The second, devoting efforts to popularize multiple cropping in one year, stereoscopic planting and the high efficient planting pattern in protected cultivation areas.
二是大力推广一年多熟立体种植和保护地高效栽培种植模式；
2
Increasing planting early crops on the wetland is an effective measure to fully utilize the spring season resources of temperature or light and raise multiple crop index.
攀西地区下湿田增种早春作物，是充分利用春季光温资源，提高复种指数的有效措施。
3
The variation of the amount of hybrid sweet sorghum with harvest by stages, multiple cropping of wheat stubble, and usual planting with different kinds of fertilization was studied.