Detailed Explanation of Key Technical Points for Spring Cotton Sowing
Determine the density according to variety, soil fertility and planting method, and plant at a reasonable density to achieve full emergence from a single sowing. Generally, when a single spring cotton variety is planted, the density per mu is kept at around 3500 plants, with a row spacing of 1 m and a plant spacing of 19 cm; for semi-spring varieties, the density per mu is generally kept at around 4500 plants, with a row spacing of, and a plant spacing of 15 cm; for summer cotton varieties, ...
Determine the density according to variety, soil fertility and planting method, and plant at a reasonable density to achieve full emergence from a single sowing. Generally, when a single spring cotton variety is planted, the density per mu is kept at around 3500 plants, with a row spacing of 1 m and a plant spacing of 19 cm; for semi-spring varieties, the density per mu is generally kept at around 4500 plants, with a row spacing of, and a plant spacing of 15 cm; for summer cotton varieties, on plots with good fertilizer and water conditions, the density per mu is kept at around 6500 plants; on plots with ordinary soil fertility, it is kept at around 7500 plants; and on arid, barren, low-yield plots, it is kept at around 8000-10000 plants.
Full emergence from a single sowing is the foundation for increased yield and a good harvest. In production, to achieve full emergence from a single sowing, the first step is to select seeds of relatively high quality. Second, before sowing, necessary seed treatment must be carried out, such as seed selection and sunning the seeds, to improve the germination rate and germination vigor. To prevent cotton seedling-stage diseases, seed dressing with chemicals is also required. Third, attention must be paid to sowing quality, sowing with sufficient soil moisture and the proper sowing rate. Generally, the sowing depth is kept at around 4 cm. In addition, for spring cotton, attention should be paid to applying sufficient basal fertilizer, generally applying more than 5 cubic meters of organic fertilizer per mu and around 20 kg of ammonium dihydrogen phosphate.