Acta Prataculturae Sinica ›› 2026, Vol. 35 ›› Issue (10): 61-78.DOI: 10.11686/cyxb2025443
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Min-hua YIN1(
), Wen-jing CHANG1, Jian-xin YIN2, Ya-ya DUAN1, Hai-yan LI1, Yan-biao WANG1, Yan-xia KANG1(
), Yan-lin MA1, Ya-yu WANG1, Guang-ping QI1
Received:2025-10-23
Revised:2026-01-12
Online:2026-10-20
Published:2026-09-09
Contact:
Yan-xia KANG
Min-hua YIN, Wen-jing CHANG, Jian-xin YIN, Ya-ya DUAN, Hai-yan LI, Yan-biao WANG, Yan-xia KANG, Yan-lin MA, Ya-yu WANG, Guang-ping QI. Optimization of alfalfa pasture planting patterns and nitrogen fertilizer management to reduce greenhouse gas emissions[J]. Acta Prataculturae Sinica, 2026, 35(10): 61-78.
种植模式 Cropping patterns | 氮肥运筹Nitrogen fertilizer management | ||
|---|---|---|---|
氮肥类型 Nitrogen fertilizer types | 施氮水平 Nitrogen application levels (kg·hm-2) | 三茬施用比例 Application rate among three crops | |
平作Flat planting (FP) | 尿素Urea (U) | 80 (U1) | 6∶2∶2 |
| 160 (U2) | 6∶2∶2 | ||
| 240 (U3) | 6∶2∶2 | ||
| 控释氮肥Controlled release nitrogen fertilizer (C) | 80 (C1) | 1∶0∶0 | |
| 160 (C2) | 1∶0∶0 | ||
| 240 (C3) | 1∶0∶0 | ||
| 不施氮肥 No nitrogen fertilization (N0) | 0 (N0) | - | |
| 垄覆生物降解地膜种植Ridge-furrow planting with biodegradable film mulching over ridge (BM) | 尿素Urea (U) | 80 (U1) | 6∶2∶2 |
| 160 (U2) | 6∶2∶2 | ||
| 240 (U3) | 6∶2∶2 | ||
| 控释氮肥Controlled release nitrogen fertilizer (C) | 80 (C1) | 1∶0∶0 | |
| 160 (C2) | 1∶0∶0 | ||
| 240 (C3) | 1∶0∶0 | ||
| 不施氮肥 No nitrogen fertilization (N0) | 0 (N0) | - | |
| 垄覆普通地膜Ridge-furrow planting with plastic film mulching over ridge (PM) | 尿素Urea (U) | 80 (U1) | 6∶2∶2 |
| 160 (U2) | 6∶2∶2 | ||
| 240 (U3) | 6∶2∶2 | ||
| 控释氮肥Controlled release nitrogen fertilizer (C) | 80 (C1) | 1∶0∶0 | |
| 160 (C2) | 1∶0∶0 | ||
| 240 (C3) | 1∶0∶0 | ||
| 不施氮肥No nitrogen fertilization (N0) | 0 (N0) | - | |
Table 1 Experimental design
种植模式 Cropping patterns | 氮肥运筹Nitrogen fertilizer management | ||
|---|---|---|---|
氮肥类型 Nitrogen fertilizer types | 施氮水平 Nitrogen application levels (kg·hm-2) | 三茬施用比例 Application rate among three crops | |
平作Flat planting (FP) | 尿素Urea (U) | 80 (U1) | 6∶2∶2 |
| 160 (U2) | 6∶2∶2 | ||
| 240 (U3) | 6∶2∶2 | ||
| 控释氮肥Controlled release nitrogen fertilizer (C) | 80 (C1) | 1∶0∶0 | |
| 160 (C2) | 1∶0∶0 | ||
| 240 (C3) | 1∶0∶0 | ||
| 不施氮肥 No nitrogen fertilization (N0) | 0 (N0) | - | |
| 垄覆生物降解地膜种植Ridge-furrow planting with biodegradable film mulching over ridge (BM) | 尿素Urea (U) | 80 (U1) | 6∶2∶2 |
| 160 (U2) | 6∶2∶2 | ||
| 240 (U3) | 6∶2∶2 | ||
| 控释氮肥Controlled release nitrogen fertilizer (C) | 80 (C1) | 1∶0∶0 | |
| 160 (C2) | 1∶0∶0 | ||
| 240 (C3) | 1∶0∶0 | ||
| 不施氮肥 No nitrogen fertilization (N0) | 0 (N0) | - | |
| 垄覆普通地膜Ridge-furrow planting with plastic film mulching over ridge (PM) | 尿素Urea (U) | 80 (U1) | 6∶2∶2 |
| 160 (U2) | 6∶2∶2 | ||
| 240 (U3) | 6∶2∶2 | ||
| 控释氮肥Controlled release nitrogen fertilizer (C) | 80 (C1) | 1∶0∶0 | |
| 160 (C2) | 1∶0∶0 | ||
| 240 (C3) | 1∶0∶0 | ||
| 不施氮肥No nitrogen fertilization (N0) | 0 (N0) | - | |
| 年份 Year | P | L | T | P×L | P×T | L×T | P×L×T |
|---|---|---|---|---|---|---|---|
| 2023 | 455.30** | 108.44** | 178.25** | 5.28* | 1.41* | 0.71ns | 0.18ns |
| 2024 | 232.63** | 377.10** | 238.99** | 2.59* | 13.61** | 28.50* | 0.58ns |
Table 2 Analysis of variance for cumulative CO2 emissions in alfalfa grasslands under different planting patterns and nitrogen managements
| 年份 Year | P | L | T | P×L | P×T | L×T | P×L×T |
|---|---|---|---|---|---|---|---|
| 2023 | 455.30** | 108.44** | 178.25** | 5.28* | 1.41* | 0.71ns | 0.18ns |
| 2024 | 232.63** | 377.10** | 238.99** | 2.59* | 13.61** | 28.50* | 0.58ns |
| 年份 Year | P | L | T | P×L | P×T | L×T | P×L×T |
|---|---|---|---|---|---|---|---|
| 2023 | 222.38** | 207.56** | 8.60* | 57.26** | 52.76** | 37.24** | 1.72ns |
| 2024 | 65.79** | 65.82** | 31.27** | 6.49* | 1.05ns | 9.45** | 1.28ns |
Table 3 Analysis of variance for cumulative CH4 absorption in alfalfa grasslands under different planting patterns and nitrogen managements
| 年份 Year | P | L | T | P×L | P×T | L×T | P×L×T |
|---|---|---|---|---|---|---|---|
| 2023 | 222.38** | 207.56** | 8.60* | 57.26** | 52.76** | 37.24** | 1.72ns |
| 2024 | 65.79** | 65.82** | 31.27** | 6.49* | 1.05ns | 9.45** | 1.28ns |
| 年份 Year | P | L | T | P×L | P×T | L×T | P×L×T |
|---|---|---|---|---|---|---|---|
| 2023 | 33.61** | 131.28** | 44.03** | 0.04ns | 0.17ns | 10.92* | 0.51ns |
| 2024 | 82.33** | 229.04** | 84.36** | 4.48ns | 0.14ns | 17.24** | 0.15ns |
Table 4 Analysis of variance for cumulative N2O emissions in alfalfa grasslands under different planting patterns and nitrogen managements
| 年份 Year | P | L | T | P×L | P×T | L×T | P×L×T |
|---|---|---|---|---|---|---|---|
| 2023 | 33.61** | 131.28** | 44.03** | 0.04ns | 0.17ns | 10.92* | 0.51ns |
| 2024 | 82.33** | 229.04** | 84.36** | 4.48ns | 0.14ns | 17.24** | 0.15ns |
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