Soil testing and formula fertilization technology refers to the soil fertility status through soil testing. According to the fertilizer characteristics and agricultural production requirements of different crops, the application of organic fertilizer with chemical fertilizer, nitrogen fertilizer, phosphorus and potassium fertilizer, medium and trace elements and other fertilizers is applied in a balanced manner. A scientific fertilization method that improves the utilization of fertilizer nutrients and promotes high-yield, high-quality and high-efficiency agricultural production.
First, technical points.
1. Collection of soil samples Sampling according to different utilization methods and different soil types in paddy fields, dry land, vegetable fields, forest fruit tea fields, etc. Take a sample every 200 acres on the flat land, and take a sample every 100 acres in the mountains. Each soil sample shall be selected from 5-10 points represented by “snake shape†or “plum blossom shape†in the area of ​​the representative area. Each point shall be vertically collected with 0.1~0.2kg soil of plough layer (0-20cm). Mixing is the sample taken, each weighing 0.5-1kg. The sample has a built-in and a plug-in label. Sampling before crop fertilization, the fertilization ditch and acupoint should be avoided for the acupoints and strips.
2. Investigation of basic situation in the field The investigation records the crops, yield levels, fertilization levels, soil types and sampling locations of the sampled fields.
3. Soil sample analysis According to the relevant national standard, line standard or soil analysis technical specifications, the soil nutrient properties to be determined, including soil organic matter, PH, alkali nitrogen, available phosphorus, available potassium, available boron and effective zinc, are analyzed.
4. Formulate a regional rational balanced fertilization program According to the basic information data adopted, establish a basic information database such as soil, fertilizer and water in our district, apply the soil testing formula balanced fertilization expert system software to analyze and process the basic information data, and use the village as a unit to formulate different villages. A balanced fertilization program for different crop types of cultivated land. In view of the current status of soil and fertilizer in cultivated land in our region, the overall balanced fertilization program is to “add organic fertilizer and potash fertilizer, supplement micro-fertilizer such as boron and zinc, and reduce nitrogen and phosphorus fertilizer in moderationâ€.
5, fertilization guidance The farmer's technical training lectures and the issuance of soil testing and fertilizer notice. Before farmers purchase fertilizer and fertilize, they should ask technical personnel to conduct technical training lectures for farmers and village cadres to improve the understanding of the soil-receiving formula fertilization technology and its technicalized products, and recommend the application of soil-measuring formula balanced fertilization program. To make the technology to the farm, to guide farmers to purchase and apply high-quality formula suitable fertilizer (BB fertilizer, compound fertilizer, organic compound fertilizer, etc.). At the same time, set up a field trial demonstration model for farmers to observe and study.
Second, the effect of increasing production and income. According to the soil-measuring formula balanced fertilization method, fertilization can effectively improve soil deficiency, promote soil nutrient balance supply, improve fertilizer utilization and economic benefits, and promote stable and high yield of crops. The utilization rate of fertilizers in the season can be increased by 5% to 15%, and the yield of crops is increased by more than 8%. Generally, the income of the acre is increased by more than 50 yuan.
Third, suitable for promotion areas. Cultivated land, forest fruit tea gardens and pastures in the whole district are suitable for promotion and application.
Source of information: Agriculture Bureau of Shennongjia Forest District
First, technical points.
1. Collection of soil samples Sampling according to different utilization methods and different soil types in paddy fields, dry land, vegetable fields, forest fruit tea fields, etc. Take a sample every 200 acres on the flat land, and take a sample every 100 acres in the mountains. Each soil sample shall be selected from 5-10 points represented by “snake shape†or “plum blossom shape†in the area of ​​the representative area. Each point shall be vertically collected with 0.1~0.2kg soil of plough layer (0-20cm). Mixing is the sample taken, each weighing 0.5-1kg. The sample has a built-in and a plug-in label. Sampling before crop fertilization, the fertilization ditch and acupoint should be avoided for the acupoints and strips.
2. Investigation of basic situation in the field The investigation records the crops, yield levels, fertilization levels, soil types and sampling locations of the sampled fields.
3. Soil sample analysis According to the relevant national standard, line standard or soil analysis technical specifications, the soil nutrient properties to be determined, including soil organic matter, PH, alkali nitrogen, available phosphorus, available potassium, available boron and effective zinc, are analyzed.
4. Formulate a regional rational balanced fertilization program According to the basic information data adopted, establish a basic information database such as soil, fertilizer and water in our district, apply the soil testing formula balanced fertilization expert system software to analyze and process the basic information data, and use the village as a unit to formulate different villages. A balanced fertilization program for different crop types of cultivated land. In view of the current status of soil and fertilizer in cultivated land in our region, the overall balanced fertilization program is to “add organic fertilizer and potash fertilizer, supplement micro-fertilizer such as boron and zinc, and reduce nitrogen and phosphorus fertilizer in moderationâ€.
5, fertilization guidance The farmer's technical training lectures and the issuance of soil testing and fertilizer notice. Before farmers purchase fertilizer and fertilize, they should ask technical personnel to conduct technical training lectures for farmers and village cadres to improve the understanding of the soil-receiving formula fertilization technology and its technicalized products, and recommend the application of soil-measuring formula balanced fertilization program. To make the technology to the farm, to guide farmers to purchase and apply high-quality formula suitable fertilizer (BB fertilizer, compound fertilizer, organic compound fertilizer, etc.). At the same time, set up a field trial demonstration model for farmers to observe and study.
Second, the effect of increasing production and income. According to the soil-measuring formula balanced fertilization method, fertilization can effectively improve soil deficiency, promote soil nutrient balance supply, improve fertilizer utilization and economic benefits, and promote stable and high yield of crops. The utilization rate of fertilizers in the season can be increased by 5% to 15%, and the yield of crops is increased by more than 8%. Generally, the income of the acre is increased by more than 50 yuan.
Third, suitable for promotion areas. Cultivated land, forest fruit tea gardens and pastures in the whole district are suitable for promotion and application.
Source of information: Agriculture Bureau of Shennongjia Forest District
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