摘要
二元组合覆盖玉米是用地膜和秸秆两种材料组合的一种全覆盖模式,它将地膜覆盖的增温保墒和秸秆覆盖的降温保墒有机地结合起来,减少了秸秆前期降温和地膜后期增温的弊端,具有明显的土壤环境效应和生物学效应,有效地改善了土壤生态条件,调控了玉米的生长发育进程和地上部与地下部的协调生长,提高了玉米对氮磷钾的吸收和干物质积累与灌浆强度,是解决黄土高原残塬沟壑区水土流失的一项措施。
T.M.M.(two materials mulched)is a new mulched pattern that plastic film and straw are used as mulched materials.It combines increasing temperature effect of plastic film mulched with decreasing temperature effect of straw mulched.There are distinct soil environmental effect and biological effect.The growth and development of maize is promoted greatly and controlled properly.Assimllate accumulation and N.P.K.nutrient absorption and distribution in maize plant are promoted under T.M.M.condition.T.M.M.is a outstanding cultivation technique of maize on dry land and a strategic measure of preventing soil erosion on loess plateau.
出处
《山西农业科学》
1993年第3期45-51,共7页
Journal of Shanxi Agricultural Sciences
