A method for planting winter wheat in coastal salinized cultivated land

Abstract

The invention belongs to the field of crop planting and in particular relates to a method for planting winter wheat in a coastal saline cultivated land. The method comprises the following steps: preparing before seeding, seeding and performing field management, wherein the step of preparing before seeding comprises soil moisture water irrigation; the step of seeding comprises seeding on two sides of micro ridges; the step of performing field management comprises overwintering water irrigation and green returning and jointing water irrigation; the step of seeding on two sides of micro ridges is performed in autumn when the daily average temperature is about 18-20 DEG C; the ridge back height is 8-12cm, preferably 10cm; the ridge back width is 13-17cm, preferably 15cm; the furrow width is 8-12cm, preferably 10cm; the seeding amount guarantees that the quantity of basic seedlings is 350000-380000 plants per mu. The method is suitable for winter wheat planting areas in the coastal saline cultivated land, stable and high yield of wheat can be promoted, and yield of wheat grains can stably reach 400-500kg per mu when the wheat is planted in medium / light saline cultivated lands.

Description

technical field [0001] The invention belongs to the field of crop planting, and in particular relates to a method for planting winter wheat on coastal salinized arable land. Background technique [0002] There are a large number of used and unused coastal salinized arable land in the coastal areas of northeastern China, especially in the Bohai Rim region. After taking measures to develop and control it, it will become an important food production base. [0003] These climatic resources and soil characteristics are as follows: the area belongs to a typical monsoon climate, and has the characteristics of marine climate, four seasons, distinct dry and wet, windy spring and autumn, large evaporation, hot summer, cold winter, sunshine Abundant, basically sufficient heat resources, shallow water table, high degree of soil salinization, soil moisture and salinity in the vertical direction upward and downward, salt accumulation and desalination processes have distinct seasonal chara...

AI Technical Summary

Problems solved by technology

Late tillering, poor development, and low rate of ear formation. With the increase of saline-alkali concentration, the birth date of homotopic tillers is 8-12 days later than that of wheat in non-saline-alkali soil, and the rate of ear formation is reduced by 60-70%. Mainly; the development of young ears is 3-5 days later than that of ordinary wheat fields, and the differentiation period is 6-7 days shorter. The florets differentiate to the tetramolecular formation period, which coincides with the peak period of returning to salt, which shortens the duration of the differentiation period and increases the number of degenerated florets. , the number of grains per ear is reduced; during the filling period, it is also susceptible to drought, salinity, yellow leaves, abnormal premature maturity, resulting in poor grain plumpness and reduced grain weight

[0005] Although the climate and soil factors in the coastal areas are the main factors affecting the growth of wheat, because there has been little wheat planting in these areas in the past and the lack of mature technical methods for wheat planting, unfavorable field planting management measures cannot meet the characteristics of wheat growth and development, but It is an important factor that causes the low and unstable wheat yield