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豌豆是甘肃中部干旱地区重要的轮作、粮食和饲料作物。近年来豌豆根腐病危害逐渐加重,致使豌豆产量遭受严重损失。本文是在黄绵土上就氮磷钾肥与钼锌锰肥配合施用对豌豆长势及根腐病发病程度的影响进行了试验研究。结果表明,在缺磷、少氮、富钾的黄绵土上单施磷肥或重施磷肥,配合少量氮肥对豌豆长势及豌豆根腐病发病程度的减轻具有良好作用,在农肥配合施磷及氮磷基础上配合施用微量元素Mo,Zn,Mn肥时,以Zn的作用最好,Mo次之。由于氮、磷、钾配施能减轻豌豆根腐病危害,所以目前应多施草木灰、堆肥等富含速效钾的肥料。
Pea is an important crop, food and feed crop in arid regions of central Gansu. Pea root rot disease in recent years gradually increased, resulting in serious losses pea production. This paper is on the loess soil on nitrogen, phosphorus and potassium fertilizers and molybdenum-zinc-manganese fertilizer on pea growth and root rot disease incidence were studied. The results showed that phosphate fertilizer alone or re-application of phosphate fertilizer on phosphorus-deficient, nitrogen-deficient and potassium-rich loamy soil had a good effect on the growth of pea and the alleviation of pea root rot with the application of a small amount of nitrogen fertilizer. Based on the application of trace elements Mo, Zn, Mn fertilizer, Zn is the best, followed by Mo. As nitrogen, phosphorus and potassium can reduce the pea root rot hazards, so the current should be more grass ash, composting and other quick-available potassium fertilizer.