Influences of different irrigation schedules on growing status of maize with drip irrigation under plastic film.
Wei YongHua, Chen Li-jun · Dongbei Nongye Daxue xuebao · 2011
The wind-blown soil region of western Heilongjiang Province is an important commodity grain base in our country.According to the characteristics of the resources and the natural disasters,based on experimentations in the field,the influence of different water supplies on plant height,leaf area,dry matter accumulation and economic coefficient were analyzed to obtain the optimal water supply stage and the water quantity of maize.The results showed that qualified water supply at the former stages with the drip irrigation under plastic film could improve the growing condition of maize to the aim of high and stable yield.The growth trends of maize had been significantly different with the different water supplies at the growing stage.Under the condition of the same water supply,the effect of water supply in the jointing stage was the most significant,and the later seedling stage was in the second and the three leaves stage was at last.