摘要
试验表明棉花超宽膜栽培的增温效果十分显著,4月至5月,膜下5cm土壤温度较窄膜和宽膜分别提高3.8℃和0.8℃,膜下10cm土壤温度较窄膜和宽膜分别提高3.4℃和0.7℃。超宽膜栽培模式能使棉花播种提前,促进早出苗、生育期加快,对棉花产量的增加有着重要意义。
The soil temperature, growth term and yield of cotton mulched with 3 sizes of plastic film were observed. Com pared with narrow film(60cm wide) and wide film( 140cm wide), the super- wide plastic(225cm) can obviously improve cotton field's soil temperature during April to May, at which there is colder in cotton region in Sinkiang. The result is that 5cm and 10cm soil temperature under film increase 3.8℃ and 0.8℃, and 3.4℃ and 0.7℃ respectively. So the cotton mulched with super-wide film can be planted ahead of schedule, and seedling early and speed up its growth.
出处
《中国农业气象》
CSCD
2003年第3期42-44,共3页
Chinese Journal of Agrometeorology
