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我县棉花、春玉米占总耕地面积的47％,小春全是种的预留行,利用率只有50—60％,特别是麦—玉—苕、麦—玉—稻三熟田土,不仅小春空行大,而且大春空行也不小,还有中稻收后到播小春的空隙期,以及玉米收后的红苕行间,过去都未能很好利用。1980年我们在沙溪公社九大队三队做了增问套种绿肥试验,总产粮食242,410斤,比1979年200,435斤,增产41,975斤,增产20.9％;总产值由1979年的36,770.88元增加到46,432.13元,增收9,661.24元;生产费用为14,282.78元,比1979年11,902.65元,降低1.6％。
My county cotton, spring maize accounted for 47% of the total arable land, small spring all kinds of reservation line, the utilization rate is only 50-60%, especially the wheat - jade - Sui, wheat - jade - rice three plots of land, not only small spring Empty line big, but also big spring empty trip is not small, as well as the gap between the recovery of rice to sowing spring gap, and the recovery of maize after the red line, in the past failed to make good use of. In 1980, we conducted an intercropping green manure test in the 3rd Brigade of the 9th Brigade of Shaxi Commune with a total output of 242,410 kilograms of grain, which was 41,475 kilograms more than that of 200,435 kilograms in 1979, an increase of 20.9%. The total output value increased from 36,770.88 yuan in 1979 to 46,432.13 yuan Yuan, an increase of 9,661.24 yuan; production costs 14,282.78 yuan, 11,902.65 yuan in 1979, down 1.6%.