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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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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 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 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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Do different cotton varieties require different fertilization methods, and what are the similarities and differences?
Recently, when the author visited cotton-producing areas in counties and cities such as Tianmen, Hanchuan, Jingshan, and Jianli, as well as Huarong, Anxiang, and Nanxian in Hunan Province, many farmers asked about cotton fertilization techniques. They often regard fertilization as one of the important means of increasing yield, so they show great concern about fertilization techniques. Years of experience and lessons in cotton fertilization tell us that the common experience for increasing cotton yield through fertilization is: apply sufficient basal fertilizer, apply seedling fertilizer quickly, apply bud fertilizer steadily, apply flower and boll fertilizer heavily, and apply boll fertilizer universally. However, when it comes to different cotton varieties, there are differences in fertilizer application.
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How to Improve the Utilization Rate of Winter-Idle Fish Fry Ponds
After the winter pond consolidation until the release of summer fry the following year, most fish fry ponds have an idle period of about half a year. If they are comprehensively utilized, the utilization rate and economic benefits of the fish fry ponds can be greatly improved. Four methods of utilizing winter-idle fish fry ponds are introduced below. Raising market-size fish: Using winter-idle fish fry ponds to raise one season of market-size fish can both increase output and help regulate the "summer shortage" aquatic product market. Because the rearing period is relatively short and the temperature is relatively low, the following techniques should be adopted: 1. Stock early, that is, stock immediately after the fish fry are consolidated into ponds, so as to make full use of the growing period. The stocking amount is calculated at a maximum water depth of about 2 m, generally 125 kg to 150 kg per mu. For the stocking ratio, generally silver carp account for about 40%, bighead carp about 10%, grass carp and bream about 30%, and black carp and common carp about 20%. Release @#@233@#@ large-size fingerlings, generally silver carp and bighead carp above 250 g, grass carp above 500 g, bream above 100 g, black carp above 1000 g, and common carp above 250 g. 2. Strengthen management. Fertilize promptly after the fish are stocked. Fertilization should mainly use organic fertilizer to ensure that the pond water has a certain fertility. In winter, choose clear and warm weather and feed once every 2 to 3 days, with the feeding amount at about 20% of the usual amount. In spring, as the water temperature rises, increase the feeding amount and maintain good water quality, so that the fish school maintains a relatively high growth rate and reaches the market size on schedule.
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The key to successful shiitake mushroom cultivation lies in sterilization
"Incomplete sterilization, and mushroom growing is a killer," this is a vivid description of cultivation failure caused by incomplete sterilization in shiitake mushroom cultivation. Sterilization is an extremely important step in the process of cultivating shiitake mushrooms, and it determines the success or failure of cultivation. First, before mixing the shiitake mushroom substrate, carefully inspect the sterilization stove. Check the sealing degree of the sterilization stove, the degree of flame combustion, and whether the cold air exhaust is unobstructed, so as to ensure that no unexpected situations occur during the sterilization process. Second, after bagging is completed, the bags must be loaded immediately, and according to the amount of 3
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Detailed Explanation of Sterilization, Inoculation and Cultivation Methods for Shiitake Mushroom Culture Media
I. Sterilization of Spawn Culture Media Sterilization of the culture medium is the key to success or failure in spawn production. Unsterilized culture media contain large numbers of microorganisms, which often lead to spawn contamination and cause losses to production. At present, the sterilization method commonly used by mushroom growers is atmospheric steam sterilization. The atmospheric sterilization stove used for atmospheric steam sterilization is built with bricks. Select an iron pot with a diameter of 110 cm, build a pot cylinder with bricks 100 cm high and 120 cm in diameter, and smooth the inside and outside with cement. After the culture medium is loaded into the sterilization pot, use relatively thick plastic
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Breeding and Utilization of the Japonica Hybrid Rice Hanyou 1027
Hanyou 1027 is a new japonica hybrid rice combination bred by the institute in 1985 by crossing the Hanfeng male-sterile line with the T1027 restorer line. In 1986, at the institute's experimental farm, on 1.62 mu the yield was 581.7 kg per mu, an increase of 11.8% over Hanfeng. In 1988, on 1.2 mu at the institute, the yield was 604.6 kg per mu, an increase of 22.0% over Xiushui 04. As a single-season rice in Shanghai, the combination takes 153-156 days; as a double-season rice in Changsha and Hangzhou, 122-142 days.
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