Traditional Culture Encyclopedia - Weather inquiry - How to solve the problem of crop fertilization in Tangyuan County? What are the countermeasures?

How to solve the problem of crop fertilization in Tangyuan County? What are the countermeasures?

Countermeasures for unreasonable fertilization system. Increase the application amount of organic fertilizer

First of all, we should make full use of the existing fertilizer sources, accumulate scientifically, continue to do a good job in the five-in-one construction, and do a good job in returning straw to the fields in towns and villages where conditions permit. It is forbidden to burn straw. With the help of the mechanical strength of neighboring farms, towns and villages also strive to purchase straw crushing devices in the renewal of agricultural machinery, and the rate of straw returning to the field strives to reach over 95%.

2. Soil testing and formula fertilization

Farmers should improve their awareness of science and technology, accept and popularize this technology. The laboratory of county agricultural technology extension center is responsible for analysis and testing. The best time to take soil is June 65438+1October 1-25 after autumn and before freezing. Each soil sample represents 30-50 mu, and each plot takes 5- 10 points, and each point is dug to a depth of 25-30 cm, and soil is taken vertically and evenly. After winter testing and prescription preparation before planting in spring, farmers can buy fertilizer and apply fertilizer according to the prescription.

3. The trace elements of nitrogen, phosphorus and potassium are combined with microbial fertilizer.

Single application of a certain fertilizer or excessive application of a certain element will reduce the yield, and the best effect can be achieved only when a large number of elements and medium and trace elements are used together. Microbial fertilizer can not be used alone instead of quick-acting fertilizer. Different crops are sensitive to certain elements, such as soybean, wheat, beet and rape, boron, corn, zinc, fruits and vegetables, iron and soybean, molybdenum. Supplementing these elements can achieve twice the result with half the effort.

4. Fertilization methods should be scientific.

Advocate fertilization in autumn. Conditional farmers can apply two-thirds of chemical fertilizer in autumn, another third as seed fertilizer, two-thirds of phosphorus and potassium fertilizer in autumn, one-third as seed fertilizer and two-thirds as topdressing in spring for corn and sugar beet. Soybean can be topdressing with 2% urea solution before or after flowering, spraying foliar fertilizers such as amino acids, hormones and trace elements at the beginning of flowering, and spraying foliar fertilizers such as humic acid and potassium dihydrogen phosphate at the end of flowering or during pod filling.

5. Reasonable rotation and stubble replacement

Adverse effects of soybean planting on ten soil physical and chemical forms;

(1) will lead to the lack of a single nutrient element in the soil, resulting in nutrient imbalance;

(2) It is easy to cause the spread and harm of soil-borne pests and weeds;

(3) Toxic substances in plant residues and root exudates may accumulate in soil, poisoning crops themselves;

(4) lead to poor crop growth, reduced yield and poor quality;

Therefore, reasonable rotation has a good effect on soil structure, porosity, crop root growth, nutrient absorption, pest control and so on, which can give full play to the potential fertility of soil, adjust the nutrient supply to crops and continue the effective decline. The planting structure is adjusted according to wheat-beans-miscellaneous (corn, beet, potato), and can be used for leisure when necessary.