地膜

mulch film

　　Chinese researchers have bred a new cotton variety that can reduce the usage of mulch film and avoid potential pollution.

　　Mulch film can help preserve heat, inhibite weed growth and prevent pests. However, it has become the main cause of white pollution in cotton fields, seriously affecting the quality of cotton and cultivated land.

　　A research team successfully bred a cotton variety without using mulch film. The variety also features early maturity, low-temperature tolerance and saline-alkali tolerance. Its yield can reach 350 kg per mu on average.

　　中國科研人員培育出新型棉花品種，可減少地膜使用，避免潛在污染。

　　地膜能夠增溫保墑、抑制雜草和防病抗蟲，但是現(xiàn)在已成為棉田白色污染的主要原因，嚴(yán)重影響了棉花和耕地的質(zhì)量。

　　一個(gè)科研團(tuán)隊(duì)成功培育出無需地膜覆蓋的棉花新品種。該品種具有早熟、耐低溫、耐鹽堿等優(yōu)點(diǎn)，平均產(chǎn)量可達(dá)每畝350公斤。