Cultivation method of sowing rice stubble and wheat before and after the winter solstice in the sandy-flush soil area of ​​northern Jiangsu

Abstract

The invention discloses a cultivation method of sowing wheat following rice around winter solstice in sand and moisture soil region in northern Jiangsu. The method comprises the following steps: (1) cutting up straw and retuning all chopped straw to fields; (2) applying enough base fertilizer and increasing phosphorus and potassium fertilizer; (3) selecting a large-spike springness variety and appropriately adding sowing quantity; (4) carrying out rotary tillage and sowing deep taking advantage of moisture in the soil; (5) pressing with strong power after sowing and when the moisture in the soil is appropriate; (6) digging internal and external canal systems for the wheat fields; (7) separately topdressing fertilizer to the saplings according to sapling growth and rain; (8) re-applying jointing and booting fertilizer; (9) timely preventing and controlling diseases, insect pests and weeds. The cultivation method aims at the wheat following rice delayed to be sowed around the winter solstice in the sand and moisture soil region in the north of northern Jiangsu main irrigation canal of Jiangsu province, and realizes a full stand and strong seedlings at one sowing; the heading period of the cultivated wheat comes three days in advance, the spike number is enough, the spike size is increased and the single spike weight is improved, so that the per unit area yield is further guaranteed to be stable and above 400 kg / mu.

Description

technical field [0001] The invention relates to the technical field of farming and cultivation, in particular to a cultivation method for sowing rice stubble and wheat before and after the winter solstice in the sand tide land area north of the main irrigation canal in northern Jiangsu, Jiangsu. Background technique [0002] The sandy tidal soil area north of the general irrigation canal in northern Jiangsu, Jiangsu Province, has a total area of ​​about 4 million mu, with an average annual temperature of 14.2°C to 14.8°C, and the average temperature in January (the coldest month of the year) is 1.3°C, with the daily minimum The number of days with temperatures below -5°C and -10°C is 21.9 days and 2.2 days respectively, and the annual rainfall is 850-980mm, but in winter (December to February of the following year) the rainfall is only 60-70mm, and the groundwater depth in winter is 1.0- 2.0m, the soil layer is deep and the soil capillary has a strong upward water transport ...

AI Technical Summary

Problems solved by technology

The existing technology of sowing wheat before and after the winter solstice in this area is derived from or modified the production technology of rice stubble wheat sown at the right time, which often results in a yield of less than 250 kg / mu or even loss of harvest

The main defects of the prior art are: (1) Improper application of varieties

Compared with ordinary farmers, large farming households and family farms still have a land lease cost of 800-1200 yuan / year. If the yield of rice stubble and wheat is below 250 kg / mu, it will cause no profit or even a loss throughout the year.