不同灌水量对免耕玉米土壤水分和产量的影响

Abstract

Abstract: In order to increase the emergence rate,yield and economical benefit of maize under conservational tillage,the effects of different irrigation quantity before sowing on emergence rate,soil water content,yield and economical benefit were studied.The results showed that：the emergence rate,water content in different soil layers,botanical characters,yield,total income and net income of irrigation with stubble leaving and irrigation with stubble breaking and rotary tillage all higher than that of noirrigation with stubble leaving,and the emergence rate of irrigation with stubble leaving and irrigation with stubble breaking and rotary tillage increased by 5.48% and 6.38% than that of no-irrigation with stubble leaving.The soil water content in different soil layers showed a ＂M＂ trend.The yield of irrigation with stubble leaving and irrigation with stubble breaking and rotary tillage increased by 13.6% and 14.7% than that of no-irrigation with stubble leaving,the net income increased by 11.7% and 9.9% per mu.So irrigation before sowing can increase the emergence rate and yield of maize.

CLC Number:

S513

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Effect of Irrigation Amount on Soil Water and Yield of No-tillage Corn

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