Effects of Mize Intercropping with Peanut on Dry Matter Accumulation and Distribution of Maize

[Objective]The research aimed to provide the theoretical base of regulating fertilizer application and realizing high yield of maize intercropping with peanut.[Method] In the field test 2 planting modes of single cropping maize and intercropping of maize and peanut and 2 N levels of 180 and 360 kg/hm2 were set up to study the effects of maize intercropping with peanut on dry matter accumulation and distribution of maize.[Result] Compared with single cropping maize,intercropping maize decreased leaf area per plant and increased leaf area index in each growth stage;the dry matter accumulation in individual plant had a character of slowing initially and quickening lately;the dry matter distributed toward the stem and leaf was reduced and that distributed toward the grain was increased;the maize yield and the harvest index was increased by 38.47%～59.65% and 0.72%～3.02%,resp.Applying N at 360 kg/hm2 increased leaf area per plant,leaf area index and the dry matter accumulation in intercropping maize in each growth stage,promoted the dry matter distribution toward the stem,decreased the dry matter distribution toward the grain and reduced the harvest index.[Conclusion] The dry matter mass in intercropping maize was higher than that in single cropping maize.The intercropping maize could promote the photosynthate distribution toward the grain and increase the harvest index.It is only strengthen the fertilizer and water management in late stage that the high yield of intercropping maize can be obtained.