Ten ways to increase soybean production

First, when the soil moisture is sufficient for seedling replanting and the time can catch up, soak the seeds with the original varieties for 2-3 hours and then replant; although the soil moisture is sufficient, the farming time is already late, you can speed up budding and replanting or replanting with precocious varieties; if the replanting time cannot catch up, seedlings with not less than one compound leaf can be taken and transplanted with soil as early as possible in cloudy or sunny afternoons, and watered immediately after planting to facilitate survival.

Second, pick the heart and beat the leaves

If there is a trend of overgrowth or greedy green late maturity, the top of the main stem can be removed about 2 cm at the early or full flowering stage of the soybean. Or make a long-handle knife with a sharp piece of iron or bamboo about 33 centimeters long. when overgrowth occurs, after the plant is sealed, cut off part of the overlapping leaves between the rows with the knife to improve ventilation and light transmission conditions, reduce field humidity and prevent plant overgrowth and lodging.

III. Application of rare earths

The protein content can be increased by 5.9%, the fat content by 8.5%, and the yield by 15% by 20%. ① seed dressing, 2 grams of rare earth per kilogram of soybean seed; ② foliar spraying, soybean seedling stage and early flowering stage, spraying with 0.03% rare earth solution 0.04% and 0.08% rare earth solution respectively.

4. Topdressing at early flowering stage

When the number of flowering plants in the soybean field reaches 10%, 10 kg of ammonium sulfate, 15 kg-20 kg of superphosphate and 100 kg of plant ash are applied per mu, which can generally increase the yield by 10%.

5. Spraying Yancheng Ling

From the full flowering stage to the podding stage of soybean, 20ppm-30ppm solution was sprayed continuously for 2 times (the interval between 7 days and 10 days), each time spraying 50 kg-75 kg per mu, the number of flowers per plant increased by 20%, the shedding rate of flowers and pods decreased by 10%, and the yield increased by 3%. 15%.

6. Spraying ammonium molybdate before and during flowering of soybeans, spraying 0.05% ammonium molybdate solution once each, spraying 25 kg-30 kg per mu before flowering and 40 kg-50 kg after flowering, generally increasing production by 5%. 10%.

7. Boron spraying

Spraying 0.2% borax aqueous solution during the flowering and podding stage of soybean can reduce the drop of flowers and pods and increase the yield by about 10%.

8. Spraying sodium bisulfite

Sodium bisulfite is a photorespiration inhibitor, which can effectively reduce the photorespiration intensity of plants, reduce dry matter consumption and promote yield increase.

9. Spraying triiodobenzoic acid

According to the experiment, in the early flowering stage and full flowering stage of soybean, the solution with the concentration of 100ppm and 200ppm was sprayed once respectively, each time spraying 50 kg per mu, generally, the number of flowers and pods increased by 25% 40%, the shedding rate of flowers and pods decreased by 7%, the number of pods per plant increased by 5-12.6, the weight of 100 seeds increased by 0.5g, and the yield increased by 5%-23% after 5-7 days of early maturity.

X. spraying paclobutrazol

The application of paclobutrazol could rapidly change the plant from vegetative growth to reproductive growth, dwarf the plant, shorten the internodes, thicken the leaves, thicken the leaves, and prolong the functional period of the leaves.