Effects of Waterlogging Stress on Nitrogen and Phosphorus,Potassium Nutrition in Winter Wheat at Different Stages

WEI Feng-zhen; LI Jin-cai; YIN Jun; WANG Yong-hua; QU Hui-juan

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Effects of Waterlogging Stress on Nitrogen and Phosphorus,Potassium Nutrition in Winter Wheat at Different Stages

更新时间：2024-11-07

- Effects of Waterlogging Stress on Nitrogen and Phosphorus,Potassium Nutrition in Winter Wheat at Different Stages
- Vol. 20, Issue 3, Pages: 162-165(2006)
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  CLC： S512.11S158.3
- Published：2006
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WEI Feng-zhen, LI Jin-cai, YIN Jun, et al. Effects of Waterlogging Stress on Nitrogen and Phosphorus,Potassium Nutrition in Winter Wheat at Different Stages[J]. 2006, 20(3): 162-165.
DOI：

WEI Feng-zhen, LI Jin-cai, YIN Jun, et al. Effects of Waterlogging Stress on Nitrogen and Phosphorus,Potassium Nutrition in Winter Wheat at Different Stages[J]. 2006, 20(3): 162-165. DOI：

摘要

运用盆栽模拟土壤渍水逆境试验，研究不同生育时期根际土壤渍水逆境对不同小麦品种N、P、K素吸收、运转和分配的影响。结果表明，根际土壤渍水逆境对不同小麦品种N、P、K素吸收的影响有异;不同生育时期根际土壤渍水逆境显著影响根系对N、P素的吸收、运转与分配，以孕穗期渍水逆境影响最大，其次为灌浆期和拔节期，而不同生育时期根际土壤渍水逆境对K素的吸收影响较小。孕穗期以前浈水逆境主要影响小麦根系对N，P，K案的吸收．对N、P、K素在小麦体内的运输和分配影响较小；灌浆期渍水逆境不仅影响根系对N、P、K素的吸收．同时也影响N、P素在地上部各器官中的运转和分配，但对K素在小麦体内的运转和分配影响较小。因此，基肥中施足P肥和K肥，拔节孕穗期重施速效N肥，灌浆期叶面喷施KH2PO4对于培育壮秆大穗，减轻小麦溃害，提高受渍小麦籽粒产量具有非常重要的实际意义。

Abstract

Experiments were carried out on the experiment farm of Anhui agricultural university with pot culture from 2003 to 2005.Effects of waterlogging at different stages on N

P and K nutrition metabolism were studied applying simulation waterlogging method.The results showed that waterlogging at different stages significantly influenced N and P nutrition absorption content and transportation and distribution ratio and less influenced K nutrition of different cultivars

injury degree of waterlogging at booting stages more than other stages.Waterlogging before booting stage mainly influenced N and P and K nutrition absorption content and less influenced transportation and distribution

waterlogging at filling stages mainly influenced N and P and K nutrition absorption content and N and P nutrition transportation and distribution ratio and less influenced K nutrition transportation and distribution ratio of different organ.So applying rich P and K fertilizer at basal fertilizer and rapidly available N fertilizer form jointing stage to booting stage and KH_2PO_4 at filling stage and it is very important that to culture strong stem and large spike and to reduce waterlogging injury and to increase grains yield of waterlogging wheat.

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