Cotton field transplantation overwintering method

Abstract

The invention relates to a cotton field transplantation overwintering method. The cotton field transplantation overwintering method comprises the following steps that (1) cotton plants are trimmed before transplantation at the beginning of October, and a small part of main stems and lateral branches are only reserved on the ground part to reduce nutrient consumption during the period of transplantation; (2) the soil relative humidity is between 50% and 60% between the midmonth of the October and the beginning of November, and flowerpots are adopted to arrange the overwintering cotton plants into a greenhouse covered with thin films in a potted plant mode to keep a root system to be complete; and (3) soil moist is kept after transplantation, growth of the cotton root system is facilitated,the temperature and humidity of the greenhouse are controlled, and safe overwintering of cotton is facilitated. According to the cotton field transplantation overwintering method, the survival rate ofcotton field transplantation is increased more than 90%, and in a general plastic thin film greenhouse, the survival rate of overwintering is increased more than 90%.

Description

technical field [0001] The invention belongs to the technical field of planting, and in particular relates to a cotton field transplanting and overwintering method. Background technique [0002] Cotton is native to tropical and subtropical regions and is a perennial, short-day crop. After long-term artificial selection and cultivation, it gradually moved north to the temperate zone and evolved into an annual crop. China has introduced and cultivated upland cotton since the early Qing Dynasty. Its origin is in the American continent. Cotton in the main cotton-producing areas of China is an annual crop. Planting in late spring and early summer, budding, flowering, and fruiting will complete the growth cycle in that year. In the low temperature environment in winter, the leaves of the cotton plants will die and the life cycle will end. [0003] Cotton cannot survive the winter in the field under natural conditions. Therefore, germplasm resources such as mutant materials, ster...

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Problems solved by technology

[0004] The traditional cotton transplanting method is to transplant the whole plant with soil. Because the cotton plant is tall, it takes a lot of labor and effort when transplanting, the cotton plant is easily damaged, and the survival rate of transplanting and overwintering survival rate are low. The survival rate is less than 10%, and it cannot survive the winter under natural conditions, and the survival rate of ordinary plastic film greenhouses is less than 5%.