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云南省保山市每年在玉米收获后,种植小春作物青豌豆2.05万hm2,主要分布在半山区和丘陵地带。由于该区域地坡度大,土壤保水性差,往年要到玉米收获后才开始种植青豌豆,此时已进入9月下旬,由于缺乏有效降雨,气温下降,豌豆播种后因水分和温度不足,往往出苗不整齐,长势较弱,从而制约着青豌豆产量的提高。尤其是2009年以来,冬春干旱严重,每季青豌豆只能采摘1~2次,干旱较严重的年份则出现大面积绝收现象。针对这种现象,保山市农业技术综合推广中心经过多年试验研究,特提出抗旱增效的套种栽培模式。在8月中、下旬播种,10月底11月初便可采收鲜荚上市,进入冬季降霜时鲜荚已采收完毕。
Baoshan City, Yunnan Province, corn harvest each year after planting small spring crop peas 20,500 ha, mainly in the Mid-levels and hilly areas. Due to the large slope in this area, the soil has poor water retention. In the past years, green peas began to be planted after the corn was harvested. At this time, it has entered the late September. Due to the lack of effective rainfall and temperature drop, the peas often emerge due to insufficient water and temperature after sowing Unregular, weak growth, which restricts the growth of green peas production. Especially since 2009, winter and spring drought serious, peas per quarter can only pick 1 or 2 times, more serious drought year appears large area of the phenomenon of absolute income. In response to this phenomenon, Baoshan City, Center for Comprehensive Agricultural Technology Extension after years of experimental study, special proposed drought internship intercropping cultivation mode. In mid-August, late sowing, early October early November will be able to harvest fresh pods market, into the winter frost fresh pods have been completed harvesting.