Beet planting method in high and cold spring drought windy regions with severe weed harm

Abstract

The invention discloses a beet planting method in high and cold spring drought windy regions with severe weed harm. The method comprises the following steps: sowing barley by way of sowing in strip ina period of 15th, April to 20th, April, sowing beet in strip by using a precision sower when the barley is 4-6 cm in a period of 5th, May to 15th, May, wherein the line spacing is 50-60 cm and the inter plant distance is 16-18 cm, and the beet sowing ridge direction and the barley sowing ridge direction form an angle of 60-90 degrees, and suppressing the barley while sowing and spraying water immediately after sowing; in a pair of main leaf period of the beet, spraying a herbicide, and ploughing and unloosening soil and weeding 4-5 days after spraying the herbicide to remove weeds and barleyseedlings on the ridge back. The invention relates to the beet plant method suitable for high and cold spring drought windy regions with serve weed harm.

Description

technical field [0001] The invention belongs to the technical field of agricultural cultivation, in particular to a sugar beet planting method in an area seriously damaged by high-cold spring drought and windy weeds. Background technique [0002] The area north of Daxing’an Mountains is commonly known as the Lingbei area. The climate is harsh and the temperature in spring is low. In 2018, a sugar factory with a daily processing capacity of 5,000 tons of sugar beets was built and put into operation in Erguna City. Take Erguna, which has a large area of ​​sugar beets, as an example , the lowest temperature in April is -16.0°C, the highest temperature is 23.5°C, the average temperature is 3°C, the lowest temperature in May is -3.1°C, the highest temperature is 29.5°C, and the average temperature in May is 11.8°C. Except for sowing wheat, other crops cannot be sown; the spring is dry and the precipitation in spring is low. According to the statistics for many years, the precipit...

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Problems solved by technology

[0002] The area north of Daxing’an Mountains is commonly known as the Lingbei area. The climate is harsh and the temperature in spring is low. In 2018, a sugar factory with a daily processing capacity of 5,000 tons of sugar beets was built and put into operation in Erguna City. Take Erguna, which has a large area of ​​sugar beets, as an example , the lowest temperature in April is -16.0°C, the highest temperature is 23.5°C, the average temperature is 3°C, the lowest temperature in May is -3.1°C, the highest temperature is 29.5°C, and the average temperature in May is 11.8°C. Except for sowing wheat, other crops cannot be sown; the spring is dry and the precipitation in spring is low. According to the statistics for many years, the precipitation from March to May is only 60 mm. Mainly rely on pumping and temporarily storing river water for sprinkling irrigation; the farmland in Lingbei is developed from low mountain pastures, and only a few farmlands are surrounded by protective forests. The average wind speed in Lingbei area from April to May is 2.4-3.0 m/s, There are thunderstorm days, sometimes wind and sand will destroy the seedlings in the farmland, and the phenomenon of seed destruction occurs almost every year; the farmland is surrounded by pastures, so there are many weeds in the farmland. Good control, it is a bit difficult to use herbicides to control broad-leaf weeds, mainly because the seedling age of weeds is uneven. The application effect is good, but the climate in Lingbei area is dry, and the effect of herbicide is not exerted. The common practice is to increase the amount of herbicide and increase the frequency of herbicide application. Although the growth of weeds is controlled to a certain extent, but It also reduces sugar beet production, increases costs, and pollutes the environment; the effective accumulated temperature of Lingbei ≥ 10°C is only about 2100°C, the average frost-free period is about 110 days, and the frost-free period exceeds 120 days in only 2 years in 10 years. This special natural condition It was decided that crops with a long growth period such as corn cannot be planted here, and only wheat, barley, rape, and a small amount of potatoes can be grown here. The average minimum temperature in Lingbei area in September is -5.5°C, and the average maximum temperature is 27.9°C. The temperature is 6.6 degrees, and in some years it snows in early September, so the sugar beets must be harvested in the middle and late September, and the harvest must be completed in a short time; the c