Cotton boll size is related to fertilizer and water
Farmers like the varieties, one to boll (peach) big, and two to pick flowers.
Cotton boll weight is one of the important factors that make up cotton production, but it is not the only one. The composition of yield is inseparable from the density per mu, the number of single plants, the weight of bolls, and the number of lints. Only the pursuit of big peach can not. It is understood that the number of cotton parent and cross combinations of single bolls weighing over 8 grams is not rare, but these research institutes are not arbitrarily introduced to Daejeon. This is because some boll weights are high, but cotton plants often have a lot of lower and upper knots. It is difficult to bind peaches during the fugitive period; some bolls are also strong, but the bell shells are thick and easy to rotten peaches, not easy to pick flowers. Some large peaches have high requirements for soil fertility. After last year's planting, they must increase their fertilization by 20~30% in the following year; the other big peaches have unsteady traits and poor consistency in field planting. . From all these, we must be cautious when quoting large peach varieties.
The average boll weight of conventional cotton varieties averages 5 to 5.5 grams, and very few of them reach 6 grams. The average weight of single bolls for hybrid cotton varieties is 6-6.5 grams, which exceeds the average level of this boll weight at the present stage and is suspected of malicious speculation. The boll weight and cotton boll shape of fine cotton varieties are generally related to the genetic basis of cotton, but the external ecological environment, especially the fertilizer and water conditions, have a greater impact on the weight of bolls. According to our many years of observation, the same species, under different fertilizer and water conditions, the boll weight is obviously different, the fertilizer and water conditions are good, especially the organic fertilizer and potassium fertilizer are applied in adequate cotton fields, and the intuitive effect of cotton boll weight is obvious. Much higher than fertilization, especially in cotton fields where potassium is insufficient, boll opening is also very beautiful. It can be seen that, after selecting good cotton varieties, it is necessary to optimize supporting cultivation techniques, especially to formulate potash fertilizer and organic fertilizer. Only in this way can we combine the effects of increasing the weight of cotton bolls, increasing yield, and benefit.
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