Ten Ways to Increase Soybean Yield, Teaching You to Easily Boost Production

1. Checking seedlings and reseeding When soil moisture is sufficient and time still allows, soak seeds of the original variety for 2-3 hours before reseeding; if soil moisture is sufficient but the farming season is already late, you can germinate seeds before reseeding or use early-maturing varieties for reseeding; if the reseeding time cannot be met, you can as early as possible on a cloudy day or a sunny afternoon take seedlings with no less than one compound leaf and transplant them with soil, watering immediately after planting to help them survive.

2. Pinching the growing tip and removing leaves

For soybeans showing a tendency toward excessive vegetative growth or late maturation with prolonged greening, you can pinch off about 2 cm from the top of the main stem at the early flowering stage or full flowering stage. Or use a sharp iron strip or bamboo strip about 33 cm long to make a long-handled knife; when excessive vegetative growth appears, after the plants close their rows, use the knife to shave off part of the overlapping leaves between rows, so as to improve ventilation and light penetration, reduce field humidity, and prevent excessive vegetative growth and lodging.

3. Applying rare earth

It can increase protein content by 5.9%, fat content by 8.5%, and yield by 15%-20%. ① Seed dressing: use 2 grams of rare earth per kilogram of soybean seed; ② Foliar spraying: at the seedling stage and early flowering stage of soybean, spray once each with rare earth solutions at concentrations of 0.03%-0.04% and 0.08% respectively.

4. Topdressing at the early flowering stage

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

5. Spraying yield-increasing ling

From the full flowering stage to the pod-setting stage of soybean, spray continuously twice with a 20ppm-30ppm yield-increasing ling solution (with an interval of 7-10 days), spraying 50 kg-75 kg per mu each time, which can increase the number of flowers per plant by 20%, reduce the flower and pod shedding rate by 10%, and increase yield by 3%-15%.

6. Spraying ammonium molybdate Before soybean flowering and during the flowering stage, spray once each with a 0.05% ammonium molybdate solution; spray 25 kg-30 kg per mu before flowering and 40 kg-50 kg after flowering, which generally can increase yield by 5%-10%.

7. Spraying boron

Spraying a 0.2% borax aqueous solution during the flowering and pod-setting stage of soybean can reduce flower and pod shedding and increase yield by about 10%.

8. Spraying sodium bisulfite

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

9. Spraying 2,3,5-triiodobenzoic acid

According to experiments, at the early flowering stage and full flowering stage of soybean, spray once each with solutions at concentrations of 100ppm and 200ppm respectively, spraying 50 kg per mu each time, which generally can increase the number of flowers by 25%-40%, reduce the flower and pod shedding rate by 7%, increase the number of pods per plant by 5-12.6, increase 100-seed weight by 0.5 grams, mature 5-7 days earlier, and increase yield by 5%-23%.

10. Spraying paclobutrazol

Applying paclobutrazol to soybean can rapidly shift the plant from vegetative growth to reproductive growth, dwarf the plant, shorten internodes, thicken stems, thicken leaves, make leaf color dark green, and prolong the functional period of leaves.