High-yield fertilization technology of pepper
Fertility requirement of peppers:
1. The pepper is a vegetable with a large amount of fertilizer. It requires about 5.2 kilograms of nitrogen, 1.2 kilograms of phosphorus pentoxide, and 6.5 kilograms of potassium oxide for every 1000 kilograms produced.
2. The results from primary flowering to full flowering are the period of vegetative and reproductive growth of peppers, which is also the period with the most uptake of nitrogen, which accounts for about 34% of the total absorption; from flowering to maturity, the demand for phosphorus and potassium is highest at this time. About 50% of total absorption.
Nitrogen fertilizer demand law:
1. The spicy taste of pepper is related to the amount of nitrogen fertilizer, and the amount of application will reduce the spicy taste. For dried peppers, nitrogen fertilizer should be properly controlled to increase the proportion of phosphorus and potassium fertilizers.
2, nitrogen over-application, nutrient growth is too prosperous, the fruit will be due to the timely supply of calcium and produce umbilical rot.
3. Nitrogen fertilizer should be controlled during the early flowering period. Otherwise, the plants will be long and reproductive growth will be postponed.
The role of phosphorus and potassium:
1, phosphorus deficiency will cause buds, falling flowers. Phosphorus is an important factor in the development of flower buds.
2. In the result period, if the soil potassium is insufficient, the leaves will show potassium deficiency disease, and when the leaves fall, the fruit setting rate is low and the yield is not high.
Lack of trace elements:
Pepper has certain requirements for trace elements such as calcium, magnesium, boron, zinc, etc., and attention should be paid to supplementation during flowering.
"Three Falls" Prevention and Control:
1, high temperature, easy fall leaves, falling flowers, falling fruit in the rainy season.
2, to control the application of nitrogen fertilizer, a small water pouring, drought and cooling, timely removal of rain.
3, Sheng Lei spray 300 times borax solution, improve the fruit setting rate.
4. Before the rainy season arrives, spray once 30ppm production spirit and once 150ppm anti-dropping agent, separated by 8 days, and spray with potassium dihydrogen phosphate or zinc sulfate.
5. Spray 800-1000 times of carbendazim or chlorpromazine (thiophanate-methyl).
Reapply basic fertilizer:
5000 kilograms of chili per mu, 5000 to 8000 kilograms of organic fertilizer applied, and 40 to 50 kilograms of potassium sulfate compound fertilizer (3*15). Before planting, 60% base fertilizer was applied, and 40% of the planting was applied during planting.
Stable application of planting fertilizer and slow Miao Fei:
1. Apply 5 kilograms of urea as planting fertilizer before planting.
2, after the pepper slowly overshoot, if the leaves are yellow, hair seedlings are slow or not seedlings, can be applied 5 kg of urea to promote seedling growth; if the seedling grows strong, you can not fertilize.
Frequent application of root fertilizer:
1. After slow-onset pepper, spray 0.3% potassium dihydrogen phosphate and 0.6% urea solution once every 10-14 days.
2. From the breaking point, add 0.2% zinc sulfate and 0.2% ferrous sulfate mixture to spray 1-2 times.
3. Add 0.2% borax or 0.1% boric acid solution 2 times at the beginning of flowering.
4. Shenghua Shengguo period, adding 0.2% calcium nitrate 2-3 times.
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