摘要
对北疆地区粮食作物熟制的研究表明，在露地栽培、８０％保证率下有效积温（≥１０℃）达３６００℃和３４５０℃，无霜期１７４ｄ和１６９ｄ的区域可在早熟小麦后复种特早熟玉米和特早熟大豆；北疆地区发展粮食作物复种的潜力有限，粮食作物种植制度的发展应以一年一熟为主，一年二熟或二年三熟为辅，间、混、套作和复种等多种形式并存。
Muliiple cropping of food crops in North Xinjiang was discussed. The results showed that the region could plant special early maturing matze and special early maturing soybean after early maturing wheat had been harvested under outdoor planting, if its total effective temperature of ≥10℃ up 80% pledge ratio was over 3 600℃ and 3 450℃ as well as its frost free period was over 174 days and 169 days; the potentiality of developing on multiple cropping of food crops in North Xinjiang was very finite, thus the developing direction of plant system on food crops in North Xinjiang was defined that one cropping one year was main, double cropping one year or triple cropping two years was supplemental, intercropping, mixed cropping, relay cropping and multiple cropping etc. mantfold form were simultaneous.
出处
《西北农业学报》
CAS
CSCD
1998年第3期88-89,共2页
Acta Agriculturae Boreali-occidentalis Sinica
关键词
粮食作物
地膜栽培
熟制
北疆地区
Food crops
Multiple cropping
Mulching cultivation
