In recent years, with the continuous improvement and improvement of cotton-planting technology, the area of ​​double-membrane cotton has also expanded accordingly. The so-called double-membrane cotton is the use of plastic film coverage of the cultivation of good cotton seedlings transplanted on the field cover film. Double-film cotton has significant effects of heat preservation, moisture retention, fertilizer retention, weed control, premature hair growth, early maturing, and high yield. However, in the promotion of large-area double-film cotton, because of different cotton-planting techniques, farmers have different levels of cultivation, and some technical weaknesses have also been revealed. One is the lodging of cotton plants; the other is premature aging of cotton. The former is caused by the uncovering of the film too late, and the latter is caused by the lack of timely or insufficient top-dressing. These two problems often hinder the development of the advantages of the double-membrane cotton. To this end, measures must be taken early to prevent lodging and premature aging.
First, timely removal of plastic film. Local studies have shown that the main root of double-film cotton is cut off during transplanting, and a large number of lateral roots and fibrous roots are concentrated in the soil layer of 10-20 cm. Due to superior temperature and fertilizer and water conditions, the soil has a strong fertilizer supply capacity. The cotton's ability to absorb fertilizer and water during flowering and flowering is much stronger than that of live cotton. The vegetative growth and reproductive growth of the aboveground parts are much better than those of live cotton. At this time, if it is timely to remove the plastic film and strengthen the cultivator, the double-film cotton can give full play to its advantages. However, if the film is uncovered or uncovered, once the stormy weather comes, the cotton roots are mostly distributed in the upper layers of the soil. Poor ability, very vulnerable to lodging. Therefore, we must timely remove the plastic film, fine management, and promote root protection. Film removal time is most suitable for the early flowering period.
Second, quickly make up fertilizer material. Double-film cotton due to the development process than the live cotton 20 to 30 days earlier, the early consumption of fertilizer than the live cotton, all management measures must be earlier, in particular, to quickly apply flower and bell fertilizer, topdressing urea should be 10 to 15 Kg, or ternary compound fertilizer 10 to 15 kg. For potassium-deficient cotton fields, 5 to 10 kg of potash fertilizer should be applied per mu, and 15 kg of potash fertilizer should be applied per mu for insect-resistant cotton. When the average cotton plant has 2 to 3 peaches, about 15 kg of urea should be applied per mu. If neglecting the management of fertilizers and waters, cotton will soon fall on a large area after peaches, and it will also be accompanied by physiological blight disease and premature defoliation.
Third, coordinate balanced growth. Because of the rapid development of double-membrane cotton, it is also very easy to cause madness. We must take relevant measures to coordinate balanced growth. First, after entering the bud stage, we must spray delayed-type plant growth regulators such as dildoamine or mepiquat, 2 to 2 mu per mu. 3 grams or 8 to 12 milliliters of water to 40 kilograms; Second, pay attention to spraying the regulator after the color of cotton leaves quickly turn dark green, can not cover the contradictions of the latent deferring fertilizer, the top dressing is still timely dressing; Third, pay attention to expose the Membrane when the film leaves the field, so as not to affect the cultivation of cultivator and post-mandarin management; four to spray boron fertilizer 2 to 3 times, promote the use of high content of Sonic boron.
First, timely removal of plastic film. Local studies have shown that the main root of double-film cotton is cut off during transplanting, and a large number of lateral roots and fibrous roots are concentrated in the soil layer of 10-20 cm. Due to superior temperature and fertilizer and water conditions, the soil has a strong fertilizer supply capacity. The cotton's ability to absorb fertilizer and water during flowering and flowering is much stronger than that of live cotton. The vegetative growth and reproductive growth of the aboveground parts are much better than those of live cotton. At this time, if it is timely to remove the plastic film and strengthen the cultivator, the double-film cotton can give full play to its advantages. However, if the film is uncovered or uncovered, once the stormy weather comes, the cotton roots are mostly distributed in the upper layers of the soil. Poor ability, very vulnerable to lodging. Therefore, we must timely remove the plastic film, fine management, and promote root protection. Film removal time is most suitable for the early flowering period.
Second, quickly make up fertilizer material. Double-film cotton due to the development process than the live cotton 20 to 30 days earlier, the early consumption of fertilizer than the live cotton, all management measures must be earlier, in particular, to quickly apply flower and bell fertilizer, topdressing urea should be 10 to 15 Kg, or ternary compound fertilizer 10 to 15 kg. For potassium-deficient cotton fields, 5 to 10 kg of potash fertilizer should be applied per mu, and 15 kg of potash fertilizer should be applied per mu for insect-resistant cotton. When the average cotton plant has 2 to 3 peaches, about 15 kg of urea should be applied per mu. If neglecting the management of fertilizers and waters, cotton will soon fall on a large area after peaches, and it will also be accompanied by physiological blight disease and premature defoliation.
Third, coordinate balanced growth. Because of the rapid development of double-membrane cotton, it is also very easy to cause madness. We must take relevant measures to coordinate balanced growth. First, after entering the bud stage, we must spray delayed-type plant growth regulators such as dildoamine or mepiquat, 2 to 2 mu per mu. 3 grams or 8 to 12 milliliters of water to 40 kilograms; Second, pay attention to spraying the regulator after the color of cotton leaves quickly turn dark green, can not cover the contradictions of the latent deferring fertilizer, the top dressing is still timely dressing; Third, pay attention to expose the Membrane when the film leaves the field, so as not to affect the cultivation of cultivator and post-mandarin management; four to spray boron fertilizer 2 to 3 times, promote the use of high content of Sonic boron.
Mechanical Mod Kit Series
Mechanical MOD Kits of Various of products, including AV Mods Kits,Resin Mod Kits,Brass Mod Kits,Copper Mod Kits and Stainless steel Mod Kits with various colors, provide product pictures and basic parameters, we are committed to supply chain management, we are a professional Chinese manufacturer of Mechanical Mods Kit and we are looking forward to your cooperation.
Mechanical Mod Vape,Pen Starter Kit Vape,Stab Wood Mod Vape,Pc Material E Vape
Dongguan Marvec Electronic Technology Co.,Ltd , http://www.marvec-cn.com