从1988年开始,我们连续三年在临河市干召庙乡民主村四社进行了小麦套作西瓜的试验,获得了粮瓜双丰收。小麦亩产302.5公斤和353公斤,西瓜亩产3500公斤。西瓜每公斤售价0.22元,亩收益770元。小麦议购价亩均327.6元,两作合计收益1167.6元,实现了千元田。这种套作方式,充分利用了时间差和空间差,变一 Since 1988, for three consecutive years, we conducted a trial in which wheat was planted as a watermelon for four consecutive years in the village of Miaoshu, Miaoxiang, Linhe City, obtaining a double harvest of grain and melon. The output of wheat is 302.5 kilograms and 353 kilograms per mu, and the watermelon is 3500 kilograms per mu. Watermelon price of 0.22 yuan per kilogram, mu income 770 yuan. Wheat purchase price of mu are 327.6 yuan, two for a total income of 1167.6 yuan, to achieve a thousand fields. This set of methods, take full advantage of the time difference and space difference, change one