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磷酸二氢钾为高浓度磷钾二元复合肥料,含P_2O_5 50％、K_2O 33％。为了提高晒烟质量,我们从1983年开始,在昆池区五宝乡七村做了磷酸二氢钾对晒烟根外追肥的肥效试验。经过两年的试验表明,效果较好。一、试验方法;1.试验点设在昆池区五宝乡七村烟农宋兴贵的烟田,面积0.5亩,栽“白花铁杆子”烟900株。2.磷酸二氢钾根外追肥。于晒烟打顶前5～7天以每亩0.4斤兑水100斤喷施叶面一次;打顶后5～7天以同量再喷施一次,以不喷施为
Potassium dihydrogen phosphate is a high concentration of phosphorus and potassium binary compound fertilizer containing 50% P 2 O 5 and 33% K 2 O. In order to improve the quality of sun-cured tobacco, we started from 1983, in the village of Wu Bao Xiang Kunqu District done potassium dihydrogen phosphate on the sun-cured tobacco top-dressing fertilizer test. After two years of tests show that the effect is better. First, the test method; 1 test point is located in Kunchi District Wubao Township tobacco farmers Song Xingui tobacco fields, an area of 0.5 acres, planted “white iron rod” 900 tobacco. 2. potassium dihydrogen phosphate root top dressing. 5 to 7 days before the tobacco smoke topped with 0.4 kg per mu to spray 100 kg of foliar foliage once; topped 5 to 7 days to spray the same amount again to not spray