Since mid-May, Xinjiang’s Karamay City, Aksu and other regions have encountered strong winds. Many cotton fields’ mulched drip irrigation belts have been blown up, and cotton seedlings have also been blown by the strong winds, causing their leaves to wither.
According to official data, the cotton planting area in Aksu this year is 7.1 million acres, making it the leader of Xinjiang’s cotton industry. The area affected by the strong wind disaster accounts for almost half of Aksu’s cotton area and output. , if replanting or reseeding may affect the cotton yield and quality in this area this year. Experts analyze that as long as we can seize the time to resow, we can only choose early-maturing varieties with a growth period of about 120 days. However, due to the artificial adjustment of varieties, this year’s cotton yield and quality will have a certain impact.
Whether it is Xinjiang or inland cotton areas, cotton production encounters disastrous weather in the early stages, and after cotton grows to a certain plant type, plant height, and physique, it develops a certain degree of disaster resistance and fertility. There is a big difference in the reversal. Disasters during the sowing and seedling stages have a greater impact on the growth period and quality of cotton. Moreover, repeated reseeding increases the production cost of the year and affects the annual cotton production efficiency.
First of all, as a reserved stubble site, the land used for cotton cultivation in that year, regardless of the natural conditions at the sowing date, could only grow cotton and had few other options. , Xinjiang cotton area is more representative than the mainland. Nowadays, with the improvement of production conditions, most cotton production in the main cotton-producing areas has been mechanized, especially in the vast Xinjiang cotton area, and the entire sowing process is almost 100% mechanized. It is conceivable that after the disaster in the newly sown cotton fields, it is difficult to rely on interpolation to cover such a huge area. The reason is that the adaptation of operating machinery and related manpower and material costs have become more unpredictable, and the secondary replanting of large areas , machinery, agricultural materials, seeds, labor, etc. are equivalent to doubling the cost of sowing. Based on the previous increase in cost of re-sowing after the initial sowing of new cotton in the Mainland was affected by disasters, the agricultural investment in successful re-sowing accounted for about 25-30% of the entire season’s cotton production costs. As for how much the cost of re-sown cotton in Xinjiang accounts for the annual production cost, it may not be the same as that in the Mainland. The same, but additional factors will inevitably occur, and the impact on annual production efficiency will inevitably exist.
Secondly, reseeding will affect cotton quality due to the selection of early-maturing varieties and the lack of natural growth period. “People mislead the land for a while, and the land misleads the people for a year.” Since you need to replant, you must of course choose varieties that are in time with the season. If a variety is not suitable for the time and season, its future fertility quality will not be as good as the seasonal varieties. Regardless of Xinjiang or inland cotton areas, cotton must have a growth period during which its quality is formed. The growth period of Xinjiang cotton is shorter than that of inland cotton. This is because of Xinjiang’s unique geographical advantages, such as long sunlight hours, large temperature differences between day and night, and less rain. Give birth in a relatively suitable environment. But the seasons wait for no one, and any crop that is resown cannot achieve the characteristic advantages of proper cultivation and proper growth of native varieties. Taking cotton as an example, its seedling, budding, boll-setting and catdding stages all have certain requirements for the seasonal climate. If it is too late or too early, it will be worse. If there are diseases, insect pests, wind and hail and other disasters during this period, The attack further damaged the quality of cotton. Although experience in the Mainland has found that cotton has characteristics such as reversal, compensation, and regeneration, the natural characteristics of Xinjiang cotton’s growth period are different from those in the Mainland. Its characteristics such as reversal, compensation, and regeneration may not be the same as those encountered by Mainland cotton, such as rain and waterlogging disasters, and more The important thing is that no matter which region, the post-disaster reversal of all crops can only be achieved during a roughly normal growth process. Just like planting cotton after the “Great Heat”, no matter how good the production measures are, it will be in vain. Therefore, replanting Or re-sowed cotton will be difficult to match in color, fiber length, grain fullness and yield in the future under conventional and timely optimized management conditions. Of course, after sowing, if God gives us some support and management is scientific and meticulous, the gap between quality and quantity can be narrowed or brought to the nearest state. </p
