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我市是旱三熟制种植地区,传统种植是“蚕豆——春玉米——黄赤豆”间套作,由于田间小气候恶化,荫蔽、病虫害严重,产量难于进一步提高,经济效益低.我们在前两年小面积试种“春玉米—秋豌豆—荠菜”模式成功的基础上,1997年在聚阳乡、近海农场等地大面积推广.结果表明,该模式具有操作简单,上下茬无荫蔽、争肥水等矛盾,玉米单产高,青豌豆荚、荠菜市场广、销路好、经济效益高等特点.一般亩产玉米700kg,产值980元,秋豌豆青荚500kg,产值1500元,荠菜200kg,产值800元,合计产值3280元,亩纯收入2500元,是传统间套作种植产值的3倍.
The city is a three-year planted dry farming areas, the traditional planting is “broad bean - spring corn - yellow red bean” intercropping, due to the deterioration of the microclimate, shade, pests and diseases seriously, the yield is difficult to further improve, low economic efficiency.We are in the first two Based on the success of small-area trial planting of spring corn-autumn pea-shepherd's purse, the model was popularized in Juyang Township and offshore farm in 1997. The results showed that this model has the advantages of simple operation, Fertilizer and other contradictions, corn yield is high, green peas pods, shepherd's purse market is wide, sales are good, high economic efficiency.General per-mu yield of corn 700kg, the output value of 980 yuan, autumn pea pod 500kg, output value 1500 yuan, shepherd's purse 200kg, output 800 yuan , The total output value of 3280 yuan, 2,500 yuan of pure net income, is the traditional intercropping 3 times the output value of planting.