Ningbo Kyson Cool Electronic Technology Co., Ltd. , https://www.kysoncool.com
The concentrated application of superphosphate is applied as the base fertilizer in the 8 cm deep ditch of the transplanting plant. After the phosphorus fertilizer is applied, the soil is covered by 4 cm to 5 cm, and then the crop is transplanted in the shallow ditch to shorten the distance between the phosphate fertilizer and the crop root to compensate for the mobility of phosphorus. Small weaknesses.
Early application of urea and deep application of roots according to the demand for fertilizer and water in the crop development stage, early application and deep application, the utilization rate is 28% higher than shallow application. The temperature of the shed is 7 days ahead of time at 15~20°C, the shed temperature is 5 days ahead of 20~25°C, and the 8~10cm ditch is opened when topdressing, and the soil is tightly covered after planting. . Watering according to the shed temperature for 5-7 days, so that it has enough time in the soil to fully ammoniaize, so as to facilitate the absorption and utilization of the crop. During the growth period of the crop, the leaf surface can be sprayed with 0.3% urea solution once every 7 days.
Ammonium bicarbonate is an ideal quick-acting fertilizer for the production of winter warm greenhouse vegetables. It is rarely volatilized at 20 °C. After being applied to the soil, it can be decomposed into ammonium ions and adsorbed by the soil, and then slowly released for root absorption. When topdressing, open a 10 cm deep ditch 8 to 10 cm from the root of the crop. After spreading, use a soil cover tightly. The utilization rate can be increased by 10%~30%, which is 10% higher than that of shallow application, and 7.8% higher than that with water.
The main method to improve fertilizer efficiency
The organic fertilizer piled up and cooked as a base fertilizer in the late July, according to the manure, 4000 kg of manure, plus 100 kg of calcium, magnesium and phosphate fertilizer, 400 kg of crushed wheat straw (ç³ ), mixed into a scorpion shape, covered with worn plastic film or used The grass mud is piled up for 30 days, and it becomes a high-quality organic fertilizer.
ã€Comment】 ã€Print this article】 ã€Close this page】 ã€Large, medium and small】