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甜菜是块根作物,在生长期间需要磷、钾肥较多,尤其是在生长中后期块根形成到膨大,需磷、钾肥猛增。磷酸二氢钾是一种高效复合肥料,含二氧化磷约50％、氧化钾 30％。根据试验和实践, 在甜菜封垄初期到中期施用这种肥料,块根膨大快, 根冠大,抗性强,特别是有利于糖分的转化。喷洒磷酸二氢钾的甜菜,在同等条件下比不喷洒的可增产 15％左右,含糖量高2％。磷酸二氢钾的用量为每亩150克,兑水20—30斤。在甜菜封垄初期到中期(7月上、中旬),喷洒1—2次,喷两次的第二次要间隔7—10天。在喷洒磷酸二氢钾时要注意:1.要抓住在封垄期这个时机喷洒,因为过早,块根小,
Beet is a tuberous crop that requires more phosphorus and potassium fertilizer during its growth period, especially during its growth. Potassium dihydrogen phosphate is an efficient compound fertilizer containing about 50% phosphorus dioxide and 30% potassium oxide. According to the experiment and practice, applying this kind of fertilizer during the early to mid-term period of beet mulching, the tuberous root swelled fast, the root crown was large, and the resistance was strong, especially conducive to the conversion of sugar. Spraying potassium dihydrogen phosphate beet, in the same conditions than the non-spraying can increase about 15%, 2% higher sugar content. The amount of potassium dihydrogen phosphate per acre 150 grams, watered 20-30 pounds. Beet seal ridge early to mid-term (July, mid), spraying 1-2 times, spray twice the second time interval of 7-10 days. When spraying potassium dihydrogen phosphate should pay attention to: 1. To seize the opportunity to seal the airspeed spraying, because premature, small roots,