This cropping pattern is grown on about 1.5 million hectares in pakistan .

巴基斯坦约有150万公顷积土地采用这种种植方式。

Difference of arthropod communities in bt rice paddies under different cropping patterns .

不同种植方式下转bt基因水稻对稻田节肢动物群落的影响。

Examples of how intensified cropping systems improve plant nutrition , increase water use efficiency , increase nutrient use efficiency and build soil organic matter are discussed .

讨论了集约种植制度和如何改善植物营养、提高水分利用率、提高养分利用率和积累土壤有机质的实例。

Effects of dimethyl disulfide on microbial communities in protectorate soils under continuous cropping .

二甲基二硫熏蒸对保护地连作土壤微生物群落的影响。

For the sake of further study in mechanism and cure of obstacles of pepper continuous cropping offer academic gist .

在该试验中，化感作用很可能是导致辣椒连作障碍的主要因素之一。