Pepper

1. Nutritional characteristics

The growth cycle includes four stages: germination stage, seedling stage, flowering and fruiting stage and fruiting stage. The germination period is generally about 10 days, the nutrients are mainly supplied by seeds, and the absorption capacity of young roots is very weak. The seedling stage, which takes 50 to 60 days, is the transition from vegetative growth stage to the stage of simultaneous vegetative growth and reproductive growth; Flowering and fruiting period, generally 10 to 15 days, during which the contradiction between vegetative growth and reproductive growth should be adjusted by water and fertilizer and other measures to achieve balanced growth and development; The bearing period, generally about 50 to 120 days, mainly reproductive growth, and continue to carry out vegetative growth, water and fertilizer demand is very large.

2, need fertilizer characteristics

The production of 1000kg pepper requires pure nitrogen (N) 3.5-5.4kg, phosphorus (P2O5) 0.8-1.3kg, potassium (K2O) 5.5-7.2kg.

The germination stage and seedling stage of pepper require less nutrients, and the results from the first flower to the full flower are the vigorous vegetative growth and reproductive growth of pepper, which is the period of the most nitrogen absorption, and the blooming stage to maturity, the most phosphorus and potassium demand.

Calcium deficiency in flowering period of pepper can lead to short plants, yellow parietal leaves, brown and rot in the lower part of the fruit, and calcium deficiency in later period, yellow fruits or umbilical rot. Peppers lack sulfur, grow slowly, have many branches, and bear little or no fruit. Zinc deficiency in chili peppers can cause growth retardation at the top, and leaves become yellow or fall off. (Taken from the network, if there is infringement, please contact to delete.)

3. Fertilization technology

Base fertilizer: Suitable to apply 6% organic fertilizer (1-1-4, 45) 50kg+ suitable to apply 40% special sulfur potassium fertilizer (16-8-16) 80-90kg; Or it is appropriate to apply 15% full biological organic fertilizer (9-2-4, 25) 50kg+ it is appropriate to apply 40% special sulfur potassium fertilizer (16-8-16) 70-80kg.

Topdressing: Topdressing suitable for strong 40% potassium sulfur fertilizer (16-8-16) 30kg.

Spreading should be combined with ploughing into the soil or furrow or hole covering.