The unit area value of doublecropping, row cropping was 1.76 and 1.35 times of sole cropping.
复种、间作农田单位面积产值分别为单作一熟农田的1.76和1.35倍。
2
Zhongmian 16 is a new cotton variety with higher and constant yield, which is suitable for cotton-wheat doublecropping system.
中棉16是适于麦棉两熟的丰产、稳产夏播棉新品种。
3
Tillage location test and its cooperative test in the wheat-maize doublecropping field showed that the best time limit for applying disc plough was one or two years.