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为了充分利用光能、季节,挖掘土壤增产潜力,近几年,我州小麦玉米小带田不断扩大,增产效果显著。我所一九七五年试种的一亩一分八厘小麦带玉米间种黄豆小带田,收获小麦543斤,玉米1226斤,黄豆40斤,米豆37斤,合计总产1846斤,平均亩产1565斤。广河县黄赵家公社谢家四队种植的二亩四分小带田,收小麦954斤,玉米2543斤,米豆58斤,平均亩产1481斤,比单种小麦或玉米增产百分之十至七十。但是随着耕作制度的改革,农作物的害虫发生规律也相应的起了变化。两年来据我们调查,发现粘虫在大田玉米和小带田玉米上,虫口密度以
In order to make full use of light energy, season, dig soil potential yield, in recent years, the state of wheat and corn fields in my area has been expanding, yield significant results. I am trying in 1975 to cultivate a mu of cents and eight cents of wheat with corn interspecific soybean belt, harvest 543 pounds of wheat, corn 1226 pounds, 40 pounds of soybeans, rice beans 37 pounds, a total of 1846 pounds, The average yield of 1565 pounds. Guanghe County, Huang Zhaojia commune Xie four four teams planted four acres of small farmland, received wheat 954 pounds, 2543 pounds of corn, 58 pounds of beans, the average yield of 1481 pounds, more than a single kind of wheat or corn yield Ten to seventy. However, with the reform of farming system, the pest occurrence patterns of crops also changed accordingly. According to our investigation over the past two years, we found that the armyworm population in field corn and small field corn, insect population density