Effect of Different Water Conditions on Plant Growth and Water Utilization of Wheat-corn Two Harvesting System in Henan Province

  • WU Ji-cheng1 ,
  • YANG Yong-hui1 ,
  • ZHENG Hui-ling2 ,
  • HE Fang1
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  • 1. Institute of Plant Nutrition and Resource Environment, Henan Academy of Agricultural Sciences, Zhengzhou 450002, China;
    2. Soil and Fertilizer Station of Henan Province, Zhengzhou 450002, China

Received date: 2009-06-17

  Online published: 2014-10-14

Abstract

To investigate the effect of different water condition on water use of wheat-corn,application of the straw-mulching,nutrition water-retaining agent and different irrigation were carried out to research the wheat-corn growth,yield,soil moisture and water utilization.The result indicated that rational irrigation plays an active role to wheat population dynamics developing and improve wheat spike length,plant height,spike grains,1 000 grains weight and yield.The highest wheat yield was 1 200 m3/hm2 of supplement irrigation,it increased 11.83% comparing to CK.The worst one was 2 400 m3/hm2 of supplement irrigation,it minus 1.0%.The more important thing was the irrigation of wheat could affect the corn yield,which of them improves 7.31% to 16.15% comparing to CK,and the best one was 1 800 m3/hm2 of supplement irrigation.The result of wheat-corn yield stated the best volume of complement irrigation was 1 200 m3/hm2 to 1 800 m3/hm2 under the application of straw-mulching and nutrition water-retaining agent for wheat-corn two crops harvest system in mid-production irrigated zone in Henan province.The changes of soil moisture stated progressively that the straw-mulching and nutrition water-retaining agent application could improve and compensate soil moisture and affect the tendency of crop growth and development in a year.The result of soil nutrition changes stated it's necessary to apply phosphate and ium fertilizer and add straw recession volume for autumn crop.

Cite this article

WU Ji-cheng1 , YANG Yong-hui1 , ZHENG Hui-ling2 , HE Fang1 . Effect of Different Water Conditions on Plant Growth and Water Utilization of Wheat-corn Two Harvesting System in Henan Province[J]. Acta Agriculturae Boreali-Sinica, 2010 , 25(1) : 126 -130 . DOI: 10.7668/hbnxb.2010.01.025

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