摘要
地膜玉米栽培是防御低温干旱的一项行之有效的措施,地膜具有增温保温作用,以苗期阶段最为显著,这对玉米播种、全苗、壮苗十分有利,为玉米前期生长提供了良好的环境条件,为使玉米积累较多的干物质打下基础。从而提高灌浆速度,延长灌浆时间,增加百粒重,提高产量。
Cultivating maize under plastic film is an effective way against cryogenic and drought.Plastic films can increase the temperature and reserve the humidity,most notably during the seedling period.It is beneficial to maize insemination,full plants and strong seedlings.Therefore,it provides a good environ- ment for maize's prophase growth,and lays the foundation for accumulating more dry matter.Consequent- ly,starching can be fastened in speed and prolonged in time,and increase the weight of a hundred grains of maize,and the overall yield in the end.
关键词
农业气象效应
地膜玉米
土壤热效应
土壤湿度
土壤辐射平衡
Plastic—Film
Maize
Increase of Temperature and Reservation of Humidity
Meteorological Effect
