论文部分内容阅读
根据陇中半干旱地区定西县的热量、水分、养分、光照等自然条件对旱地地膜玉米种植的满足程度,结合实践认为,地膜玉米在该区域种植是可行的,但必须以选用早熟抗旱优良杂交种和科学种植管理为前提。并提出了本区域地膜玉米种植的主要技术措施。一、地膜玉米种植的发展地膜覆盖栽培技术是我国70年代末引进的一项先进的农业增产技术。其中玉米地膜覆盖栽培技术目前已成为我国农业生产中发展最快的一项增产技术,正迅速在全国大面
According to the satisfaction degree of natural conditions such as heat, moisture, nutrients and light in semi-arid area of semi-arid area in semi-arid area of Longzhan, the planted maize in this area is feasible. Species and scientific planting management as a precondition. And put forward the main technical measures of maize planting in this area. First, the development of plastic film mulching Plastic film mulching cultivation technology is introduced in late 70s of an advanced agricultural technology. One of the plastic film mulching cultivation technology has now become China’s agricultural production in the fastest growing a production technology, is rapidly in the country large