【摘要】 地膜栽培棉花能改善土壤的理化性状和微量生物性状,使土壤增温保墒,容重降低,孔隙度增大;加强土壤微生物活动,使总菌数增加,尤其是细菌数量的增加最为明显;有利于土壤养分的释放及腐殖的形成和积累;覆膜棉花的生长发育加快,从土壤吸收养分的数量大大地增加,产量显著地提高。更多还原

【Abstract】 Cotton Cultivation wihh plastic film can improve the physicochemidal properties of Soil and microbes. It can increase temperature,preserve moisture and decrease the apparent specifie grawity . It also can enlarge the porosity to enhance the activity of soil microbes. The total of microbes is also increased; specially to bacterial content. It is advantageous to release the nutrients to accumulate and form the soil humus. Film Cotton’s growth and development are speed up because it easy to absorb the nutrients from soil so the output increase significantly.更多还原