覆膜种植夏玉米需水规律的试验研究  

Experiment Research on Crop Water Consumption Pattern with Mulch

作　　者：王炳英[1] 李援农[2] 谢建波[1] 

机构地区：[1]四川内江师范学院,四川内江641112 [2]西北农林科技大学,陕西杨凌712100

出　　处：《水利与建筑工程学报》2007年第3期16-18,共3页Journal of Water Resources and Architectural Engineering

基　　金：国家863计划现代节水农业技术及新产品专项(2002AA2Z4041)

摘　　要：通过大田试验研究了覆膜种植夏玉米需水规律,并计算得出覆膜种植条件下相应作物系数Kc值为0.552~1.184以及作物水分利用效率达16.93 kg/（hm^2·mm）^-1,得出覆膜种植能有效提高作物水分利用效率。为更精确的确定覆膜种植夏玉米灌溉制度提供理论基础,从而为干旱地区发展覆膜节水农业技术提供一定的理论依据。Based on field experiments, the water consumption pattern of the crop （summer maize） with mulch is studied, and through calculations, the corresponding crop coefficient Kc （0. 552-1. 184） is obtained as well as the crop moisture using efficiency [16.93 kg/（hm^2·mm）^-1], thereby it is determined that the mulch could be good for improving the crop moisture using efficiency, which could provide the theory basis for establishing the irrigation schedule of the summer maize with mulch and for developing the mulch agriculture in arid districts.

关 键 词：夏玉米 需水规律 水分利用效率 作物系数 覆膜 

分 类 号：S274[农业科学—农业水土工程]