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河北省的邢台、沧州、衡水等棉花主产区都属于二季作区,这里共有国家优质棉基地县17个,种植棉花面积总和占到了全省种植面积的63%,总产量接近全省棉花总产量的75%。但近几年因为单一种植棉花效益不高,种植棉花积极性逐渐下降,面积逐年缩小。因此我们从2007年以来探索棉薯套作栽培技术。此技术要求马铃薯使用地膜3月5日播种,事先留好行距,4月20日以后播种棉花,马铃薯比棉花早播种45d,6月5日马铃薯收获
Hebei, Xingtai, Cangzhou, Hengshui and other major cotton producing areas belong to the second quarter for the district, where a total of 17 high-quality cotton base counties nationwide, the total area of cotton planting accounted for 63% of the province’s planted area, the total output close to the province’s total cotton 75% of production. In recent years, however, because of the low benefit of monoculture cotton, the enthusiasm of planting cotton has gradually decreased and the area has been reduced year by year. That’s why we have been exploring cotton crop cultivation techniques since 2007. This technology requires the use of plastic film on March 5, potato sowing, keeping the line spacing in advance, after April 20 sowing cotton, cotton sowing 45d earlier than cotton, June 5 potato harvest