欢迎访问《草业学报》官方网站,今天是

草业学报 ›› 2026, Vol. 35 ›› Issue (7): 105-116.DOI: 10.11686/cyxb2025277

• 研究论文 • 上一篇    

氮磷水肥耦合对无芒雀麦光合特性、生产性能及土壤养分的影响

孙静1(), 孙延亮1, 夏东杰1, 魏孔钦1, 杨开鑫1, 隋晓青2, 张前兵1()   

  1. 1.石河子大学动物科技学院,新疆 石河子 832003
    2.新疆农业大学草业学院,新疆 乌鲁木齐 830052
  • 收稿日期:2025-07-03 修回日期:2025-09-18 出版日期:2026-07-20 发布日期:2026-05-21
  • 通讯作者: 张前兵
  • 作者简介:Corresponding author. E-mail: qbz102@163.com
    孙静(1989-),女,山东临沂人,在读硕士。E-mail: 453651282@qq.com
  • 基金资助:
    新疆维吾尔自治区重点研发专项(2023B02031);国家现代农业产业技术体系资助

Effects of nitrogen-phosphorus and water coupling on soil nutrients and the photosynthetic characteristics and production performance of Bromus inermis

Jing SUN1(), Yan-liang SUN1, Dong-jie XIA1, Kong-qin WEI1, Kai-xin YANG1, Xiao-qing SUI2, Qian-bing ZHANG1()   

  1. 1.College of Animal Science & Technology,Shihezi University,Shihezi 832003,China
    2.College of Grassland Science,Xinjiang Agricultural University,Urumqi 830052,China
  • Received:2025-07-03 Revised:2025-09-18 Online:2026-07-20 Published:2026-05-21
  • Contact: Qian-bing ZHANG

摘要:

为明确不同氮磷水肥耦合对无芒雀麦光合特性、饲草生产性能及无芒雀麦田土壤养分含量的影响,本研究以‘乌苏1号’无芒雀麦为试验对象,采用双因素随机区组设计,水分设置3个梯度,分别为灌溉3800 (W1)、5300 (W2)和6800 m3·hm-2(W3);施肥设置3个梯度,分别为不施肥(F0)、施N 120 kg·hm-2和P2O5 100 kg·hm-2(F1)、施N 180 kg·hm-2和P2O5 150 kg·hm-2(F2)。结果表明:W3F1处理较W1F0处理的净光合速率提高了21.22%,叶片瞬时水分利用效率提高了31.18%,光能利用效率提高了19.85%;W3F1处理较W1F0处理无芒雀麦的干草产量提升了28.31%,W3F1和W2F2处理的粗蛋白含量较W1F0处理分别提高了24.32%和29.50%(P<0.05);W3F1处理的土壤速效磷和碱解氮含量较W1F0处理分别提高了13.79%和131.27%。水肥调控对无芒雀麦的光合特性、饲草生产性能及土壤养分均有明显的改善效果。以W3F1处理综合表现最优,即灌溉量为6800 m3·hm-2和施N量为120 kg·hm-2、施P2O5量为100 kg·hm-2时,无芒雀麦具有较高的光合特性及生产性能。

关键词: 无芒雀麦, 水肥调控, 生产性能, 光合特性, 土壤养分

Abstract:

The aim of this work was to determine the effects of different nitrogen-phosphorus and water couplings on soil nutrient contents and the photosynthetic characteristics and forage production performance of Bromus inermis. To this end, a field experiment was conducted using the B. inermis cultivar‘Wusu No. 1’ with a two-factor randomized block design. Irrigation was applied at three levels: W1 (3800 m3·ha-1), W2 (5300 m3·ha-1), and W3 (6800 m3·ha-1); and there were three fertilization treatments: F0 (no fertilizer), F1 (N 120 kg·ha-1+P2O5 100 kg·ha-1), and F2 (N 180 kg·ha-1+P2O5 150 kg·ha-1). The results show that, compared with the W1F0 treatment, the net photosynthetic rate in the W3F1 treatment was increased by 21.22%, the leaf instantaneous water use efficiency was increased by 31.18%, and the light use efficiency was improved by 19.85%. The hay yield of B. inermis in the W3F1 treatment was increased by 28.31% compared with that in the W1F0 treatment. The crude protein content was increased by 24.32% in W3F1 and by 29.50% in W2F2 compared with that in W1F0P<0.05). Furthermore, the soil available phosphorus and alkali-hydrolyzable nitrogen contents in the W3F1 treatment were increased by 13.79% and 131.27%, respectively, compared with those in W1F0. Thus, the regulation of irrigation and fertilization significantly improved the photosynthetic characteristics and forage production performance of B. inermis, and increased the amounts of soil nutrients. The W3F1 treatment demonstrated the best overall performance, indicating that an irrigation amount of 6800 m3·ha-1 combined with fertilization with N at 120 kg·ha-1 and P2O5 at 100 kg·ha-1 resulted in superior photosynthetic characteristics and production performance of B. inermis.

Key words: Bromus inermis, water and fertilizer integration, productivity performance, photosynthetic characteristics, soil nutrients