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Detailed Explanation of Key Technical Points for Soil Testing and Formulated Fertilization in Rice
I. Fertilization Principles 1. Soil testing and formulated fertilization for rice should follow the principles of determining yield target based on soil, determining fertilizer rate based on yield target, supplementing deficient nutrients, combining organic and inorganic fertilizers, and balanced application of nitrogen, phosphorus and potassium. First, soil testing is required. Soil testing is the prerequisite for soil testing and formulated fertilization; through analysis and determination of soil nutrients, the soil nutrient status and fertilizer supply capacity can be accurately grasped, providing a scientific basis for formulated fertilization. Second, a good formula must be prepared. The formula is the key to fertilization. On the basis of soil testing, according to soil characteristics, cultivation practices, crop nutrient requirements, production level and climate conditions,
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Application Methods of Fertilizer Long in Formula Fertilization for Rice
1. Advantages of Fertilizer Long: (1) Long-acting and synergistic effect, extending the fertilizer efficiency period of nitrogen fertilizer by 1 time, with no fertilizer deficiency phenomenon throughout the entire growth period of rice. (2) Improved nitrogen fertilizer utilization rate; deep fertilization overcomes fertilizer loss due to running, overflowing and seepage of field water, reducing fertilizer loss. (3) Enhanced resistance of rice to low temperature, drought and disease erosion. (4) Changes traditional multiple surface fertilization to deep one-time fertilization, saving fertilization labor and costs. (5) Reduced nitrogen fertilizer dosage; according to plots with different fertility, the pure nutrient amount of nitrogen fertilizer can be reduced by 15%-25%. 2. Fertilizer Long
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Detailed Explanation of the Key Points of Formula Fertilization Technology for Cotton
Currently, it is the critical period for cotton land preparation and fertilization, in order to do a good job in cotton formula fertilization and lay the foundation for high quality and high yield. The cotton fertilization technology is now provided to the majority of cotton farmers for reference: 1. Pay attention to the application of farmyard manure: farmyard manure can improve the soil, enrich soil fertility, and contains various nutrient elements needed by crops, providing what crops need for growth. It has complete nutrition and is rich in organic matter, and has a significant effect on improving the soil and increasing the utilization rate of chemical fertilizers. 2. Increase the application of phosphate fertilizer: phosphorus has low mobility in the soil and dissolves and releases slowly,
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Detailed Explanation of Key Technical Points for Formula Fertilization of Cotton
Cotton has an indeterminate growth habit, strong regeneration capacity, highly controllable plant architecture, and a high fertilizer demand. Generally speaking, adequate fertilizer is the foundation for high yield and quality in cotton. Sufficient phosphate fertilizer can promote vigorous growth of cotton plants, increase boll weight, and advance maturity. Potassium fertilizer is a catalyst for various enzymes in plants, and can promote photosynthesis and cellulose synthesis. The fertilization technique for cotton is the eight-character formula fertilization method of "adjust nitrogen, increase potassium, supplement phosphorus, spray boron." Specifically, the following 5 technical measures should be well implemented. 1. Attach importance to the application of farmyard manure
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Detailed Explanation of High-Yield Formula Fertilization Techniques for Ginger
Ginger has a long growth period and a high fertilizer requirement. Under medium fertility conditions, to produce 2500 kg of ginger per mu, 25-40 kg of nitrogen, 10-22 kg of phosphorus (P2O5), and 30-50 kg of potassium (K2O) are needed. The absorption ratio of nitrogen, phosphorus, and potassium is 11:1:16 or 1:0.5:2. In addition, calcium, magnesium, boron, zinc, iron, and other medium and trace...
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How to fertilize ginger for high yield? Detailed explanation of the key points of formula fertilization technology
Ginger has a long growing period and a high fertilizer requirement. Under medium fertility conditions, to produce general 2500 kg of ginger per mu, 25-40 kg of nitrogen, 10-22 kg of phosphorus (P2O5), and 30-50 kg of potassium (K2O) need to be applied. The absorption ratio of nitrogen, phosphorus, and potassium is 11:1:16 or 1:0.5:2. In addition, calcium, magnesium, boron, zinc, iron, and other medium and trace...
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Detailed Explanation of Key Points of Formula Fertilization Technology for Yardlong Beans
1. Symptoms mainly affect leaves, stems and vines, and pods. In the early stage of the disease, purple-brown spots appear on both sides of the leaves, and after expanding they become nearly circular dark brown lesions, 1-2 cm in diameter, with indistinct edges; when humid, the lesion surface is densely covered with sooty mold (especially prominent on the underside of the leaves). In severe cases, it causes early defoliation, leaving only the young leaves at the top, ...
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A Complete Analysis of the Key Technical Points for Soil Testing and Formula Fertilization in Spring Corn
1. Choose suitable varieties. Select suitable and superior varieties according to local conditions; based on heat resources and actual production conditions, choose medium-to-late maturing varieties with a growth period of 120-130 days. Among spring corn varieties with relatively outstanding comprehensive traits, the main one is Nongda 108, etc. 2. Fine land preparation. Spring corn requires deep plowing, and the earlier the autumn plowing...
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What is formula fertilization for yardlong beans? Read this one article to understand
What is formula fertilization for yardlong beans? Please introduce the formula fertilization method for yardlong beans: 1 Nutrient requirements: producing 1000 kg of yardlong beans requires 10.2 kg of pure nitrogen, 4.4 kg of phosphorus pentoxide, and 9.7 kg of potassium oxide. 2 Key fertilization points for a yield of 2000 kg per mu: 2.1 Base fertilizer. Before planting, apply 3000 kg of organic fertilizer per mu, 4...
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Detailed Explanation of Key Technical Points for Soil Testing and Formula Fertilization of Chestnut Trees
1. Main branch balancing (taking the three-main-branch open-center shape as an example). The main branches are the primary framework supporting all the branches. Before pruning, first carefully observe the orientation and growth vigor of the three main branches, have a clear picture in mind, and then make adjustments. For strong and vigorous main branches (with a large thickness ratio), strongly pull them to a wide angle, or use a side branch to replace the main branch extension head, combined with ring barking...
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