High-yield cultivation technology of black kidney bean

1. Variety characteristics The growth period is 90 days, the active accumulated temperature is 2000-2200 degrees, the seed coat is black, white embryo, white flesh, 100 seeds weight 19 grams, purple flowers, round leaves. Seed amount per mu is 3 kg, 20-22 seedlings per square meter, the main stem begins to branch at 4-5 cm from the root, with 4-6 branches. The general plant height is 35-45 cm, each plant has 30-60 pods, and each pod has 6 seeds. The average yield per mu is 150 kilograms, and the high-yield plot can reach 250 kilograms. There are basically no pests during the whole growth period.

2. Cultivation points have no strict requirements on the last stubble. Select hilly land, medium or low-medium fertility plots. The total amount of fertilizer nitrogen, phosphorus and potassium per mu is 7.5 kg or special soybean fertilizer 10 kg. Seeds can be mixed with soybean seed treatment agent 35% Duokefu seed coating agent. Sowing 4 cm deep, sowing on the ridge, 15 cm apart, 2 plants per ridge. For pre-emergence chemical weed control, use clomazone plus acetochlor or weed burning. It is required to shovel in time, shovel three times. At the beginning of the flowering period, field management is fully completed. At this time, leaf spray micro-fertilizer is mixed with potassium dihydrogen phosphate to promote early maturity, increase yield, and improve quality.

3. When harvesting, when the whole leaves of the crop are all withered and 2/3 of the leaves are falling off, they are hand-pulled every morning and threshed with ordinary soybean thresher. Broken particles are strictly prohibited during threshing. Then dry in the air for 1-2 days. Before warehousing, incomplete empty particles are controlled at 1%, impurities 1%, and moisture 15%.

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