花生叶面喷肥的增产效应

Effect of Foliar Spraying of Fertilizer on Yield of Peanut Crop

试验得出,花生在开花及荚果膨大期进行叶面喷肥,采用N、P、K、B肥料元素混合喷施,能有效地提高花生植株的光合效率,增加干物质含量,使植株个体发育良好,喷施后单株结荚多2～4个,饱果率提高11.3%～20.2%,百果重提高9.4%～19%,喷肥区比未喷的667m2增产23.1%,增收90.43元,是一项投入少、见效快的农业实用技术。

The result of the field experiment of peanut crop indicated that taking foliar spraying of N,P,K,B fertilizers on peanut plants at both stages of blooming and podfilling, the photosynthesis efficiency and dry substance can be increased. As compared with the nonspraying plot, the pods number per plant increased by 2～4 pods; the rate of plump seed, weight per 100 pods and yield per 667m2 increased by 11.3%～20.2%, 9.4%～19.0%, and 23.1% respectively. The income rose 90.43 yuan for each 667m2. The foliar spraying of fertilizer is a practical technique of saving cost and getting profit.