Pollution-free cultivation techniques of Color Pepper in greenhouse

Colored pepper has the advantages of bright color, large fruit, plump flesh and rich nutrition, which is favored by many people and has considerable planting benefits. Colored pepper has high temperature and moisture requirements. It is thermophilic and humid, and is not suitable for open field cultivation. The key points of color pepper planting technology are as follows:

color pepper

I. Seedling

1. Variety selection. Color pepper varieties with positive fruit shape, thick flesh, large size, bright color, disease resistance, low light resistance, low temperature resistance or high temperature resistance should be selected.

2. Seed treatment. If the repurchased seed is imported coated seed, it can be sown directly; otherwise, it should be treated to ensure that the seedlings are neat and free of germs. General color pepper seeds soaked in 0.1% potassium permanganate solution for 30 minutes, during which to stir, and then washed with clean water 3-4 times, and then soaked in 55℃-60℃ water and constantly stir, water temperature dropped to 30℃ when standing for about 3 hours, and then washed with clean water 2-3 times, with a good disinfection of wet sand wrapped color pepper seeds placed in 25℃-30℃ thermostat for germination, when about half of the color pepper seeds sprout can be sown.

3. Using plug seedling. The holes are filled with prepared nutrient soil or peat soil, and after water is poured through, the seeds are sown after water infiltration. Sow a seed of pepper in each hole, the radicle is downward when sowing, cover it with about 1cm soil after sowing, and then water it thoroughly.

4. Seedling management. In order to promote neat emergence, 30℃-35℃ during the day and 15℃-20℃ at night. After emergence, the temperature should be lowered appropriately to prevent the pepper from growing. 25℃-28℃ during the day and 14℃-17℃ at night. Pay attention to watering. In sunny weather, water once a day. When the temperature is too high, appropriate cooling measures such as the use of sunshade nets should be taken. In order to promote the growth of pepper seedlings robust, can be in 3-4 true leaves to pepper spray once 25% Zhuansu 0.006% solution.

II. Planting

1. Preparation before planting. Combined with tillage, base fertilizer is applied first. About 1500-2000kg of decomposed farm manure, 40-50kg of diammonium phosphate and 40-50kg of binary compound fertilizer are applied every 667 square meters. Tillage by hand or rotary tiller to mix soil and fertilizer thoroughly. Then the windows and doors of the greenhouse are closed, and the greenhouse is covered with high temperature for 7-10 days to kill pests and diseases in the surface soil layer in the greenhouse.

2. Planting. The width of the ridge surface is 100-110cm, the width of the ridge groove is 60-70cm, and the depth of the ridge groove is 20-25cm. Double rows are planted in each plot, and the planting spacing of color pepper planting rows is 75- 80cm * 45- 50cm. The seedling age is 4-5 true leaves.

color pepper

III. Post-planting management

1. Temperature management. 23℃-28℃ during the day and 15℃-18℃ at night; the highest temperature during the flowering and fruiting period of color pepper should not be higher than 30℃ during the day and 17℃-18℃ at night. Too low or too high a temperature will affect the flowering of pepper.

2. Plant adjustment. Colored pepper plants were fixed by hanging wire traction. Under the first flower of the colored pepper, two healthy branches are selected and reserved as the main branches of the colored pepper plant, one branch and one fruit are reserved at the branch of each main branch, the rest branches, flowers and fruits are removed as soon as possible, attention is paid to removing abnormal fruits, and yellow leaves, old leaves and diseased leaves at the lower part of the plant are timely removed at the later stage of growth.

3. Fertilizer and water management. Colored pepper planting before watering foot water or planting water, slow seedling no longer watering. During the growth period, according to the soil moisture, pay attention to controlling the amount of watering, and adopt the method of drip irrigation or small water irrigation to ensure that the color pepper plants do not lack water and grow normally. When applying enough basal fertilizer, it is generally no longer necessary to apply topdressing. In the middle and late stages of growth, a small amount of fertilizer combined with watering, application of available potassium and nitrogen fertilizer and strong root-strengthening agent can also be sprayed with high-efficiency amino acid liquid fertilizer; every 1-2 fruits are harvested, 0.1% potassium dihydrogen phosphate is sprayed once to ensure the continuous growth and fruiting of color pepper plants.

IV. Pest control

1. Disease control. Seedling easy to suffer from blight, damping-off disease, etc., seedbed can be sprayed with 72% 800-1000 times solution of Prolik before seeding of color pepper; growth period easy to infect leaf mold, root rot, blight, etc., can be controlled with 500 times 50% methyl thiophane wettable powder solution, or 600 times 75% chlorothalonil wettable powder solution, or 500 times 64% disinfectant alum solution.

2. Pest control. Common pests of pepper are aphids, whiteflies and so on. The seedling stage can be controlled by 1500 times 1.8% alfodine solution or 1500 times 1.8% abatin emulsifiable solution, and the growth stage can be controlled by 2500-3000 times 10% chlorfenapyr wettable powder solution or 1500 times 20% miaoli solution.