摘要
采用正交试验方法,对膜上灌玉米灌水次数、灌溉定额和氮磷比三因素组合方案进行了试验研究。试验结果表明:灌水次数2次、灌溉定额为1200 m3/hm2、氮磷比为2.5为最优组合方案,这为膜上灌玉米节水节肥提供了理论依据。
An optimize composition experiment for three factors, namely the irrigation quota, times of irrigation, ration of N and P fertilizer for the yield of corn, was carried out by using cross experiment methods. The result indicated that the optimum combination of the three factors was at 2 times of irrigation, irrigation quota 80 m^3/667 hm^2, N/P ratio 2.5. The result provided the theoretic perspective for fertilizer and water saving of corn under film hole irrigation.
出处
《节水灌溉》
北大核心
2009年第12期12-13,共2页
Water Saving Irrigation
基金
国家高技术研究发展计划("863"计划)"精细地面灌溉技术研究"(2002AA2Z4041)
宁夏大学自然科学基金(ZR0630)
关键词
膜上灌
玉米
节水灌溉制度
氮磷比
film hole irrigation
corn
water-saving irrigation schedule
ration of N and P
