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辽宁省朝阳市喀左县属于典型的低山丘陵半干旱区,无霜期150d左右,1季有余,2季不足,因此,为了提高单位面积土地的利用率和产出率,增加单位面积的经济效益,多年来,进行了多种作物的间、套、复种栽培形式的研究,筛选出多个优良组合,为本地区农业结构调整起到了一定的作用,促进了农业经济的发展。西瓜制种、套种标记杂交抗虫棉就是其中之一,该组合667m2产籽棉300kg以上,产西瓜种子23～30kg,每kg籽棉售价6.40元,667m2产值1920.00元以上,每kg西瓜种子售价50.00元,667m2产值1150.00～1500.00元,扣除成本400.00元,667m2纯收入2670.00～3020.00元以上,经济效益非常显著。
Kazuo County, Chaoyang City, Liaoning Province belongs to a typical hilly semi-arid area, frost-free period of about 150d, more than 1 season, less than 2 quarters, therefore, in order to improve the unit area of land utilization and output rate, increase the economic benefits per unit area Over the years, the research on the intercropping, multi-cropping and multi-cropping of various crops has been conducted. A number of excellent combinations have been screened, which have played a certain role in the adjustment of agricultural structure in the region and have promoted the development of agricultural economy. Watermelon seeds and interbreeding markers are one of the hybrid insect-resistant cottons. The combination of 667m2 seed cotton more than 300kg produces 23-30kg watermelon seeds, the price per kg seed cotton is 6.40 yuan, the output value of 667m2 is more than 1920.00 yuan, the price per kg watermelon seeds 50.00 yuan, 667m2 output value of 1150.00 ~ 1500.00 yuan, net of costs 400.00 yuan, 667m2 net income 2670.00 ~ 3020.00 yuan or more, the economic efficiency is very significant.