In order to obtain high yields of crops, attention should be paid to the ratio of nutrients for grain-fertilization while increasing the amount of fertilization. This is also a fertilizer technology that cannot be ignored. The currently promoted formula fertilization meets the principles and requirements of balanced fertilization. In terms of proportions, the proportion of thorium and phosphorus in farmland is generally 1:0.5. In the Shunyi District of Beijing, after several years of application of diammonium phosphate, the soil available phosphorus levels have risen from ten to over ten milligrams per kilogram of soil. Therefore, according to the new situation of the change of available phosphorus content in the soil, it is scientific that technicians appropriately lower the ratio of nitrogen and phosphorus for fertilization to 1:0.4.
For soils that are severely deficient in phosphorus, it is also advisable to increase the proportion of nitrogen and phosphorus to 1:0.7 by promoting the re-application of phosphate fertilizers. They all adhered to the principle of "looking ahead, looking after, looking at the time". The purpose of adjusting the ratio of nitrogen to phosphorus is to balance nutrients so that the ratio of nutrients is more in line with the nutritional requirements of the crop and the characteristics of soil fertility. This will not only help improve fertilizer utilization, but also conserve nutrient resources, thereby increasing crop yields and improving product quality.
It should be clearly understood that increasing the amount of fertilization can certainly increase crop yields, but adjusting the ratio of nutrients for fertilization can also increase fertility. It is sometimes more important to adjust fertilization rates for high-yielding fields than to increase the amount of fertilizers.
Couples Sex Toys,Sex Toys For Couples,Sex Toy Vibrator,Sex Party Toy
Shenzhen Dongchen Hey E-commerce Co.,Ltd. , https://www.xxsexytoy.com