation of multiple crop planting options when following wheat with mixed-cropped forage rape and oats in the Jilin area of northeast China[J]. Acta Prataculturae Sinica, 2021, 30(7): 167-178.

图/表 6

参考文献 42

1	Shen F， Hao R B， Yin L J， et al. Decomposition of contributing factors for grain production changes in China major grain producing areas. Jiangsu Agricultural Sciences， 2018， 46（22）： 328-333.
	沈方，郝瑞彬，尹力军，等. 我国粮食主产区粮食生产变动贡献因素分解. 江苏农业科学， 2018， 46（22）： 328-333.
2	Han B B. Remote sensing mapping of staple crops distribution. Changchun： Jilin Agricultural University， 2020.
	韩冰冰. 吉林省大宗作物分布遥感制图. 长春：吉林大学， 2020.
3	Li H， Tang Y J. Advantageous crops and their changes of each provinces in China. Journal of Anhui Agricultural Sciences， 2015， 43（2）： 337-340， 346.
	李红，唐永金. 我国大陆各省份优势作物及其变化研究.安徽农业科学， 2015， 43（2）： 337-340， 346.
4	Zhao Y. Research on supply-side structural reform and optimization of planting industry in Jilin Province. Changchun： Jilin Agricultural University， 2019.
	赵悦. 吉林省种植业供给侧结构性改革及其优化研究. 长春：吉林农业大学， 2019.
5	Ding M J， Chen Q， Xin L J， et al. Spatial and temporal variations of multiple cropping index in China based on SPOT-NDVI during 1999-2013. Acta Geographica Sinica， 2015， 70（7）： 1080-1090.
	丁明军，陈倩，辛良杰，等. 1999-2013年中国耕地复种指数的时空演变格局. 地理学报， 2015， 70（7）： 1080-1090.
6	Zhang M Y， Zhang F Z， Yan H G. High yield cultivation techniques of spring wheat multiple cropping Chinese cabbage in western Jilin Province. Chinese Horticulture Abstracts， 2015， 31（8）： 183-184.
	张明艳，张凤珍，闫海刚. 吉林西部春小麦复种白菜高产栽培技术. 中国园艺文摘， 2015， 31（8）： 183-184.
7	Wang S. Genome-wide association analysis for the traits related feeding value of rapeseed （Brassica napus L.）. Chongqing： Southwest University， 2016.
	王书. 饲用油菜植株营养品质性状的关联分析. 重庆：西南大学， 2016.
8	Zhou P， Jiao M N， He W S， et al. Comparison of the growth traits of post-wheat multiple cropping forage rape varieties in Helan County， Ningxia. Journal of Hunan Agricultural University （Natural Sciences Edition）， 2020， 46（3）： 285-290.
	周鹏，焦敏娜，何文寿，等. 宁夏贺兰县麦后复种饲用油菜品种生长特性的比较. 湖南农业大学学报（自然科学版）， 2020， 46（3）： 285-290.
9	Chen Q. Study on key technology of high efficiency and high quality production of forage rape. Wuhan： Huazhong Agricultural University， 2018.
	陈权. 饲料油菜高效优质生产关键技术研究. 武汉：华中农业大学， 2018.
10	Wang F， Xiang S H， Zhao Y P， et al. Preparation of rape mixed silage and its feeding effect on goat. Animal Husbandry and Feed Science， 2017， 38（8）： 16-19.
	王凤，向守红，赵耀鹏，等. 油菜混合青贮加工及其对山羊饲喂效果的研究. 畜牧与饲料科学， 2017， 38（8）： 16-19.
11	Mao X， Zhao J Y， Liu G Q， et al. Effect of forage rape fermentation total mixed ration （FTMR） on intensity finishing in lamb. China Feed， 2019（11）： 66-68.
	毛鑫，赵家宇，刘桂琼，等. 饲用油菜FTMR的羔羊强度育肥效果研究. 中国饲料， 2019（11）： 66-68.
12	Dong X Y， Tang S Q， Ma Y Y， et al. Study on the effects of feed Brassica napus L. on the performance of rabbits. China Feed， 2015（11）： 12-15.
	董小英，唐胜球，马元元，等. 日粮中添加饲用油菜养殖肉兔的效果研究. 中国饲料， 2015（11）： 12-15.
13	Liu M， Bi Y D， He X M， et al. Effect of silage processing quality and native pigs feeding values on grazing Brassica napus. Feed Research， 2019， 42（9）： 51-54.
	刘明，毕影东，何鑫淼，等. 饲用油菜青贮加工品质及民猪的饲喂效果研究. 饲料研究， 2019， 42（9）： 51-54.
14	Vetharaniam I， Vibart R E， Pacheco D. Evaluation of a sheep rumen model with fresh forages of diverse chemical composition. Journal of Animal Science， 2018， 96（12）： 5287-5299.
15	Li F H. Effects of alpine meadow native grass and cultivated oats on digestion and metabolism of Tibetan sheep. Lanzhou： Lanzhou University， 2017.
	李福厚. 高寒草甸天然牧草和栽培草地燕麦对藏绵羊消化代谢的影响. 兰州：兰州大学， 2017.
16	Wang W. Assessment of productive performance and nutritive value of 21 oat genotypes in western Jilin Province. Changchun： Northeast Normal University， 2016.
	王巍. 吉林省西部地区21个燕麦品种生产性能和营养价值评价. 长春：东北师范大学， 2016.
17	Hou J J. Study on influencing factors on the nutritional quality of oat hay in alpine meadow pasture. Lanzhou： Gansu Agricultural University， 2013.
	侯建杰. 高寒牧区燕麦青干草品质的影响因素研究. 兰州：甘肃农业大学， 2013.
18	Zhao D M. Current situation and development trend of oat production and utilization. Heilongjiang Animal Science and Veterinary Medicine， 2016（22）： 177-179.
	赵得明. 燕麦草生产利用现状及发展趋势. 黑龙江畜牧兽医， 2016（22）： 177-179.
19	Eder Alexandre Minski da M， Miguel D， Esteban R， et al. Nutritive value and herbage mass in hybrids of Paspalum plicatulum×Paspalum guenoarum fertilized with nitrogen or in mixture with temperate legumes. Grassland Science， 2020， 66（4）： 261-270.
20	Zhang H M， Li X L， Li L P， et al. Effects of species combination on community diversity and productivity of alpine artificial grassland. Acta Agrestia Sinica， 2020， 28（5）： 1436-1443.
	张慧敏，李希来，李兰平，等. 草种配置对高寒人工草地群落多样性和生产力的影响. 草地学报， 2020， 28（5）： 1436-1443.
21	Jiang Z， Chen F， Wang D J， et al. Effects of intercropping burr medic with oats on forage yield and quality. Chinese Journal of Grassland， 2020， 42（5）： 127-135.
	江舟，陈丰，王东军，等. 金花菜与燕麦间作对牧草产量与品质的影响. 中国草地学报， 2020， 42（5）： 127-135.
22	Yang X P， Li P， Dong C F， et al. Studies on the dynamics of above-ground biomass and nutritive value of annual ryegrass and common oat mixtures.Acta Agrestia Sinica， 2020， 28（1）： 149-158.
	杨晓鹏，李平，董臣飞，等. 多花黑麦草+燕麦混播草地地上生物量和营养品质动态研究. 草地学报， 2020， 28（1）： 149-158.
23	Zhu Q Q， Liu G H， Xu Y M， et al. Effect of water and nitrogen on the yield and quality of forage rape grown after wheat in South Xinjiang. Chinese Journal of Eco-Agriculture， 2019， 27（7）： 1033-1041.
	朱倩倩，刘国宏，许咏梅，等. 水氮对新疆南部麦后复种饲用油菜产量和品质的影响. 中国生态农业学报（中英文）， 2019， 27（7）： 1033-1041.
24	Yu X H， He W S， Jia B， et al. Effects of sowing rate and harvest time on yield and quality of forage rape. Jiangsu Agricultural Sciences， 2017， 45（13）： 69-72.
	俞晓红，何文寿，贾彪，等. 播种量和收获期对饲用油菜产量和品质的影响. 江苏农业科学， 2017， 45（13）： 69-72.
25	Gu C M， Li Y S， Xie L H， et al. Analysis on application advantages of rapeseed as green manure. Soil and Fertilizer Sciences in China， 2019（1）： 180-183.
	顾炽明，李银水，谢立华，等. 浅析油菜作为绿肥的应用优势. 中国土壤与肥料， 2019（1）： 180-183.
26	Wang B， Song L J， Wang Z K， et al. Production and feeding technology of fodder-rapeseed in China. Chinese Journal of Oil Crop Sciences， 2018， 40（5）： 695-701.
	汪波，宋丽君，王宗凯，等. 我国饲用油菜种植及应用技术研究进展. 中国油料作物学报， 2018， 40（5）： 695-701.
27	Li W G， Yang X X， Huang C G， et al. Effects of rapeseed green manure on soil fertility and bacterial community in dryland wheat field. Scientia Agricultura Sinica， 2019， 52（15）： 2664-2677.
	李文广，杨晓晓，黄春国，等. 饲用油菜作绿肥对后茬麦田土壤肥力及细菌群落的影响. 中国农业科学， 2019， 52（15）： 2664-2677.
28	Song J C， Niu Y B. Feed analysis and feed quality detection technology. Beijing： China Agricultural Science and Technology Press， 2012.
	宋金昌，牛一兵. 饲料分析与饲料质量检测技术. 北京：中国农业科学技术出版社， 2012.
29	Van Soest P J， Robertson J B， Lewis B A. Methods for dietary fiber neutral detergent fiber and non starch polysaccharides in relation to animal nutrition. Journal of Dairy Science， 1991， 74（10）： 3583-3597.
30	Kuang X， Ji J， Liang W X， et al. Effects of mixed sowing ratio and mowing period of Medicago sativa and Bromus inermis on silage quality in cold regions of North China. Acta Prataculturae Sinica， 2018， 27（12）： 187-198.
	邝肖，季婧，梁文学，等. 北方寒区紫花苜蓿/无芒雀麦混播比例和刈割时期对青贮品质的影响. 草业学报， 2018， 27（12）： 187-198.
31	Xu L J， Yang G X， Xin X P， et al. Comprehensive evaluation of nutrition of grassland sunder different mixed sowing patterns. Pratacultural Science， 2014， 31（2）： 278-283.
	徐丽君，杨桂霞，辛晓平，等. 不同混播模式下草地营养成分综合评价. 草业科学， 2014， 31（2）： 278-283.
32	Zhang C Q， Zhang J， Li Q R. A review on the research perspectives and methods for grassland vegetation biomass dynamics. Chinese Journal of Ecology， 2015， 34（4）： 1143-1151.
	张彩琴，张军，李茜若. 草地植被生物量动态研究视角与研究方法评述. 生态学杂志， 2015， 34（4）： 1143-1151.
33	Bai Y F， Yu Z， Yang Q C， et al. Mechanisms regulating the productivity and stability of artificial grasslands in China： Issues， progress， and prospects. Chinese Science Bulletin， 2018， 63（5/6）： 511-520.
	白永飞，玉柱，杨青川，等. 人工草地生产力和稳定性的调控机理研究：问题、进展与展望. 科学通报， 2018， 63（5/6）： 511-520.
34	Madhav D， Charles P W， Carlos V， et al. Interseeding alfalfa into native grassland for enhanced yield and water use efficiency. Agronomy Journal， 2020， 112（3）： 1931-1942.
35	Sturludóttir E， Brophy C， Bélanger G， et al. Benefits of mixing grasses and legumes for herbage yield and nutritive value in Northern Europe and Canada. Grass and Forage Science， 2014， 69（2）： 229-240.
36	Wang W N， Wang Z K， Wang B， et al. Benefits of mixed cropping of forage rapeseed with other forage crops. Chinese Journal of Oil Crop Sciences， 2019， 41（3）： 317-323.
	王旺年，王宗凯，汪波，等. 饲用油菜与牧草混合冬播效应研究. 中国油料作物学报， 2019， 41（3）： 317-323.
37	Li X B， Li L J， Ma N J. Effects of rape and oat mixed sowing on forage yield， quality and soil enzyme activity. Chinese Journal of Soil Science， 2020， 51（4）： 897-904.
	李学博，李立军，马乃娇. 油菜燕麦混播对饲草产量品质及土壤酶活性的影响. 土壤通报， 2020， 51（4）： 897-904.
38	Liu Y， Ma X， Qin Y. Rapeseed-grass mixed sowing patterns： Effects on rapeseed production and grassland productivity. Chinese Agricultural Science Bulletin， 2020， 36（8）： 43-49.
	刘勇，马祥，秦燕. 油草混播种类对油菜生产和草地生产性能的影响. 中国农学通报， 2020， 36（8）： 43-49.
39	Guo X， Qi S， Niu H， et al. Analysis on growing trends and forage nutrition of oat grass in single sowing and mixed sowing. Journal of Domestic Animal Ecology， 2020， 41（5）： 61-65.
	郭孝，齐爽，牛晖，等. 燕麦草在单播以及混播下牧草生长动态和营养价值的探讨. 家畜生态学报， 2020， 41（5）： 61-65.
40	Wang H C， Liu D S， Liu C L， et al.Research progress of forage rape and its feed value in China. Soils and Crops， 2016， 5（1）： 60-64.
	王洪超，刘大森，刘春龙，等. 饲用油菜及其饲用价值研究进展. 土壤与作物， 2016， 5（1）： 60-64.
41	Ma N J. Effects of mixed sowing and application of rapeseed and oat on forage yield and soil characters in saline alkali soil. Hohhot： Inner Mongolia Agricultural University， 2019.
	马乃娇. 盐碱地油菜燕麦混播结合施肥对饲草产量和土壤性状的影响. 呼和浩特：内蒙古农业大学， 2019.
42	Qin Y， Guan Y J， Wang Y L， et al. Effects of fodder-rape intercropping in the alpine region. Pratacultural Science， 2019， 36（10）： 2612-2621.
	秦燕，关佑君，王有良，等. 高寒区饲用油菜混作效应研究. 草业科学， 2019， 36（10）： 2612-2621.

处理 Treatments	干草产量 Hay yield (kg DM·hm^-2)	粗蛋白 CP (%)	粗脂肪 EE (%)	粗灰分 Ash (%)	中性洗涤纤维 NDF (%)	酸性洗涤纤维 ADF (%)
A₁	4519.20±298.21k	11.78±0.91f	2.54±0.10c	6.86±0.01b	53.26±2.51cd	31.93±3.28cd
A₂	4770.15±288.26h	11.99±0.96ef	2.52±0.11c	6.82±0.03b	52.18±1.43cd	29.34±5.87d
A₃	5020.02±182.32ef	13.20±0.52cd	2.47±0.48c	6.80±0.05b	52.06±1.31cd	28.99±6.22d
A₄	5259.83±219.36c	13.91±1.23b	2.46±0.18c	6.78±0.07b	51.05±0.30cd	28.69±6.52d
A₅	5262.42±475.21c	13.91±1.23b	2.44±0.10c	6.73±0.12b	50.36±0.39d	27.81±7.40d
A₆	5243.35±371.92c	13.91±1.23b	2.32±0.02c	6.72±0.13b	49.88±0.87d	26.88±8.33d
B₁	4911.71±469.35fg	12.72±0.04de	2.62±0.08bc	6.89±0.04b	57.58±3.21bc	32.15±3.06cd
B₂	5332.86±471.28b	14.42±1.74ab	2.53±0.22c	6.83±0.02b	55.77±5.02bc	36.54±1.33bc
B₃	5514.54±580.26a	13.95±1.27ab	2.49±0.02c	6.82±0.03b	54.15±3.40cd	35.63±0.42bc
B₄	5367.28±399.36b	13.99±1.31ab	2.47±0.29c	6.80±0.05b	52.96±2.21cd	34.36±0.85c
B₅	5269.32±712.55c	13.72±1.04bc	2.46±0.12c	6.79±0.06b	51.68±0.93cd	33.51±1.70c
B₆	5220.28±621.03cd	13.57±0.89bc	2.38±0.05c	6.75±0.10b	51.22±0.47cd	31.58±3.63cd
C₁	5281.23±512.47c	13.58±0.91bc	2.77±0.02bc	6.92±0.07b	60.85±3.28b	35.41±0.20bc
C₂	5321.81±430.25bc	13.05±0.37cd	2.65±0.17bc	6.82±0.03b	55.99±4.28bc	37.45±2.24bc
C₃	5232.62±412.35cd	13.71±1.03bc	2.62±0.12bc	6.80±0.05b	53.27±2.52cd	36.78±1.57bc
C₄	5146.66±402.68d	13.38±0.71c	2.57±0.02c	6.77±0.08b	51.88±1.13cd	35.49±0.28bc
C₅	5056.19±482.35e	13.15±0.47cd	2.52±0.09c	6.75±0.10b	64.51±3.89ab	34.82±0.39bc
C₆	4955.59±395.68f	12.86±0.18d	2.48±0.02c	6.72±0.13b	50.87±0.12cd	32.82±2.39cd
D₁	5126.05±412.08de	13.18±0.50cd	2.79±0.16bc	6.96±0.11ab	62.18±4.28ab	36.89±1.68bc
D₂	5287.43±512.08c	13.76±1.08bc	2.68±0.22bc	6.83±0.02b	56.21±2.05bc	38.16±2.95bc
D₃	5247.26±410.21c	13.66±0.98bc	2.65±0.05bc	6.81±0.04b	54.18±3.43cd	37.61±2.40bc
D₄	5136.53±312.58de	13.33±0.65cd	2.61±0.08bc	6.79±0.06b	52.42±1.67cd	36.71±1.50bc
D₅	5046.06±368.95ef	13.10±0.42cd	2.58±0.05c	6.75±0.10b	52.41±1.66cd	35.81±0.60bc
D₆	4996.11±412.38ef	13.06±0.38cd	2.50±0.05c	6.80±0.05b	51.31±0.56cd	33.57±1.64c
E₁	5056.19±481.02e	13.15±0.47cd	2.82±0.14bc	7.06±0.21ab	63.25±4.69ab	38.69±2.36b
E₂	4945.81±321.89fg	12.91±0.23cd	2.71±0.11bc	6.87±0.02b	57.69±4.94bc	39.41±4.20ab
E₃	4865.47±289.68g	12.73±0.05d	2.69±0.14bc	6.86±0.01b	55.52±4.77c	38.57±3.36b
E₄	4714.57±385.64hi	12.31±0.38e	2.65±0.02bc	6.85±0.01b	53.71±2.96cd	37.42±2.21bc
E₅	4664.27±521.39i	12.16±0.52ef	2.62±0.19bc	6.84±0.01b	53.66±2.91cd	36.48±1.27bc
E₆	4573.84±402.36jk	11.92±0.76ef	2.58±0.01c	6.83±0.02b	52.44±1.69cd	34.88±0.33bc
F₁	4462.37±301.24k	11.39±1.29f	3.08±0.08ab	7.11±0.26ab	51.11±0.36cd	39.56±4.35ab
F₂	4251.39±247.63l	10.87±1.81gh	2.89±0.13b	7.05±0.20ab	59.91±3.29bc	40.82±4.83ab
F₃	4201.09±345.28lm	10.73±1.95gh	2.78±0.28bc	6.88±0.03b	57.25±5.14bc	41.52±3.21ab
F₄	4150.79±398.25m	10.59±1.02gh	2.72±0.07bc	6.86±0.01b	56.46±5.71bc	38.42±3.21b
F₅	4100.49±410.21m	10.45±1.32h	2.70±0.13bc	6.85±0.01b	55.71±4.96c	37.97±2.76bc
F₆	3999.89±258.36n	10.16±0.52h	2.65±0.03bc	6.85±0.01b	53.81±3.06cd	35.71±0.50bc
CK_A	3951.32±251.32n	14.51±1.53a	1.38±0.65d	6.71±0.14b	47.28±3.47d	26.31±8.90d
CK_B	3882.23±247.36n	7.27±0.36i	3.25±0.06a	7.25±0.40a	66.21±4.71a	43.21±4.89a

处理 Treatments	干草产量 Hay yield (kg DM·hm^-2)	粗蛋白 CP (%)	粗脂肪 EE (%)	粗灰分 Ash (%)	中性洗涤纤维 NDF (%)	酸性洗涤纤维 ADF (%)
A₁	4519.20±298.21k	11.78±0.91f	2.54±0.10c	6.86±0.01b	53.26±2.51cd	31.93±3.28cd
A₂	4770.15±288.26h	11.99±0.96ef	2.52±0.11c	6.82±0.03b	52.18±1.43cd	29.34±5.87d
A₃	5020.02±182.32ef	13.20±0.52cd	2.47±0.48c	6.80±0.05b	52.06±1.31cd	28.99±6.22d
A₄	5259.83±219.36c	13.91±1.23b	2.46±0.18c	6.78±0.07b	51.05±0.30cd	28.69±6.52d
A₅	5262.42±475.21c	13.91±1.23b	2.44±0.10c	6.73±0.12b	50.36±0.39d	27.81±7.40d
A₆	5243.35±371.92c	13.91±1.23b	2.32±0.02c	6.72±0.13b	49.88±0.87d	26.88±8.33d
B₁	4911.71±469.35fg	12.72±0.04de	2.62±0.08bc	6.89±0.04b	57.58±3.21bc	32.15±3.06cd
B₂	5332.86±471.28b	14.42±1.74ab	2.53±0.22c	6.83±0.02b	55.77±5.02bc	36.54±1.33bc
B₃	5514.54±580.26a	13.95±1.27ab	2.49±0.02c	6.82±0.03b	54.15±3.40cd	35.63±0.42bc
B₄	5367.28±399.36b	13.99±1.31ab	2.47±0.29c	6.80±0.05b	52.96±2.21cd	34.36±0.85c
B₅	5269.32±712.55c	13.72±1.04bc	2.46±0.12c	6.79±0.06b	51.68±0.93cd	33.51±1.70c
B₆	5220.28±621.03cd	13.57±0.89bc	2.38±0.05c	6.75±0.10b	51.22±0.47cd	31.58±3.63cd
C₁	5281.23±512.47c	13.58±0.91bc	2.77±0.02bc	6.92±0.07b	60.85±3.28b	35.41±0.20bc
C₂	5321.81±430.25bc	13.05±0.37cd	2.65±0.17bc	6.82±0.03b	55.99±4.28bc	37.45±2.24bc
C₃	5232.62±412.35cd	13.71±1.03bc	2.62±0.12bc	6.80±0.05b	53.27±2.52cd	36.78±1.57bc
C₄	5146.66±402.68d	13.38±0.71c	2.57±0.02c	6.77±0.08b	51.88±1.13cd	35.49±0.28bc
C₅	5056.19±482.35e	13.15±0.47cd	2.52±0.09c	6.75±0.10b	64.51±3.89ab	34.82±0.39bc
C₆	4955.59±395.68f	12.86±0.18d	2.48±0.02c	6.72±0.13b	50.87±0.12cd	32.82±2.39cd
D₁	5126.05±412.08de	13.18±0.50cd	2.79±0.16bc	6.96±0.11ab	62.18±4.28ab	36.89±1.68bc
D₂	5287.43±512.08c	13.76±1.08bc	2.68±0.22bc	6.83±0.02b	56.21±2.05bc	38.16±2.95bc
D₃	5247.26±410.21c	13.66±0.98bc	2.65±0.05bc	6.81±0.04b	54.18±3.43cd	37.61±2.40bc
D₄	5136.53±312.58de	13.33±0.65cd	2.61±0.08bc	6.79±0.06b	52.42±1.67cd	36.71±1.50bc
D₅	5046.06±368.95ef	13.10±0.42cd	2.58±0.05c	6.75±0.10b	52.41±1.66cd	35.81±0.60bc
D₆	4996.11±412.38ef	13.06±0.38cd	2.50±0.05c	6.80±0.05b	51.31±0.56cd	33.57±1.64c
E₁	5056.19±481.02e	13.15±0.47cd	2.82±0.14bc	7.06±0.21ab	63.25±4.69ab	38.69±2.36b
E₂	4945.81±321.89fg	12.91±0.23cd	2.71±0.11bc	6.87±0.02b	57.69±4.94bc	39.41±4.20ab
E₃	4865.47±289.68g	12.73±0.05d	2.69±0.14bc	6.86±0.01b	55.52±4.77c	38.57±3.36b
E₄	4714.57±385.64hi	12.31±0.38e	2.65±0.02bc	6.85±0.01b	53.71±2.96cd	37.42±2.21bc
E₅	4664.27±521.39i	12.16±0.52ef	2.62±0.19bc	6.84±0.01b	53.66±2.91cd	36.48±1.27bc
E₆	4573.84±402.36jk	11.92±0.76ef	2.58±0.01c	6.83±0.02b	52.44±1.69cd	34.88±0.33bc
F₁	4462.37±301.24k	11.39±1.29f	3.08±0.08ab	7.11±0.26ab	51.11±0.36cd	39.56±4.35ab
F₂	4251.39±247.63l	10.87±1.81gh	2.89±0.13b	7.05±0.20ab	59.91±3.29bc	40.82±4.83ab
F₃	4201.09±345.28lm	10.73±1.95gh	2.78±0.28bc	6.88±0.03b	57.25±5.14bc	41.52±3.21ab
F₄	4150.79±398.25m	10.59±1.02gh	2.72±0.07bc	6.86±0.01b	56.46±5.71bc	38.42±3.21b
F₅	4100.49±410.21m	10.45±1.32h	2.70±0.13bc	6.85±0.01b	55.71±4.96c	37.97±2.76bc
F₆	3999.89±258.36n	10.16±0.52h	2.65±0.03bc	6.85±0.01b	53.81±3.06cd	35.71±0.50bc
CK_A	3951.32±251.32n	14.51±1.53a	1.38±0.65d	6.71±0.14b	47.28±3.47d	26.31±8.90d
CK_B	3882.23±247.36n	7.27±0.36i	3.25±0.06a	7.25±0.40a	66.21±4.71a	43.21±4.89a

处理组 Treatments	干草产量 Hay yield (kg DM·hm^-2)	粗蛋白 CP (%)	粗脂肪 EE (%)	粗灰分 Ash (%)	中性洗涤纤维 NDF (%)	酸性洗涤纤维 ADF (%)
A₁	5252.59±498.21i	13.80±0.28de	2.79±0.10c	6.25±0.02a	60.72±1.89c	41.25±1.84bc
A₂	5552.75±288.26g	13.31±0.77e	2.77±0.13c	6.23±0.01a	59.73±2.88c	40.52±2.57c
A₃	5853.47±182.32e	14.65±0.57cd	2.72±0.54c	6.20±0.03a	59.71±2.90c	39.52±3.57c
A₄	6153.25±519.36cd	15.44±1.36b	2.71±0.21c	6.17±0.06a	59.68±2.93c	38.79±4.30cd
A₅	6453.52±785.21a	15.45±1.37b	2.68±0.12c	6.15±0.08a	59.65±2.96c	38.52±4.57cd
A₆	6273.35±471.92bc	15.46±1.38b	2.55±1.43c	6.12±0.11a	59.61±3.00c	33.88±9.21d
B₁	5702.57±469.35f	14.11±0.03d	2.88±0.08bc	6.25±0.02a	65.64±3.03bc	44.23±1.14bc
B₂	6002.75±571.25de	15.48±1.40b	2.78±0.25c	6.24±0.01a	63.58±0.97bc	43.29±0.20bc
B₃	6122.85±452.26cd	16.01±1.93ab	2.74±0.03c	6.23±0.01a	61.73±0.88bc	42.85±0.24bc
B₄	6303.02±489.36b	15.53±1.45b	2.72±0.33c	6.22±0.01a	60.37±2.24c	41.99±0.11bc
B₅	6242.95±512.55bc	15.22±1.14bc	2.71±0.14c	6.20±0.03a	58.92±3.69c	40.88±2.21bc
B₆	6194.91±421.03c	15.06±0.98bc	2.62±0.07c	6.19±0.04a	58.39±4.22c	38.53±4.56cd
C₁	6152.52±612.15cd	15.05±0.99bc	3.05±0.03bc	6.27±0.04a	69.37±1.69ab	44.96±1.87ab
C₂	6407.91±520.25b	14.49±0.41cd	2.92±0.20bc	6.25±0.02a	63.83±1.22bc	44.05±0.96bc
C₃	6198.11±412.58c	15.23±1.15bc	2.88±0.12bc	6.24±0.01a	60.73±1.88c	43.85±0.76bc
C₄	6152.95±602.65cd	14.85±0.77c	2.83±0.01bc	6.23±0.01a	59.14±3.47c	42.89±0.20bc
C₅	6014.91±462.53d	15.59±0.51b	2.77±0.11c	6.23±0.01a	58.27±4.34c	41.57±1.52bc
C₆	5978.88±421.68de	14.28±0.21d	2.73±0.01c	6.21±0.02a	57.99±4.49c	39.21±3.88c
D₁	6077.85±612.05d	14.63±0.55cd	3.07±0.17bc	6.31±0.08a	70.89±4.27a	45.01±1.92ab
D₂	6002.75±516.08de	15.27±1.19bc	2.95±0.23bc	6.26±0.03a	64.08±1.47bc	44.91±1.82ab
D₃	5912.75±412.21e	15.17±1.09bc	2.92±0.07bc	6.25±0.02a	61.77±0.84bc	44.68±1.59b
D₄	5882.84±382.59e	14.80±0.72c	2.87±0.10bc	6.25±0.02a	59.76±2.85c	43.52±0.43bc
D₅	5867.75±378.95e	14.54±0.46cd	2.84±0.07bc	6.24±0.01a	59.75±2.86c	42.62±0.47bc
D₆	5717.78±412.38f	14.49±0.41cd	2.75±0.07c	6.22±0.01a	58.49±4.12c	40.96±2.13bc
E₁	5477.51±481.02gh	14.59±0.51cd	3.39±0.08ab	6.28±0.05a	72.01±5.40a	47.20±2.11ab
E₂	5385.95±321.89h	14.33±0.25cd	2.98±0.11bc	6.27±0.04a	65.77±3.16b	46.52±3.43ab
E₃	5321.42±429.68hi	14.13±0.04d	2.96±0.14bc	6.26±0.03a	63.29±0.68bc	45.31±2.22ab
E₄	5267.46±385.64hi	13.65±0.43de	2.92±0.03bc	6.25±0.02a	61.23±1.38bc	44.86±1.77ab
E₅	5207.35±521.93i	13.50±0.58e	2.88±0.22bc	6.25±0.02a	61.17±1.44bc	44.51±1.42bc
E₆	5102.35±482.38j	13.23±0.85e	2.84±0.02bc	6.24±0.01a	59.78±2.83c	42.55±0.54bc
F₁	5387.56±301.24h	12.64±1.44f	3.10±0.14b	6.27±0.04a	71.09±4.39a	48.80±4.02a
F₂	5378.57±347.63h	12.07±2.01g	3.18±0.13ab	6.29±0.06a	68.30±2.76ab	47.69±3.87ab
F₃	5365.03±325.21h	11.91±2.17g	3.06±0.30bc	6.27±0.04a	65.27±2.66bc	46.58±1.58ab
F₄	5207.58±308.25i	11.75±2.32gh	2.99±0.07bc	6.26±0.03a	64.36±1.75bc	45.92±2.83ab
F₅	5162.54±423.12ij	11.59±2.49gh	2.97±0.13bc	6.25±0.02a	63.51±0.90bc	45.12±2.03ab
F₆	4991.51±458.35k	11.28±2.81h	2.92±0.02bc	6.25±0.02a	61.34±1.27bc	43.57±0.48bc
CK_A	4920.22±452.36kl	16.25±2.17a	1.42±0.60d	5.98±0.01a	58.12±4.62c	37.52±5.57cd
CK_B	4863.11±587.81l	7.90±1.58i	3.45±0.06a	6.32±0.09a	72.14±4.69a	48.82±3.69a

处理组 Treatments	干草产量 Hay yield (kg DM·hm^-2)	粗蛋白 CP (%)	粗脂肪 EE (%)	粗灰分 Ash (%)	中性洗涤纤维 NDF (%)	酸性洗涤纤维 ADF (%)
A₁	5252.59±498.21i	13.80±0.28de	2.79±0.10c	6.25±0.02a	60.72±1.89c	41.25±1.84bc
A₂	5552.75±288.26g	13.31±0.77e	2.77±0.13c	6.23±0.01a	59.73±2.88c	40.52±2.57c
A₃	5853.47±182.32e	14.65±0.57cd	2.72±0.54c	6.20±0.03a	59.71±2.90c	39.52±3.57c
A₄	6153.25±519.36cd	15.44±1.36b	2.71±0.21c	6.17±0.06a	59.68±2.93c	38.79±4.30cd
A₅	6453.52±785.21a	15.45±1.37b	2.68±0.12c	6.15±0.08a	59.65±2.96c	38.52±4.57cd
A₆	6273.35±471.92bc	15.46±1.38b	2.55±1.43c	6.12±0.11a	59.61±3.00c	33.88±9.21d
B₁	5702.57±469.35f	14.11±0.03d	2.88±0.08bc	6.25±0.02a	65.64±3.03bc	44.23±1.14bc
B₂	6002.75±571.25de	15.48±1.40b	2.78±0.25c	6.24±0.01a	63.58±0.97bc	43.29±0.20bc
B₃	6122.85±452.26cd	16.01±1.93ab	2.74±0.03c	6.23±0.01a	61.73±0.88bc	42.85±0.24bc
B₄	6303.02±489.36b	15.53±1.45b	2.72±0.33c	6.22±0.01a	60.37±2.24c	41.99±0.11bc
B₅	6242.95±512.55bc	15.22±1.14bc	2.71±0.14c	6.20±0.03a	58.92±3.69c	40.88±2.21bc
B₆	6194.91±421.03c	15.06±0.98bc	2.62±0.07c	6.19±0.04a	58.39±4.22c	38.53±4.56cd
C₁	6152.52±612.15cd	15.05±0.99bc	3.05±0.03bc	6.27±0.04a	69.37±1.69ab	44.96±1.87ab
C₂	6407.91±520.25b	14.49±0.41cd	2.92±0.20bc	6.25±0.02a	63.83±1.22bc	44.05±0.96bc
C₃	6198.11±412.58c	15.23±1.15bc	2.88±0.12bc	6.24±0.01a	60.73±1.88c	43.85±0.76bc
C₄	6152.95±602.65cd	14.85±0.77c	2.83±0.01bc	6.23±0.01a	59.14±3.47c	42.89±0.20bc
C₅	6014.91±462.53d	15.59±0.51b	2.77±0.11c	6.23±0.01a	58.27±4.34c	41.57±1.52bc
C₆	5978.88±421.68de	14.28±0.21d	2.73±0.01c	6.21±0.02a	57.99±4.49c	39.21±3.88c
D₁	6077.85±612.05d	14.63±0.55cd	3.07±0.17bc	6.31±0.08a	70.89±4.27a	45.01±1.92ab
D₂	6002.75±516.08de	15.27±1.19bc	2.95±0.23bc	6.26±0.03a	64.08±1.47bc	44.91±1.82ab
D₃	5912.75±412.21e	15.17±1.09bc	2.92±0.07bc	6.25±0.02a	61.77±0.84bc	44.68±1.59b
D₄	5882.84±382.59e	14.80±0.72c	2.87±0.10bc	6.25±0.02a	59.76±2.85c	43.52±0.43bc
D₅	5867.75±378.95e	14.54±0.46cd	2.84±0.07bc	6.24±0.01a	59.75±2.86c	42.62±0.47bc
D₆	5717.78±412.38f	14.49±0.41cd	2.75±0.07c	6.22±0.01a	58.49±4.12c	40.96±2.13bc
E₁	5477.51±481.02gh	14.59±0.51cd	3.39±0.08ab	6.28±0.05a	72.01±5.40a	47.20±2.11ab
E₂	5385.95±321.89h	14.33±0.25cd	2.98±0.11bc	6.27±0.04a	65.77±3.16b	46.52±3.43ab
E₃	5321.42±429.68hi	14.13±0.04d	2.96±0.14bc	6.26±0.03a	63.29±0.68bc	45.31±2.22ab
E₄	5267.46±385.64hi	13.65±0.43de	2.92±0.03bc	6.25±0.02a	61.23±1.38bc	44.86±1.77ab
E₅	5207.35±521.93i	13.50±0.58e	2.88±0.22bc	6.25±0.02a	61.17±1.44bc	44.51±1.42bc
E₆	5102.35±482.38j	13.23±0.85e	2.84±0.02bc	6.24±0.01a	59.78±2.83c	42.55±0.54bc
F₁	5387.56±301.24h	12.64±1.44f	3.10±0.14b	6.27±0.04a	71.09±4.39a	48.80±4.02a
F₂	5378.57±347.63h	12.07±2.01g	3.18±0.13ab	6.29±0.06a	68.30±2.76ab	47.69±3.87ab
F₃	5365.03±325.21h	11.91±2.17g	3.06±0.30bc	6.27±0.04a	65.27±2.66bc	46.58±1.58ab
F₄	5207.58±308.25i	11.75±2.32gh	2.99±0.07bc	6.26±0.03a	64.36±1.75bc	45.92±2.83ab
F₅	5162.54±423.12ij	11.59±2.49gh	2.97±0.13bc	6.25±0.02a	63.51±0.90bc	45.12±2.03ab
F₆	4991.51±458.35k	11.28±2.81h	2.92±0.02bc	6.25±0.02a	61.34±1.27bc	43.57±0.48bc
CK_A	4920.22±452.36kl	16.25±2.17a	1.42±0.60d	5.98±0.01a	58.12±4.62c	37.52±5.57cd
CK_B	4863.11±587.81l	7.90±1.58i	3.45±0.06a	6.32±0.09a	72.14±4.69a	48.82±3.69a

处理组 Treatments	干草产量 Hay yield (kg DM·hm^-2)	粗蛋白 CP (%)	粗脂肪 EE (%)	粗灰分 Ash (%)	中性洗涤纤维 NDF (%)	酸性洗涤纤维 ADF (%)
A₁	5854.41±358.25j	10.72±0.89ef	3.07±0.07cd	6.32±0.23c	59.50±1.66bc	35.48±1.56bc
A₂	6189.42±521.93h	10.91±0.70e	3.05±0.09cd	6.30±0.25c	58.54±2.62c	34.58±2.46bc
A₃	6524.85±607.35ef	12.01±0.40d	2.99±0.15cd	6.28±0.27c	58.52±2.64c	33.28±3.76c
A₄	6860.27±814.25c	12.66±1.05bc	2.98±0.16cd	6.26±0.29c	58.49±2.67c	32.99±4.05c
A₅	6961.44±569.38ab	12.66±1.04bc	2.95±0.19cd	6.23±0.32c	58.46±2.70c	32.11±4.93c
A₆	6928.52±857.35ab	12.66±1.05bc	2.81±0.33d	6.21±0.34c	58.42±2.74c	31.59±5.45c
B₁	6354.11±478.68g	11.57±0.04de	3.17±0.03c	6.45±0.10bc	64.33±3.17b	38.04±1.02b
B₂	6555.24±513.38ef	12.69±1.08bc	3.06±0.08cd	6.43±0.12bc	62.31±1.15bc	37.23±0.19bc
B₃	6756.48±841.91d	12.73±1.12bc	3.01±0.13cd	6.42±0.13bc	60.50±0.66bc	36.85±0.19bc
B₄	6689.40±471.25de	12.48±0.87cd	2.99±0.15cd	6.43±0.12bc	59.17±1.99c	36.11±0.93bc
B₅	6488.16±748.69f	13.12±1.51b	2.98±0.16cd	6.45±0.09bc	57.74±3.42c	35.16±1.88bc
B₆	6421.08±558.21fg	12.35±0.74cd	2.88±0.26cd	6.52±0.03b	57.22±3.94c	33.13±3.91c
C₁	6854.21±679.34cd	12.34±0.73cd	3.35±0.21bc	6.68±0.13b	66.35±4.18ab	38.67±1.63ab
C₂	6988.16±998.21a	11.88±0.27d	3.21±0.07bc	6.52±0.03b	62.55±1.39bc	37.88±0.84b
C₃	6871.08±789.36b	12.48±0.87cd	3.17±0.03c	6.75±0.20ab	59.51±1.65bc	37.71±0.67bc
C₄	6754.34±714.25d	12.18±0.57cd	3.11±0.03cd	6.56±0.01b	57.96±3.20c	36.89±0.15bc
C₅	6619.84±681.24e	11.96±0.35d	3.05±0.09cd	6.58±0.03b	57.10±4.06c	35.75±1.29bc
C₆	6604.25±597.17e	11.70±0.09d	3.00±0.14cd	6.59±0.04b	56.83±4.33c	33.72±3.32c
D₁	6754.01±685.92d	12.00±0.39d	3.38±0.24bc	6.71±0.16ab	67.59±3.84ab	38.70±1.66ab
D₂	6589.98±498.79ef	12.52±0.91c	3.24±0.10bc	6.56±0.01b	62.80±1.64bc	38.62±1.58ab
D₃	6490.52±541.28f	12.43±0.82cd	3.21±0.07bc	6.59±0.04b	60.53±0.63bc	38.42±1.38ab
D₄	6441.05±598.65fg	12.13±0.52cd	3.16±0.02c	6.63±0.08b	58.56±2.60c	37.43±0.39bc
D₅	6322.32±498.32g	11.92±0.31d	3.12±0.02c	6.65±0.10b	58.55±2.61c	36.65±0.39bc
D₆	6138.16±602.34h	11.88±0.27d	3.03±0.11cd	6.66±0.11b	57.32±3.84c	35.22±1.82bc
E₁	6454.82±812.05fg	11.96±0.35d	3.41±0.27bc	6.72±0.17ab	68.88±6.03ab	40.59±2.74a
E₂	6740.64±596.58d	11.75±0.14d	3.28±0.14bc	6.59±0.04b	64.45±3.29b	40.01±2.97ab
E₃	6325.02±512.41g	11.58±0.85de	3.25±0.11bc	6.62±0.07b	62.03±0.87bc	38.97±1.93ab
E₄	6310.54±421.81g	11.19±0.79e	3.21±0.07bc	6.68±0.13b	60.01±1.16bc	38.58±1.54ab
E₅	6222.32±485.64gh	11.06±0.82e	3.17±0.03c	6.69±0.14ab	59.95±1.21bc	38.27±1.23b
E₆	6004.17±501.42i	10.85±0.54ef	3.12±0.02c	6.71±0.16ab	58.59±2.57c	36.60±0.44bc
F₁	6309.31±408.71g	10.36±1.03f	3.73±0.59ab	6.54±0.01b	69.25±5.36ab	41.97±2.03a
F₂	6392.64±682.57fg	9.89±0.46fg	3.50±0.36b	6.73±0.18ab	66.93±2.51ab	41.01±1.96a
F₃	5992.74±367.39i	9.76±0.30g	3.36±0.22bc	6.71±0.16ab	63.96±2.80bc	40.06±3.02a
F₄	5940.06±345.27ij	9.63±0.14gh	3.29±0.15bc	6.70±0.15ab	63.08±1.92bc	39.49±2.45ab
F₅	5838.32±413.11j	9.51±0.02gh	3.27±0.13bc	6.69±0.14ab	62.24±1.08bc	38.80±1.76ab
F₆	5737.16±406.35k	9.25±0.33h	3.21±0.07bc	6.66±0.14b	60.12±1.04bc	37.47±0.43bc
CK_A	5632.68±693.85l	14.11±4.64a	1.58±0.05e	6.99±0.44a	56.35±4.81c	31.02±6.02c
CK_B	5527.36±802.34m	8.20±0.11i	3.80±0.66a	5.89±0.66d	69.36±5.02a	42.39±3.69a