Cotton bushes increase yield and increase efficiency
October 16 18:02:04, 2018
Cotton cover corn is a kind of planting mode that increases production and efficiency. The planting techniques are as follows: 1. There are two modes of the interplanting model and the corresponding varieties: First, the compartment is 1.7 meters wide, two rows of cotton cover two rows of corn, corn varieties are fresh corn, such as Huatianyu No. 1, handsome No.7, etc.; cotton varieties are insect-resistant cotton, such as Zhongmian 29, E-zamian No. 3, etc., so configured to reduce the number of drug use and facilitate the use of BT biological pesticides. Second, the use of wide and narrow box, wide box 2 meters, 1.4 meters narrow car, only two rows of corn in the middle of the wide box, corn varieties available Simi 3 or Denghai 9, etc.; cotton varieties available Xiangza 2 , E Za No. 1, Zhongmian 29 and so on. The use of wide and narrow compartments to dig more than one trench is convenient for irrigation and drainage; the lesser two rows of corn are to minimize the impact of such high varieties as Denghai No. 9 on hybrid cotton. 2, supporting cultivation techniques 1) timely sowing, shorten the symbiotic period between the two. Fresh corn was sown in the first two months of the end of March, and the seedlings were preserved in the plastic film during the seedling stage to prevent “cold and cold†attacks. Common corn was sown in mid-March to cover sowing. In mid-April, cotton was used to raise seedlings and transplanted in mid-May and mid-May, and 4000 times of “802†liquid was used to prevent seedlings from growing. In this way, fresh corn can be cleared around June 10; commonly used corn can also go to Tianxin at the end of June to pull the leaves and minimally affect the normal growth of cotton. 2) Control the density, retain and renovate the leaves and branches in time, and improve the light conditions in the cotton field. In Mode 1, the fresh corn spacing is 0.4 meters, the plant spacing is 0.3 meters, the density is 3200 plants/mu, the cotton plant spacing is 0.4-0.5 meters, and the density is 1600-1900 plants/mu. In the second model, the corn spacing is 0.4 meters, the plant spacing is 0.35 meters, the density is 1100-1200 plants/mu, the cotton plant spacing is 0.5 meters, and the density is 1600 plants/mu. Shorten the plant height of corn as soon as possible; remove ineffective deliveries in time; remove the tianxin in time after granting the powder; slap the leaves when the grains are slightly hardened; and plunge the leaves in time after harvest; Prior to flowering, cotton should be moderately modified and timely stalked and smashed to ensure that the vegetative branches thrive and build a high-yield shelf; after topping, visualize the growing trend and weather conditions, focusing on one time to improve cotton population structure. 3) Increase fertilization, formula fertilization, pay attention to soil fertility. The interplanting of cotton fields requires that the total amount of fertilizer applied be increased by about 20% compared with single cotton field. At the same time formula fertilizer according to the characteristics of the crop, such as Huatianyu No. 1, the base fertilizer requirements 50 kg per mu of cake fertilizer, 50 kg of phosphate fertilizer, 15 kg of potassium fertilizer; light fertilizer in the clover leaves, 5 kg of urea; balance fertilizer urea at the jointing stage 7.5 kilograms, 15 kg heavy panicle fertilizer when the bell is big, and the earth is rooted. 4) Comprehensive prevention and control of pests and diseases, the implementation of pollution-free cultivation. In cotton fields, pests and diseases affect each other and promote each other. Therefore, early warning, early prevention and control of disease and insect pests, and medication technology should be used to grasp the following four points: First, to maintain pest monitoring and reporting; second, to adopt alternative technologies, using biological pesticides, willow, mercury lamps, etc.; and third, local application and artificial control. Combination, such as dropping the heart, smearing stems, picking eggs, picking leaves, etc.; fourth is to adhere to the national provisions of the safety interval, the use of drugs pest control, especially fresh corn crops forbid 15 days before harvest.