Difficulties in cotton planting methods must be reformed
In recent years, with the continuous breeding of new varieties of cotton, improvement of sowing and seedling raising methods, and improvement of the degree of agricultural mechanization, cotton field planting methods are extremely important for high cotton yield.
In the era of conventional cotton seedlings, cotton seeds were mostly planted by direct seeding, with higher cotton planting density, smaller row spacing of cotton, and more fertilizing of cotton. When the hybrid cotton is widely used, the density of the cotton field is continuously reduced due to the individual development of the hybrid cotton, and the row spacing of the cotton is expanded, and the cotton fertilization is mostly applied as a strip or a hole. When the agricultural machinery gradually entered the cotton field, the row spacing of the cotton was further expanded, and the cotton fertilizer was accordingly changed into shallow shallow ditch and deep ditch. It can be seen that the fertilization method also evolved with the continuous reform of planting methods.
When we surveyed the production of cotton in large areas, we often encountered cases of contradiction between cotton fertilization in field and cotton planting methods. Some households applied nitrogen fertilizer, and some households had too much fertilizer at one time, which often caused cotton growth. Long or insane growth caused cotton to be closed prematurely and the cotton fields were heavily shaded, resulting in a large number of cotton buds falling off, or because the cotton spacing was narrow after the peach was planted, the ventilation and light transmission conditions deteriorated, the boll ripening time was delayed, and the boll opening was not smooth. The reason boiled down to the seed problem, and clamored with the cotton seed supply department for compensation. The same cotton varieties, in the cotton field with reasonable planting methods, showed a bumper harvest because the cotton of these households was scientifically formulated and fertilized, the cotton spacing was relatively large, and the cotton field environment and growth performance was “not sealed on the bottom, and the middle One seam, sunlight shines in, the air can circulate, the bolls are large, and the bolls are not stable.†The cotton itself has a good ecological environment. Therefore, there are many knots, and the bolls are smooth. Individuals and groups develop harmoniously. Supporting good and good methods can fully display the advantages of increasing production.
In cotton areas with large areas of hybrid cotton, the continuous reform of planting methods is one of the effective ways to create a reasonable living space for cotton and explore high cotton yield. The advantages of reforming planting methods are as follows: First, it is convenient for the cultivation of machinery under the ground, which is conducive to deep cultivating, deep application of base fertilizer, and high ridge cultivation. Second, it is convenient for field management such as fertilizer application, pest control, and pruning; and the third is to facilitate drainage and drought resistance. , to enhance the ability to fight disasters; Fourth, cotton has a larger spatial distance, adequate light, air circulation, high photosynthetic efficiency, and rapid nutrient production; Fifth, can fully demonstrate the characteristics of hybrid cotton; Sixth, sitting peach faster, high rate of peach, shedding The rate is low and there is less rotten peach, so it can produce high quality and high yield.
At the present stage, the hybrid cotton planting area is larger, and the narrower line of behavior should be changed in the way of planting. The planting method of broad line and dense plant should be promoted. Where the fertility level is higher, the car width should be 2~2.4 meters (including the ditch). Two rows of cotton were planted at a spacing of 1 to 1.2 meters with a plant spacing of 0.45 to 0.5 meters and a density of 1,300 plants per mu. In places with medium fertility, it is also possible to use third-class lines, but the line spacing cannot be less than 1 meter. For the above planting methods, under the higher management level, the number of cotton plants per plant is generally about 45, with 55,000 to 65,000 peaches per acre, and an average of 600 pounds per acre of seed cotton is expected to be achieved. At the moment, the autumn sowing production is about to begin. The hybrid cotton planted in large cotton areas in various regions should summarize the experience and lessons of the cotton planting methods in a timely manner. The planting methods in the coming year can be adjusted immediately, and adjustments can be made in the more casual winter season.
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