The scientific and rational application of fertilizers to increase the utilization of fertilizers is an important measure for realizing agricultural savings and expenditure increase. However, at present, in agricultural production, due to blind fertilization or improper fertilization methods, the benefit of increasing fertilizer production is reduced, and the cost of agricultural production is increased. According to the survey: The main problems in the current fertilizer application: (a) Heavy chemical fertilizer light organic fertilizer. According to a survey conducted in 1990-1995, the amount of organic fertilizer in Quzhou City was around 34.5 (m3/ha). In 1990, the amount of chemical fertilizer was 636 (kg/ha), and 2.7% (kg) of grain was added per kilogram of chemical fertilizer. In 1995, the amount of chemical fertilizers reached 1405.5 kg/ha, which was 709.8 kg/ha more than in 1990, but only 1.28 kg/kg of fertilizer was added, which was 1.49 kg less than in 1990; (b) Nitrogen and Phosphorus Fertilizer Disproportionate. According to the province nitrogen, phosphorus, potassium 1:O. The appropriate ratio of 65:0.3: N, P and K in Quzhou City were adjusted from 1:0.23:0.05 in 1990 (the same under the same amount) to 1:0.48:0.1 in 1995. As the application amount of phosphate fertilizer is still insufficient, the amount of potash fertilizer is less, and thus the requirements for crop growth and development cannot be met. (3) The input of fertilizer is not balanced. According to the experiments conducted by the Soil and Fertilizer Institute of China Academy of Sciences, the results show that under the same nitrogen fertilizer application, 1kg urea in low-yield soil can increase production by 5.8-6.4kg, which is nearly double that of high-yield field 2.7-3.8kg. In Wuzhou City in 1995, there were no nitrogenous fertilizers and phosphorus fertilizers in the wheat fields of 84,900 hectares and 221,100 hectares, but this part of the wheat fields is a medium-low yield field with large yield potential and high fertilizer utilization rate; (D) Nitrogen fertilizer application, In particular, when nitrogen fertilizer is used as top dressing, the phenomenon of spreading fertilizer is still very serious. At present, the nitrogenous fertilizer and the ammonium bicarbonate in Ganzhou City account for 48% of the actual amount. The application of ammonium bicarbonate is the main reason for the low nitrogen utilization rate. What is the main way to increase fertilizer utilization? First, vigorously promote new high-efficiency fertilizer (a) coating urea coating urea is coated on the surface of ordinary urea by boron, zinc, iron, manganese, molybdenum and other trace elements Colloidal film. Compared with common urea, it has the advantages of slow performance, long-term efficiency and high efficiency. The results of popularization in Luzhou City in the past ten years showed that the application of isonitrogen-coated urea increased the yield by 5.3%-7.6% compared with ordinary urea wheat, and the yield of maize increased by 4.2%-8.7%. %-10.3%, with an average increase in utilization rate of 4.8%-13.5%. In 1997, Zhangzhou City promoted 100,000 hectares, and the total added benefit reached 45.667 million yuan. (2) Long-acting ammonium bicarbonate long-acting ammonium bicarbonate has the advantages of stable properties, long fertilizer efficiency, and low volatility loss. According to the multi-point test, the same amount of long-acting ammonium bicarbonate can increase the production by 8.9% to 24.7% compared with the ordinary ammonium bicarbonate, and the nitrogen utilization rate can increase by 8.3% to 25.1%. At present, the long-term application of ammonium bicarbonate in Ganzhou City only accounts for 3.81% of the amount of nitrogen fertilizer, so it should be vigorously promoted. Second, chemical fertilizers and organic fertilizers are used in conjunction with fertilizers to emphasize the reasons for the use of chemical fertilizers and organic fertilizers: (1) Organic fertilizers can improve soil structure and increase soil potential for yield increase; (2) Organic fertilizers contain various nutrients required for crop growth and development. Potassium and microelements in organic fertilizers, in particular, can play a major role in coordinating the supply of crop nutrients. At present, nearly 80% and 90% of potassium and microelements in fertilization in Zhuozhou City are provided by organic fertilizers. Third, to coordinate the proportion of nitrogen and phosphorus fertilizer balanced fertilizer should be based on soil testing results and different crops need fertilizer levels, determine the proportion of nitrogen and phosphorus fertilizers and dosage, balanced supply of nutrients to the crop, change the status of partial application of nitrogen fertilizer, according to the test: currently suitable for Zhuozhou soil The proportion of N and P fertilizers applied under the conditions (the same amount under pure quantity) is: 1:1 for high-yield wheat fields. 5-0.75, Zhongtian 1:O. 75-1, low-yielding fields 1:1-1.2, corn 1:0.3-0.5, and cotton 1:0.8. Fourth, improve the fertilization method First, promote ammonium bicarbonate as a base fertilizer. In general, the utilization rate can be increased by 20% compared to spraying, and 1kg of ammonium bicarbonate can increase grain by 1.50kg. In addition, the deep application of Ammonium bicarbonate to its pungent smell can also kill off-ground pests. Followed by the popularization of general phosphate fertilizer application or mixing with organic buildings after the application. According to the survey: General phosphate fertilizer application or ditch application, comparable to 10% increase in production. Utilization rate increased by 10%. The production of organic acids from common phosphorus and organic fertilizer stacking can promote the availability of insoluble phosphate in phosphate fertilizers and the fixed phosphorus in soil, and increase the available phosphorus content. General phosphorus fertilizer and organic fertilizer stacking base fertilizer, phosphate fertilizer efficiency can be increased by 30% -40%. The same amount of phosphate fertilizer yield increase effect, the stacking ratio of wheat without stacking increased by 30%, 1 kg of phosphorus yield 1.6kg of wheat. 5. Potash fertilizer and micro-fertilizer should be applied to local conditions in light of the current decline in soil potassium content. Applying potash fertilizer on potassium-deficient soils and high-yield plots and potassium-sensitive crops can increase crop yields. Micro-fertilizer has the characteristics of less dosage, less investment, and high yield, and can be used according to the abundance of local trace elements and crop sensitivity to micronutrient fertilizer. The yield increase of zinc, manganese fertilizer by wheat, corn and cotton in Quzhou can reach 7%-13.5%, and the effect of cotton boron spray and molybdenum-added molybdenum production is also about 1O%. Our X-RAY Machine Products is good in quality and competitive in price. We are manufacturer and supplier X-Ray Machine Products following your specific requirement. We are looking forward to your E-mail and establishing cooperative relationship with you! 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