Effects of Water and Nitrogen Interaction on Physiological and Photosynthetic Characteristics and Yield of Winter Wheat

WANG Lei; DONG Shuting; LIU Peng; ZHANG Jiwang; ZHAO Bin

doi:10.13870/j.cnki.stbcxb.2018.03.045

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Effects of Water and Nitrogen Interaction on Physiological and Photosynthetic Characteristics and Yield of Winter Wheat

更新时间：2025-03-12

- Effects of Water and Nitrogen Interaction on Physiological and Photosynthetic Characteristics and Yield of Winter Wheat
- Vol. 32, Issue 3, Pages: 301-308(2018)
- 作者机构：
  
  山东农业大学农学院, 作物生物学国家重点实验室,山东,泰安,271018
- 作者简介：
- 基金信息：
- DOI：10.13870/j.cnki.stbcxb.2018.03.045
  CLC：
- Published：2018
- 稿件说明：
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WANG Lei, DONG Shuting, LIU Peng, et al. Effects of Water and Nitrogen Interaction on Physiological and Photosynthetic Characteristics and Yield of Winter Wheat[J]. 2018, 32(3): 301-308.
DOI：

WANG Lei, DONG Shuting, LIU Peng, et al. Effects of Water and Nitrogen Interaction on Physiological and Photosynthetic Characteristics and Yield of Winter Wheat[J]. 2018, 32(3): 301-308. DOI： 10.13870/j.cnki.stbcxb.2018.03.045.

摘要

针对黄淮海地区农业生产中存在的水资源供应短缺，肥料利用率低等问题，设计试验研究水氮互作对冬小麦光合生理特性和产量的影响，为黄淮海地区高效利用水氮资源提供理论依据。2015-2017年以石麦15（SM15）为材料，利用水肥渗漏研究池，设计2个供水量水平（500，250 mm）；2个施氮量水平（90，180 kg/hm2）；2个氮肥类型（无机肥尿素，有机肥牛粪）。结果表明：2年试验内冬小麦旗叶光合生理特性变化规律相似，各处理的冬小麦旗叶光合速率，蒸腾速率，单叶水分利用效率在生育期内均呈现先上升后下降的趋势。水氮互作对小麦旗叶光合速率影响显著，W1（供水量500 mm）处理的旗叶光合速率明显高于W2（供水量250 mm）处理，施氮肥180 kg/hm2处理的旗叶光合速率明显高于施氮肥90 kg/hm2的处理，与施用无机肥相比，施用有机肥可保证冬小麦生育后期维持较高的旗叶光合速率。2年试验干物质积累量最多、产量最高的处理为W1M1（供水量500 mm，施有机氮肥180 kg/hm2）。综合冬小麦光合生理特性，籽粒产量，本试验条件下有机肥增产效果优于无机肥，冬小麦生育期供水量500 mm，施有机氮肥180 kg/hm2时冬小麦旗叶光合生理特性较优，获得较高产量。

Abstract

Water resource deficiency and low nitrogen use efficiency are very common in Huang Huai-Hai Plain (HHP). In order to deal with these problems

the experiment

using SM15 as the tested winter wheat cultivar

with different water supplies and nitrogen fertilizer combinations (two types of fertilizers

two application rates

two water supply levels)

was carried out in the lysimeters in 2015-2017. The photosynthetic characteristics of all the treatments showed the same variation pattern:the flag leaf photosynthetic rate

transpiration rate and leaf water use efficiency (LWUE) increased firstly and then decreased. The flag leaf photosynthetic rate of W1 water supply quantity of 500 mm was significantly higher than that of W2 (water supply quantily of 250 mm)

and the flag leaf photosynthetic rate of 180 kg/hm2 was significantly higher than that of nitrogen application of 90 kg/hm2. Cormparing with the application of inorganic fertilizers

the application of organic fertilizer could ensure the higher growth rate of flag leaf photosynthesis. The grain yield and dry matter accumulation in the W1M1 (water supply quantity of 500 mm and application of organic manure with about 180 kg/hm2 treatment) were significantly higher than those in other treatments in the two growing seasons. According to the photosynthetic characteristics and grain yields of winter wheat

the experiment areas with organic fertilizers got higher yield and the rate of increasing production than those with inorganic. W1M1 was the best treatment

which had the highest yield and better photosynthetic characteristics.

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