How to grow soybeans and when to plant them

Ploughing and soil preparation: after harvesting vegetables, ploughing the soil in sunny weather and opening ditches according to the width of 2-3 meters after ploughing. Seed selection and disinfection: select high-quality seeds and mix them evenly with elixir powder. Prepare for planting: turn over the soil, water once 2 days before planting, and spray herbicides mechanically. Planting time: from the end of March to the beginning of April in spring, the average daily temperature is 10-12 ℃. Rational fertilization: apply appropriate amount of calcium magnesium phosphate fertilizer and farm organic fertilizer.

1. Ploughing and land preparation

1. When planting spring soybeans in the field, ploughing the soil before winter, dividing the compartment according to the width of 2-3 meters after ploughing, and then opening the box trench, perimeter ditch and waist ditch, fine cultivated land in spring weather requires that the soil should be fine and not dark, and the surface of the box is flat without digging holes.

2. During this period, it can be planted in the dry plots that are idle in winter, and ploughing should be carried out before the beginning of winter, while in the dry plots where vegetables are planted in winter, the soil should be ploughed in sunny weather after harvesting, and ditches should be opened according to the width of 2-3 meters after ploughing. Fine arable land.

2. Selection of species for disinfection

The main results are as follows: 1. The germination rate of high-quality soybean seeds is higher, and it is also conducive to the neat and healthy growth of seedlings, so before planting, it is necessary to pick out diseased grains, small grains, blighted grains, worm-eaten seeds and broken seeds, and select high-quality seeds for planting.

2. During this period, 0.1-0.15% octane, or 0.7% elixir powder, or 0.3-0.4% carbendazim plus thiram, or 0.3-0.5% carbendazim plus carbendazim can be evenly mixed with seeds.

Third, prepare to plant

The main results are as follows: 1. Before planting soybeans, the soil should be turned over, raked stubble, ridge cultivation, deep loosening and so on. The plots with poor conditions can be watered once two days before planting, and it is generally appropriate to water the soil, which is beneficial to improve the germination rate of soybean seeds after planting.

2. If soybeans are planted in a large area and mismanaged, it will easily lead to weeds, so mechanical spraying of herbicides can be used before planting.

Fourth, planting time

The main results are as follows: 1. Planting begins when the average soil temperature reaches 10-12 ℃ per day, and it is generally a suitable planting period from the end of March to the beginning of April in spring. Caves need to be dug when planting, generally according to row spacing of 27-33cm and hole spacing of 17-20cm. Each hole can sow 4 seeds, usually shallow sowing, and then cover 3-4cm thick soil.

2. The planting density should be determined according to the characteristics of soybean varieties and water and fertilizer conditions. Early-maturing varieties can plant an average of 30-40, 000 plants per mu, middle-maturing varieties can plant 2.5-35000 plants per mu, and late-maturing varieties can plant about 20, 000 plants per mu.

V. rational fertilization

Calcium magnesium phosphate fertilizer 36kg and farm organic fertilizer 400kg can be applied per mu, while urea 100kg is needed for poor soil environment.