Key Techniques for Continuous Cropping of Double-season Peanut

Double-season peanut continuous cropping refers to the cultivation mode of growing two-season peanuts in the same field for one year. The Hongan Peanut Research Institute was successfully tested in 1993. From 1995 to 1997, the Hubei Provincial Science and Technology Commission supported the project for three consecutive years and was hosted by the Hongan Peanut Research Institute. The large-scale demonstration and promotion was carried out. It was a complete success and a cumulative total of 3,218 acres was promoted. In the first quarter, peanuts produced an average of 321.5kg per mu. In the second quarter, peanuts produced an average of 224.6kg per mu, with an output value of 1856.74 yuan per mu. This model was approved by experts of the Hubei Provincial Science and Technology Commission in December 1998. The practice of large-scale planting in recent years has proven that continuous cropping of double-season peanuts is a new cropping pattern with high yield and high efficiency. Filled the gap in the two-season continuous farming system in Hubei Province. Double-cropping peanuts are continuously cultivated for cultivation technology, which has good operability, and has good promotion value and application prospects. Now the key technologies for continuous cropping of double-season peanuts are introduced as follows: (A) Special early-mature peanut new line 88-415 is selected for early maturation To ensure that the season spring season 105-110d sowing, for the second season cultivation 95d, double season continuous crop 205d, to meet the season requirements of double season peanuts. (2) The peanuts in the first season of appropriate sowing season shall be covered with mulching film, and peanuts shall be cultivated in the second season. The suitable sowing date for the first quarter of peanuts was around March 20, which was covered with mulching film after sowing, so as to ensure that the temperature in the film during the seedling emergence period of the first season was stable at 12°C to ensure safe emergence and increase the yield. The second season peanuts were sowed before the end of July. (C) chemical weeding first season mulching peanut seeding film, after the second quarter of peanut sowing, mu before the bud selection herbicide "Gaixao" or "acetochlor" 0.2kg, water 75kg, even spraying the surface, eliminate Weed hazards. (4) Closely plant 8500-9000 holes for peanuts in the first quarter and 10,000 holes for peanuts in the second quarter to give full play to the production potential of groups and individuals. (5) Applying base fertilizer, suitable for fertilizing 800-1000 kg of soil-fertilizer in the first quarter of nitrogen fertilizer, 50 kg of three-element compound fertilizer, 5 kg of urea, 0.5-lkg of borax, and 40% of peanut fertilizer in the second season. (6) Prevention and control of pests In the early and middle stages of the growth of peanuts, aphids and cockroaches are mainly controlled, and attention is paid to the prevention and treatment of rust and leaf spot in the middle and later stages.

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