Implementing precision sowing
October 14 06:02:02, 2018
Sowing method (1) Double rows on the ridge precision on demand. The 2BT-II seeder was used to plant double rows on a 66-70 cm ridge. The row spacing on the ridge was 8-10 cm, the distance from the plant was 10 cm, the density was 28-30 plants per square meter, and the seeding depth was 4-5 cm. (2) equidistant sowing on ridges. Using a 2BT-II seeder (with a corn tray), a single row of equidistant pods was planted on 66-70 cm ridges. The distance between the points is 15 cm, and 3 plants per hole are reserved; the distance is 18 cm and 4 plants per hole are left. (3) "Three Ridges" cultivation method. The application of 2BJGL-6 or 2BJGL-12 combined tillage machines for ridge double-seeding, deep loosening and deep layered deep fertilization was completed in one operation. It was suitable for low wetlands in Sanjiang Plain and low-lying land with good moisture. (4) "Two ridges and one ditch" cultivation method. Using 2BX-3 type seeder or artificial seeding, on the basis of 70 cm ridge, every other ridge in the ditch to increase a row of seedlings, large row spacing 140 cm, a small row spacing of 35 cm, ridge Taiwan cave distance of 15-18 cm, each hole Seedlings 3-4 strains; ridge spacing 20-22 cm, leaving 2-3 plants per hole. (5) Narrow-row dense planting method. Pillow spacing 30-50 centimeters, the use of grain seeder or improved seeder sowing, earth covering, suppression of continuous operations. Note: The planting density should be determined according to the type of species, ecological conditions, cultivation conditions, and planting methods. For example, there are many species branches, and the fertilizer and water conditions are good. The cultivation of ridge cultivation can be appropriately sparsely planted with 18-20 plants per square meter; otherwise, it can be denser, with 25-30 plants per square meter. "Two ridges and one ditch" and narrow rows of closely planted cultivation can leave 35-45 plants per square meter. The conditions for achieving precision broadcast (1) a reasonable rotation. It is best to choose the right one, not heavy, not welcome. (2) meticulous site preparation. According to the former chanting, it is carried out in a fall to a depth of 22-25 centimeters. When the operation is performed, it cannot afford large soil blocks, no clear strips, and strict, heavy, and leaky buckles. Tillage is straight, the straight line error within 100 meters does not exceed 20 centimeters, and the height difference within 10 meters of the surface does not exceed 15 centimeters. The combination of rafts reaches flat and finely divided, and the height difference within 10 meters wide is no more than 3 centimeters, and the internal diameter of 3 to 5 centimeters in square meters is no more than 10 pieces.耙 耙 10 — — — 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 。 。. Ridge straight, 50 meters long straight line error is not more than 5 centimeters, the pedestal error does not exceed 1 centimeter, the combined error does not exceed 3 centimeters, the ridge amplitude error is within 3 centimeters, the ridge after the suppression. (3) Suitable soil moisture. After soil preparation, the soil moisture content (% of dry soil) should be about 22% at the time of sowing, so that the seeds can normally germinate and sprout. (4) Suitable sowing. In the depth of 5-7 cm in soil, when the ground temperature stably passes 8°C, it can be suitable for sowing. The general sowing period for spring soybean in Heilongjiang Province is from April 25 to May 10. China Agricultural Network Editor