High density cultivation Model of Cotton with one Film and five elements

High density cotton cultivation was put forward on the basis of low density and early cultivation model, that is, the theoretical density of about 13000 plants with wide film and four rows of plastic film was increased to about 16000 plants. The practice of high-density cultivation model has proved that its yield-increasing effect is remarkable, and it has developed rapidly in cotton production. In 2002, the high-density planting area accounted for 69% of the cotton area. According to the results of yield measurement at all levels, under normal circumstances, the yield of high-density cultivation is generally 10% higher than that of one film and four rows. From 2001 to 2002, the Agriculture Department of the autonomous region organized experts to test and accept the high-density and high-yield sites in southern and northern Xinjiang, and the per unit yield of the high-yield point in Luntai County was the highest for two consecutive years. In 2001, I was assigned by the Department of Agriculture to squat to grasp the popularization and application of high-density cotton cultivation technology in Luntai County. Here, the cotton one-film and five-element model is introduced for reference. The high-density cultivation mode of one film with five elements is to add a row in the middle on the basis of the original wide film (the width of the film is 1.4 meters) and four lines of the film. generally, the width of the film is 110 cm after sowing, the space distance between the width of the film is 50 cm, and the distance between plants is 12.5 cm. This model developed to 80.3% of the cotton sown area in Luntai County in 2002, so that the per unit yield of cotton in Luntai County rapidly increased from 101kg in 2000 to 118.9 kg in 2002, an increase of 17.7%. The effect of increasing production is very significant. On September 8, 2001, we investigated two high-yield fields with a unit yield of 178.02 kg and 173.29 kg respectively in the second brigade of Har Bagh Township and the Forestry team of Zedaya Township. First, the results of the investigation, the actual number of seedlings and bolls of different peers, it is more obvious that the effect of seedling protection of Bank of China (different in the third row) is slightly better, but the effect of boll formation is slightly worse. Under normal circumstances, the side line is well ventilated and transparent. The boll formation rate is high. 2. The node position of fruit branch in the side row is lower than that in the middle row, the height of the fruit branch in the side row is higher than that in the middle row, the plant height is higher in the side row than in the middle row, the stem diameter is slightly higher than that in the middle row, and the plant height is thicker than that in the middle row. 3. The average number of fruit branches per plant is 7.65-9.35; the number of effective fruit branches is 5.3-5.8; the proportion of effective fruit branches to the total fruit branches is 69-29-62.47%; the average number of bolls per plant is 6.05-5.95; 1. The boll-forming ratio of 3 fruit branches is 54.11-39.1]%; the boll-forming ratio of 4-6 fruit branches is 30.12-28.73%; the proportion of bolls above 7 fruit branches is 15.89-32.15%. The high-density cultivation method of one film and five elements is convenient and feasible, and it is one of the effective models to create high yield of cotton in our region. 2. 2. The high-density cultivation method of one film and five elements should achieve a high yield of 170 kg. (1) the plant height should be controlled at 45-55 cm. (2) the average number of fruit branches per plant was 9, and the number of effective fruit branches was 5.3-5.8. (3) the average number of bolls per plant is 6. (4) 1 the average boll setting rate of 3 fruit branches is 46.62%, the average boll setting rate of 4 fruit branches is 29.43%, and the average boll setting rate of above 7 fruit branches is 24.02%. Third, the main points of the model 1. Attention should be paid to improving the retention rate of the side row and solving the problem of overcovering soil in the side row, which affects seedling emergence and growth and development. At the same time, attention should be paid to improving the bell-setting rate of the Bank of China. 2. The number of fruit branches should not be on the high side, and the high target fruit branches will lead to vigorous growth, hollow or late ripening. 3. When topping, it should be correctly grasped, not too light (such as heart-picking), too light, the fruit branches of the penultimate 1-color 2 are not fully developed, the endogenous hormones produced at the top can not normally stimulate the development of fruit branches, and there is no normal supply of endogenous hormones at the top of the plant after topping, which often leads to the formation of ineffective branches, affecting the yield structure and the realization of the goal. 4. The boll formation rate of fruit branches showed a pyramidal distribution from bottom to top. 5. Do a good job in the implementation of various cultivation measures to ensure that the proportion of effective fruit branches is more than 66%.