梯田地集流补灌措施对玉米产量的影响

The effect of auxiliary irrigation on yield of maize in terraced field

在对王家沟流域梯田系统雨水径流资源量化分析的基础上,针对两种耕作方式和5种集流形式设置了10种试验处理和1种对照处理,以此来研究梯田地集流补灌增产效果。结果表明,集流补灌措施能优化雨水资源配置,大幅度提高梯田地作物产量;耕作方式间、补灌形式间及其二者的交互作用都存在显著差异,其中垄作覆膜以1∶7集流形式为最好,丰产沟覆膜以周边补灌形式最好。

Based on the analysis of runoff resource in terraced field system in Wangjiagou watershed, 10 experiment treatments and 1 contrast treatment are designed to study the effect of auxiliary irrigation with collected runoff on yield of maize in terraced field. The results showed that this measure can improve the yield of maize and utilization factor of runoff resource. There exit significant differences of yield among the cropping patterns, the irrigation regimes and their mutual effects. The optimal models are ridge and film covering (1∶7) and highyield ditch and film covering (periphery).\;