What to pay attention to when planting soybeans in summer

What should we pay attention to when planting soybeans in summer? Please give guidance on planting soybean in summer with small plants and short growth period. in order to obtain higher yield in a limited time, field management should give priority to promotion and achieve "three early and two skillful". 1. Early seedling, uniform seedling summer soybean seedling stage is short, early seedling, early seedling. When the height of mu is 3 cm, the density of seedlings per mu is slightly more than 30,000, and the seedlings and seedlings should be completed at one time. 2. Early and mid-cultivated summer soybean has high temperature at seedling stage, more Rain Water, short seedlings and small ground coverage, so early and mid-ploughing should be done to break soil consolidation, keep soil loose and soft, prevent grass famine and promote seedling root growth. Generally ploughing 2MUR 3 times, it is required to end before flowering. 3. Early topdressing is more important for soybean to enter the stage of both vegetative growth and reproductive growth after flowering, and the amount of water and fertilizer required increases sharply, so it should be combined with 10 kg urea per mu in the early flowering stage. If it is found that the growth of soybean is slow, the leaves are small and dark, the time of topdressing can be reported 7-10 days earlier, and it is appropriate to apply fertilizer of 10 kilograms per mu. For phosphorus-deficient plots, 25 kg of superphosphate can be applied per mu at flowering stage. The weak seedlings can be sprayed with 0.3% dihydrogen phosphate solution during the flowering and podding stage, and the vigorous seedlings can be sprayed with 200 mg / kg liquid leaves to increase the yield. 4. Skillfully irrigated compound soybean will often encounter high temperature and drought weather during sowing or seedling stage. Plots with irrigation conditions can be properly watered to keep the soil moisture at about 20%. Timely watering at the flowering and pod stage can keep the soil moisture at about 30%, which is beneficial to the increase of yield. 5. Skillful control of diseases and insect pests during flowering with enemy killing or kung fu 1000 times liquid 75000kg / mu spraying 2Mel 3 times to prevent soybean heart borer, each time at an interval of 7MUE 10 days; using 1000 times solution of methotrexate or acaryl alcohol 30kg / mu to control red spider gray spot can be sprayed with 70% methyl topiramate, 60g / mu. Click to get more soybean planting technology click to get more grain and oil crop planting technology