Effects of Base Topdressing Ratio of Nitrogen Fertilizer on Nitrogen Metabolism and Use Efficiency of Spring Wheat Under Drip Irrigation

WANG Haiqi; HUANG Yihua; JIANG Guiying; LIU Yuting; CHE Ziqiang

doi:10.13870/j.cnki.stbcxb.2022.01.038

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Effects of Base Topdressing Ratio of Nitrogen Fertilizer on Nitrogen Metabolism and Use Efficiency of Spring Wheat Under Drip Irrigation

更新时间：2025-03-12

- Effects of Base Topdressing Ratio of Nitrogen Fertilizer on Nitrogen Metabolism and Use Efficiency of Spring Wheat Under Drip Irrigation
- Vol. 36, Issue 1, Pages: 297-306(2022)
- 作者机构：
  
  石河子大学农学院,新疆,石河子,832000
- 作者简介：
- 基金信息：
- DOI：10.13870/j.cnki.stbcxb.2022.01.038
  CLC： S311;S512.1
- Published：2022
- 稿件说明：
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WANG Haiqi, HUANG Yihua, JIANG Guiying, et al. Effects of Base Topdressing Ratio of Nitrogen Fertilizer on Nitrogen Metabolism and Use Efficiency of Spring Wheat Under Drip Irrigation[J]. 2022, 36(1): 297-306.
DOI：

WANG Haiqi, HUANG Yihua, JIANG Guiying, et al. Effects of Base Topdressing Ratio of Nitrogen Fertilizer on Nitrogen Metabolism and Use Efficiency of Spring Wheat Under Drip Irrigation[J]. 2022, 36(1): 297-306. DOI： 10.13870/j.cnki.stbcxb.2022.01.038.

摘要

探讨减氮模式下氮肥不同基追比例对滴灌春小麦氮代谢关键酶活性、氮素积累转运、产量及氮肥利用率的影响

为新疆麦区滴灌春小麦高效生产提供科学依据。以中筋型"新春6号"(XC 6)和强筋型"新春37号"(XC 37)小麦品种为材料

设置0∶0

2∶8

3∶7

4∶6

5∶5共5种氮肥基追比处理

研究氮肥基追比例对滴灌春小麦氮代谢及氮肥利用率的影响。结果表明: 同一品种下

随氮肥基追比例的增加

氮代谢酶活性、氮素积累、氮肥利用率(NUE)、籽粒产量及蛋白质产量均呈现先升高后降低的趋势

花前氮素转运率、花前氮素贡献率及氮肥生理利用效率(NPE)则呈相反变化

且同一氮肥基追比例下

上述指标均表现出XC 37高于XC 6。品种与氮肥基追比互作表现为

花前氮素转运量、花后氮素积累量、花后氮素贡献率、NUE、氮肥农学利用效率(NAE)、氮肥偏生产量(NPEP)、氮收获指数(NHI)、籽粒产量、蛋白质产量在3∶7处理下分别比其余处理提高了1.51%~34.93%

10.62%~83.63%

4.82%~25.38%

8.00%~45.11%

6.97%~19.84%

2.00%~5.80%

7.95%~40.38%

1.44%~84.86%

4.44%~98.04%。相关分析表明

NUE与蛋白质产量、籽粒产量、植株氮素积累量、GS、NR均呈显著正相关。说明在氮肥基追比例为3∶7时

由于氮代谢酶活性增强

有利于植株氮素积累

促进籽粒产量、蛋白质产量及氮素利用率的协同提高。

Abstract

To investigate the effects of different base topdressing rates of nitrogen (N) fertilizer on the activity of key enzymes of N metabolism

N accumulation and transport

yield and N fertilizer utilization in drip irrigated spring wheat under N reduction mode

and to provide a scientific basis for the efficient production of drip irrigation spring wheat in Xinjiang wheat area

with medium gluten Xinchun 6 (XC 6) and strong gluten Xinchun 37 (XC 37) as materials

five nitrogen base topdressing ratios of 0∶0

2∶8

3∶7

4∶6 and 5∶5 were set to study the effects of nitrogen base topdressing ratio on nitrogen metabolism and nitrogen use efficiency of spring wheat under drip irrigation. The results showed that

with increasing N fertilizer basal rate

nitrogen metabolism enzyme activity

nitrogen accumulation

nitrogen fertilizer utilization rate (NUE)

seed yield and protein yield all tended to increase and then decrease

while pre-flowering nitrogen translocation rate

pre-flowering nitrogen contribution rate

and nitrogen fertilizer physiological utilization efficiency (NPE) showed the opposite trend

and the above parameters were higher in XC 37 than XC 6 at the same N fertilizer basal rate. The interact of variety and N fertilizer basal chase ratio showed that pre-flowering N translocation

post-flowering N accumulation

post-flowering N contribution

NUE

N fertilizer agronomic use efficiency (NAE)

N fertilizer partial production (NPEP)

N harvest index (NHI)

seed yield

and protein yield were increased by 1.51%~34.93%

10.62%~83.63%

4.82%~25.38%

8.00%~45.11%

6.97%~19.84%

2.00%~5.80%

7.95%~40.38%

1.44%~84.86%

4.44%~98.04%

respectively

under 3∶7 treatment compared to the rest of the treatments. Correlation analysis showed that NUE was significantly and positively correlated with protein yield

seed yield

plant nitrogen accumulation

and NR. Therefore

a 3∶7 ratio of nitrogen fertilizer base topdressing could improve plant nitrogen accumulation and promote seed yield

protein yield and nitrogen utilization based on the increase of nitrogen metabolizing enzyme activity.

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