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Comprehensive growth regulation technology for high-density cultivation of cotton variety 81-3
The 81-3 variety has the characteristics of a high boll-setting rate per plant, strong boll retention, disease resistance, high yield and good quality, and is currently the main variety planted by our regiment. At the same time, the 81-3 variety also has the characteristics of weak growth vigour at the seedling stage, gradually strengthening growth vigour at the bud stage, strong growth vigour at the flowering stage, no premature senescence in the late stage, and a rather long growth period. To obtain large-area abundant and high yields under high-density cultivation conditions, it is necessary, on the premise of scientifically and rationally managing water and fertiliser, to coordinate the relationship between vegetative growth and reproductive growth of cotton, and to master the comprehensive growth regulation technology for high-density, high-yield cultivation of 81-3.
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What is the relationship between the density of a dog's coat and body temperature?
While wandering through several dog forums, I noticed a common misunderstanding: many people believe that although some dogs have thick coats, the fur acts as "insulation" in hot weather, so it should not be clipped. 1. Although a dog's body has no sweat glands, it is still constantly releasing heat to the outside; the lower the outside temperature is compared with body temperature, the easier it is for heat to be released. A dog's body temperature is higher than room temperature in most cases, and summer temperatures are already high to begin with, so if a dog's coat is too thick, it is definitely not good for the body's heat dissipation. There are more than
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What is the appropriate stocking density for raising pigs?
The stocking density of pigs refers to the pen area occupied by each pig, usually expressed as "sq m/pig". Stocking density indicates how densely the pigs are housed in the barn. Stocking density has a great influence on the air environment inside the barn. If too many pigs are housed, more heat is released, which helps keep the pig barn warm in winter but is unfavorable for heat protection and cooling in summer; it increases the levels of harmful gases, water vapor, dust and microorganisms in the barn, and also makes fighting among pigs frequent, affecting feed intake and rest. If too few pigs are housed, then
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Spinach Cultivation: The cultivation process of spinach, spinach cultivation density
In pesticide-free cultivation, spinach is easier to grow than rapeseed (yu choy). Spinach carefully cultivated in the field during winter has a flavor that can truly be called exceptional. Varieties and sowing periods. Spinach varieties include the Western type with round leaves, and in addition, the native type with deeply lobed leaves
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What is the appropriate planting density for purple loosestrife?
1. Purple loosestrife (Lythrum salicaria) is highly vigorous and can be managed extensively, but a location with ample sunlight and good ventilation should be chosen. In open-ground cultivation, it is mostly planted in shallow-water areas and wetlands of garden waterscapes by park lakesides; in courtyards it can be grown in pots. The growing soil must be given an appropriate amount of decomposed chicken manure or cake fertilizer. 2. After purple loosestrife is planted until the rows close
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Is it better to plant corn at low density or high density?
Summary: Should corn be planted at "high density" or at low density? The autumn harvest season has arrived, and corn has successively entered the harvest season. The issue of corn planting density is actually a concern for many farmers. I previously saw someone...
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How to plant spring peanuts at a reasonable density? Key technical points on planting density
To achieve high yields of spring peanuts, six technical steps must be mastered: 1. Select excellent varieties. Good seed is the foundation for high yields, so varieties with strong resistance, high yield and high oil content should be used first. In recent years, trials have shown that "three-high" good varieties such as Shanyou 523, Shanyou 71, Yueyou 79, Guihua 21 and Wuyou No. 7. When planting, also...
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Detailed explanation of the high-density cotton cultivation model with five rows per film
Management of cotton during the boll-opening stage focuses on "four skillful practices" (skillfully managing fertilizer and water, skillfully pruning, skillfully picking rotten bolls, and skillfully promoting ripening). 1. Skillfully manage fertilizer and water to promote nutrient translocation. First, foliar topdressing. For cotton fields where leaves lose greenness too early and show fertilizer deficiency and premature aging, spray 50-60 kg per mu of 1%-2% urea solution on the leaves to extend leaf...
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Detailed Explanation of Small-Volume High-Density Cage Fish Farming Technology
Small-Volume High-Density Cage Fish Farming Technology
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What are the suitable seedling specifications and stocking density for cage culture of rice field eels?
Q: For cage culture of rice field eels, what size seedlings and what density should be stocked?
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