Reasons for fertilizer deficiency in pepper-bearing soil: insufficient fertilization or partial fertilization leads to soil nutrient imbalance or improper fertilization, resulting in pepper falling flowers and fruits.
Serious pests and diseases: pests and diseases directly consume a lot of nutrients in pepper, resulting in insufficient nutrition of flowers and fruits, resulting in more flowers and fruits falling.
Poor control of summer shoots: the summer temperature is high, the fertilizer efficiency is fast, and fruit trees are prone to shoot in summer. At this time, if the control is not effective, too many summer shoots will consume a lot of nutrients, leading to falling flowers and fruits.
What are the causes of pepper flowering and fruit dropping? Drought soil is short of water: due to the occurrence of drought in spring and summer, soil moisture is reduced. When the flowering and fruiting of pepper enter the critical period of water demand, if the soil is short of water, it will inevitably lead to serious flowering and fruit drop of pepper.
Too much rain during flowering: Fruit trees are prone to long-term continuous rainy weather during flowering, which is extremely unfavorable for pollination, and the quality of pollen is poor, which makes more flowers fall off in advance.
Too high or too low temperature: abnormal temperature is easy to cause shedding, such as low temperature in early spring will make a large number of peppers fall out of flowers and fruits; Because high temperature respiration consumes a lot, it hinders flowering and pollination; Low temperature can also affect flowering and pollination.
Insufficient light: insufficient light affects the synthesis and transportation of substances and is easy to cause shedding. What are the reasons for the mature fruit drop of Zanthoxylum bungeanum? There are many reasons for the fruit drop of Zanthoxylum bungeanum, which are related to pests, water and fertilizer. After Zanthoxylum bungeanum gets sick, its photosynthetic capacity decreases and its fruit falls off.
After pepper is infected, pests will eat the leaves, and the growth of pepper will not appear fruit drop phenomenon. During the curing period, if you water too much or fertilize improperly, the pepper fruit will also fall off.
How to deal with the serious fruit drop of pepper? The rapid growth period of Zanthoxylum bungeanum young fruit is the key period of nutrient demand. At this stage, young fruit will appear red and serious physiological fruit drop due to nutritional competition and physiological imbalance.
The application of Guoguang plants in the young fruit stage of Zanthoxylum bungeanum can effectively improve the fruit setting rate and reduce the phenomenon of fruit dropping; At the same time, it can promote the growth and expansion of young fruits, and the pepper particles are large and the quality of pepper is high after use. What medicine should be used for topdressing multi-element organic fertilizer, such as farmyard manure. For adult fruit trees, farmyard manure was applied to each plant, and 0.5- 1.5 kg of calcium superphosphate and 0.5- 1.5 kg of potassium chloride were added. Before fertilization, it is best to mix water into farmyard manure to facilitate the absorption of trees.
What medicine should be used to make peppers bear more fruits? It is reported that soaking flowers with15 ~ 20mg/l 2,4-dichlorophenoxyacetic acid before or after flowering or spraying 30 ~ 50mg/l p-chlorophenoxyacetic acid when the flowers are in full bloom can make peppers bear more fruits.
Prevention and control method of pepper fruit drop 1, timely prevention and control of pests and diseases: after pepper withers, it is the peak of pests and diseases, such as jumping beetle, scarab, aphid, longicorn beetle, leaf moth, ant, leaf rust, leaf rot and shoot blight, which harm pepper and cause fruit drop.
It can be sprayed with high-efficiency and low-toxicity pesticides such as 99 pesticide, Nifalin, Suoliba, Liqiangniuling, Baichongling and Hexagonal, as well as nutrients such as lodging prevention, fertilizer essence and potassium dihydrogen phosphate, and the control effect is over 90%.
2. Fertilize in time to supplement nutrition: two measures can be taken: one is to cut off the empty branches (non-fruiting branches) that grow too vigorously on pepper trees to reduce nutrient consumption; Second, topdressing multiple organic fertilizers (farmyard manure). For mature fruit trees, farmyard manure is applied to each plant, and 0.5 1.5 kg of calcium superphosphate and 0.5 1.5 kg of potassium chloride are added.
3. Adjust moisture in time: Zanthoxylum bungeanum is drought-tolerant and least waterlogged. Water accumulation or flood erosion can kill Zanthoxylum bungeanum. When there is too much rain, pepper is easy to grow and drop fruit, so measures should be taken immediately to adjust it; Low-lying fluvo-aquic soil with serious water accumulation around it should be drained in time.