When is the right time to plant chili peppers? What kind of medicine should I use? What are the key points of management technology?

Planting is to provide more space for plant growth. It is beneficial to the photosynthesis of plants. So when is the right time to plant chili peppers? What kind of medicine should I use? What are the key points of management technology? From Mr. Gao, a pepper grower in Shandong Province, it is learned that pepper planting should be carried out in sunny days, and the soil temperature is high in sunny days, which is conducive to the growth and survival of roots, and it is normal to produce some degree of temporary wilting after planting seedlings in sunny days. Seedlings planted in overcast and rain, although the plants do not wilt, but the soil temperature is low, due to human activities when planting seedlings, resulting in soil adhesion and hardening, not conducive to rooting, low survival rate, so slow seedlings in sunny days, slow seedlings in cloudy and rainy days, and no seedlings.

What kind of medicine should be used for chili peppers?

1. Pepper virus disease

There are four kinds of manifestations in the field: mosaic, yellowing, necrosis and deformity. It is generally characterized by flowers and leaves, and in severe cases, several symptoms appear at the same time, causing a large number of fallen leaves, flowers, fruits and necrotic growth points.

Prevention and treatment methods: use virus K, virus A, ribavirin or virulent 400 times 500 times in the initial stage of the disease, spray once in 7 days, spray 3 times in a row. Spraying 0.1% potassium permanganate or 20 mg / kg naphthylacetic acid or 1% superphosphate solution also has a certain control effect on mosaic virus.

2. Soft rot of pepper.

The main damage to the fruit, the disease mostly occurs on the green fruit, the pericarp initially showed a water-like dark green spot, and then turned brown and soft rot, with a bad smell, the internal pulp rotted, the fruit deformed, as if filled with muddy water in the bag, and some were called "a bag of water". In the later stage, the fruit dried and shrunk after dehydration, leaving only the gray pericarp hanging on the branches and vines, which fell off a little in case of external force.

Prevention and control methods: spray 72% agricultural streptomycin wettable powder 4000 times, 50% copper succinate wettable powder 500 times, 77% kill wettable powder in time before and after rain, spray once in 6-7 days, 3 times in a row.

3. Anthracnose of pepper

The main manifestation is that there are brown watery round or irregular disease spots on the fruit surface, the diameter is about 1 cm, most of them are sunken, the boundary between disease and health is obvious, and the spots are whorled with small black or orange-red particles. This kind of disease spot is easy to shrink and break when it is dry, hanging like a tiger skin, so it is also called "tiger skin disease". When the fruit is wet, the surface of the fruit overflows with red sticky matter, and the diseased fruit rotts and falls off. Often hung on fruit branches, high temperature and humidity are easy to occur, spread quickly, and often cause great losses within a week.

Prevention and cure method: after discovering the diseased plant, choose 80% anthrax Fumei wettable powder 800 times liquid or 75% chlorothalonil wettable powder 500 times liquid or 70% mancozeb wettable powder 400 times 500 times liquid or 70% methyl thiophanate wettable powder 600 times liquid spray in time, spray once in 7 days and 3 times in a row.

4. Pepper blight

When the black long spot is obviously formed, the disease spot expands rapidly around the stem, with a length of 3 to 5 cm or more, with obvious depression or constriction at the junction between the disease and health. The leaf tip or leaf edge produces a large disease spot which is nearly round like water, and then the whole leaf is soft rotten and withered. Most of the fruits began to occur from the pedicel, showing a water-soaked dark green, rapidly turning brown and soft rot, drying and shrinking without falling off in the later stage, and sparse gray-white mildew could be seen when wet.

Prevention and control methods: after the central diseased plant is found, you can choose 50% nail cream copper wettable powder 500g 600x liquid, 60%DTM wettable powder 500x liquid, 77% chlorothalonil wettable powder 500x liquid, 75% chlorothalonil wettable powder 500x liquid and other spray prevention and control methods, spray once every 10 days, continuous spray 2 times 3 times, serious once every 5 days, even spray 3 times.

What are the main technical points of general pepper planting management?

The main results are as follows: 1. The application of high-quality mature organic fertilizer before planting can reduce the phenomenon of insect pests, air damage or burning roots and seedlings caused by the application of organic fertilizer into the soil.

2. Application of chemical soil or biological agent at the time of planting: when applying soil at the point, copper hydroxide plus frost urea manganese zinc can be selected, and the soil can be prepared according to the ratio of ∶ soil = 1 ∶ 10, and then mixed evenly and applied at the hole. If we choose to apply biological agents to prevent dead plants, the disease resistance of plants can be improved by improving the soil environment and root growth without mixing the soil.

3. Soak the acupoint plate before planting: in order to ensure that the pepper seedlings are slow and fast, the root system is developed, and the plant is strong, 72.2% chloramphenicol water agent 600% 800 times solution, or 62.5% cyclamonitrile can be used. The 1500-fold solution of refined metalaxyl, the 1500-fold solution of 46.1% copper hydroxide water dispersible granules and 2500-5000 times thiazide water dispersible granules can be soaked in the acupoint disk, which can improve plant resistance and promote plant growth. at the same time, it can prevent and control insect pests in seedling stage.

4. The planting of hot pepper should not be too deep and too shallow, and it is not easy to slow down the seedlings if it is too shallow, and it is easy to cause root rot and dead seedlings if it is too deep.

5. Pepper seedlings should be planted with more soil, pay attention to reduce root damage, the planting depth should be cotyledon soil, and water should be irrigated immediately after planting.

6. root irrigation after planting: one of the agents such as copper hydroxide, quinoline copper, copper calcium sulfate and copper succinate can be selected and added with urea manganese zinc or metalaxyl or pyrazolyl or oxalyl mancozeb, 100-200 grams per tree.

7. Soil cultivation should not be too deep: ridging cultivation is recommended. If flat bed cultivation is needed, it should be noted that soil cultivation should not be too deep. Watering should not exceed the position of soil cultivation, which can prevent dead plants from appearing.

8. After planting chili peppers, we should pay attention to drainage and irrigation. In case of high temperature and drought, we must pay attention to drainage, so as to avoid waterlogging, bad roots and dead seedlings; timely understand and pay attention to weather changes and timely drainage during rainfall to avoid excessive Rain Water causing waterlogging, resulting in plant death.

9. Watering enough fixed planting water during planting, if the soil is dry, slow seedling water can be irrigated once, the amount of water is a little larger, but it must not exceed the ridge surface, because the root system of pepper is underdeveloped, exceeding the ridge surface is easy to cause waterlogging, resulting in death.