Tips for planting pipes with high yield of soybean

Soybean is one of the most important oil crops, sowing in spring or summer. In order to ensure its high quality and high yield, it is important to plant the tube.

1. For soil preparation and seed selection, soybean should avoid continuous cropping, because: ① continuous cropping will increase nitrogen in the soil and hinder the absorption of phosphorus and potassium; ② soybean roots secrete an acidic toxic substance, continuous cropping makes soybean lack of molybdenum; ③ soybean diseases and insect pests are specific, continuous cropping aggravates the harm of diseases and insect pests. Therefore, the selection of planting plots should be rotated or interplanted with Gramineae crops and potatoes. No matter sowing in spring and summer, ploughing and leveling deeply before sowing, apply sufficient bottom fertilizer and irrigate enough bottom water. Excellent varieties should be selected, and after drying and screening, the seeds should be sprayed with rhizobium powder and 800-fold solution of new high-fat film, and the seeds can be sown after drying. The sowing density should be determined according to the variety, soil fertility of water and fertilizer, season and other conditions. To achieve reasonable close planting.

Second, strong seedlings to promote flowers: after emergence, the seedlings should be checked in time to make up the seedlings to ensure the whole seedling. The cultivation of soil by weeding and weeding immediately after seedlings (at least three to four times during the whole growth period) is beneficial to loose soil, promote root development, drought tolerance, lodging resistance, drainage, formation and development of rhizobium, and enhance the ability of nitrogen fixation. In the whole seedling stage, sufficient water and fertilizer should be achieved, NPK proportion and soil moisture should be reasonably matched, and Huawang No. 3 should be sprayed at the beginning of branching to inhibit the wild growth of top shoots, promote multiple branches, promote flower bud differentiation, promote more flowers, early flowers, full flowers, lodging resistance, and form a high-yielding plant shape.

Third, increasing pedicel and strong pod: when the plant grows into the flowering and pod stage, vegetable fruit Zhuangtieling should be sprayed before flowering, which can strengthen the flower and pedicel, enhance the harvest quality, prevent flower and pod shedding, increase flower and pod, promote fruit development, no empty shell, no blighted seeds. In order to strengthen the management of water and fertilizer at this stage, it depends on the suitable application of water and fertilizer in seedlings, topdressing in the early flowering stage of weak seedlings, and non-topdressing of strong seedlings to prevent overgrowth. Appropriate amount of phosphate fertilizer should be applied at flowering and pod stage. Water should be irrigated in time to ensure adequate soil moisture. To the field anti-spray application of the new high-fat film 600Mel 800 times liquid, anti-transpiration, anti-evaporation, anti-wilting, anti-shedding of flowers and pods.

Fourth, prevention and control of diseases and insect pests: soybean diseases and insect pests do great harm to the normal growth of soybean, and when serious, the yield loss is more than 30%. Soybean diseases include: soybean root rot, nematode disease, gray leaf spot, brown stripe, downy mildew, etc., pests include root miner, soybean aphid, heart borer, etc. Control methods: ① prevention in advance, selection of disease-free varieties, soil sterilization and insecticidal treatment during soil preparation; spraying sterilization and insect control agents + new high-fat film 800x solution before ② can effectively prevent the occurrence of diseases and insect pests In the period of occurrence of diseases and insect pests, ③ should be sprayed with targeted agents + 800x solution of new high-fat membrane according to the requirements of plant protection. (ancient wood)