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Detailed Explanation of Key Points for Balanced Fertilization Technology in Cotton
I. Principles of Cotton Fertilization 1. Combined Application of Organic and Inorganic Fertilizers Cotton production should be sustainable. Organic fertilizers have the characteristics of complete nutrients and stable, long-lasting fertilizer efficiency, and cannot be replaced by inorganic fertilizers. Even under conditions where the supply of inorganic fertilizers is relatively sufficient, the role of organic fertilizers should not be neglected. Only through the combined application of both can high and stable yields be achieved. Especially under the current situation of high chemical fertilizer prices, more attention should be paid to increasing the application of organic fertilizers. 2. Balanced Application of Major Elements and Trace Elements Major elements refer to
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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 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 Points for Reasonable Fertilization Techniques for Cotton
Vigorously promoting scientific fertilization techniques for cotton is an important measure to increase the yield per unit area and product quality of cotton fields. The demand of cotton for the three major elements of nitrogen, phosphorus, and potassium and fertilizer application techniques. Field fertilizer efficiency test results prove that for every 100 kg of seed cotton produced, 5.0 kg of pure nitrogen, 1.8 kg of phosphorus pentoxide, and 4.0 kg of potassium oxide are required, with the ratio of nitrogen : phosphorus pentoxide : potassium oxide being 1 : 0.36 : 0.8. Reasonable application of base fertilizer. Base fertilizer should be mainly organic fertilizer, combined with a certain proportion of chemical fertilizer. Generally, per mu, use pig and cattle manure
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Detailed Explanation of Key Points of High-Yield Fertilization Technology for Cotton
Fertilization is the most important and active link in cotton production. In order to obtain high cotton yields, scientific fertilization must be achieved. In villages such as Diandong and Sunwan in Tongshan County, Jiangsu Province, the lint cotton yield per unit area has stably exceeded 1500 kg/ha for more than ten consecutive years. According to surveys, the author summarizes their main experience in fertilization into 3 words, namely "sufficient, early, complete." 1 "Sufficient" Sufficient fertilizer is the foundation of high yield. That is, determine the target yield according to production conditions and management level, and determine sufficient fertilization amount according to the target yield. According to the experience of the above-mentioned high-yield units, to obtain a lint cotton index of
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How to fertilize cotton for high yields? Scientific fertilization methods shared
In cotton cultivation, it is common that plenty of fertilizer is applied, yet cotton yields decline instead. This is because farmers do not understand the fertilizer requirements of cotton and fertilize irrationally, which not only wastes fertilizer but also causes low cotton yields and poor quality. Cotton farmers should grasp the following key points in fertilization: 1. Choose the right fertilizer types: on the basis of applying nitrogen fertilizer well, increase the amount of phosphorus and potassium fertilizer to enhance cotton's disease resistance, prevent premature aging in the late stage, and increase cotton yields. 2. Determine a reasonable fertilization amount: it is best to combine this with soil testing and formula fertilization technology,
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What to do about cotton bud and boll shedding? Scientific fertilization can reduce it
The incoordination between the vegetative growth (growth of roots, stems and leaves) and reproductive growth (growth of buds, bolls and lint) of cotton causes an imbalance in the supply, transport and distribution of photosynthetic products within the cotton plant, which is an important cause of cotton bud and boll shedding. Through comprehensive measures centered on fertilization, controlling cotton growth is an important means of reducing cotton bud and boll shedding. Practice has proved that controlling stem and leaf growth in the early stage of cotton, building a good high-yield framework in the middle stage so that it grows steadily, and preventing premature senescence in the late stage are effective ways to reduce shedding of middle and lower buds and bolls. Therefore, in addition to rational close planting and strengthened water
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Key Points of Cotton Fertilization Technology in the Huang-Huai-Hai Region
1. Main existing problems. In the Huang-Huai-Hai cotton region, nitrogen and phosphorus fertilizer application rates are generally too high, while organic fertilizer application is insufficient; basal fertilizer rates are too high, while topdressing rates are insufficient; deficiencies in the trace elements boron and zinc are relatively common. 2. Fertilization principles. (1) Increase organic fertilizer application and advocate combining organic and inorganic fertilizers. (2) According to soil fertility conditions, appropriately reduce nitrogen and phosphorus fertilizer rates, apply potassium fertilizer reasonably, and pay attention to the combined application of boron and zinc. (3) Apply nitrogen fertilizer in split applications, appropriately increasing the proportion of nitrogen fertilizer applied in the middle growth stage. (4) Fertilizer application should be combined with high-yield and high-quality cultivation techniques.
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Shallow water warming for rice to promote tillering, fertilization with "two preventions" to grow strong seedlings
Due to the impact of unfavorable weather conditions such as low temperatures, frequent rain and insufficient sunlight, rice has been slow to turn green, with yellow leaves, few tillers and delayed growth. For this reason, rice expert Xu Yirong, after an on-site inspection in the Heilongjiang reclamation area, proposed countermeasures such as shallow water warming to promote tillering, fertilization with "two preventions" to grow strong seedlings, and fitness-based disease prevention. First, water layer management must be done well: deep water is a heat-preservation measure, shallow water is a warming measure, and not establishing a water layer is a cooling measure. For plots with deep water formed by rainfall, drainage must be carried out promptly to raise temperature, promote root growth and promote
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Key Technical Points for Pest Control and Fertilization of Wheat in Winter and Early Spring
When temperatures are relatively low in winter and early spring, pest control and fertilization in wheat fields should pay attention to the following two points: For pest control, to control wheat aphids, red spiders and other pests, spraying omethoate is more effective than dimethoate. This is because the insecticidal efficacy of dimethoate against pests decreases significantly as the temperature drops, while the efficacy of omethoate is less affected by temperature and can exert normal insecticidal action at temperatures below 15°C. Similar to omethoate is fenvalerate; the toxic efficacy of fenvalerate at 15°C is instead stronger than at 25°C. Fertilization: For topdressing, applying ammonium bicarbonate is better than urea. Ammonium bicarbonate
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