After three to five years of continuous cropping of greenhouse peppers, due to soil nutrient imbalance, acidification and aggravation of diseases and pests, plant growth and development are often unfavorable, such as withered seedlings, rotted roots, abnormally growing growth points, and the inability of new branches and leaves to grow, and multiple diseases simultaneously. Occurrence, etc., can lead to a total loss of the entire greenhouse. In response to the above problems, the following preventive measures should be taken.
The first is a reasonable rotation. It can be used in rotation with legumes, onions and garlic, and grass crops, or with paddy fields.
The second is to increase organic fertilizer. Green manure was properly planted in a timely manner, and decomposed organic manure was added to increase soil organic matter content and maintain the full supply of soil aggregate structure and nutrients.
The third is to adjust the pH of the soil. Apply 50 kg quicklime per acre.
The fourth is formula fertilization. Pay attention to the reasonable application of nitrogen, phosphorus, and potassium, mainly nitrogen fertilizer in the early stage and phosphorus and potassium fertilizer in the middle and later stages. Organic fertilizer and inorganic fertilizer rational allocation.
The fifth is to remove the diseased body in time. After the harvest is completed, the debris, etc., in the shed are thoroughly cleaned to reduce the sources of pests and diseases.
Six is ​​a smoked shed. Before the crop is planted, 250 grams of sulfur powder and 500 grams of sawdust are mixed and fumigated for 48 hours per 100 cubic meters of greenhouse to kill pests and prevent pests. The use of high-temperature stuffy sheds after harvesting the summer crops is more effective.
Whole grains are the most nutritious food group and the cornerstone of the diet. They have many benefits to human health, mainly including preventing diseases, promoting human health, preventing tumors, facilitating defecation and bowel clearing, improving brain skills, and helping people lose weight and shape.
1, prevention of disease: vitamin B1 in whole grains can prevent beriberi; Vitamin B2 can improve vision and prevent stomatitis; Vitamin C can relieve fatigue symptoms, lower limb soreness, prevent colds; Calcium prevents osteoporosis;
Potassium can stabilize blood pressure, improve mood, avoid muscle paralysis, depressed and restless with systemic weakness; Iron prevents iron-deficiency anemia, gastric ulcers and loss of appetite; And the trace element such as copper, zinc has to improve neurasthenia, insomnia and other symptoms, enhance appetite, improve the effect of weight.
2, promote human health: whole grains are the main source of human nutrition and energy, with the effect of maintaining health. Unsaturated fatty acids can soften cholesterol in blood vessels, reducing the risk of cardiovascular disease; Soy protein can regulate calcium metabolism, enhance bone density and prevent the formation of kidney stones.
Dietary fiber can effectively slow down the absorption of sugar and fat, reduce the rising speed of blood sugar and blood cholesterol content after meals, which is of great help to diabetic and obese people.
3, prevention of tumor: legumes are rich in protein, amino acids and B vitamins, etc., have a good anti-cancer effect, often eat can prevent tumor lesions; Vitamin A helps cells divide in the body, prevents cancer cells from forming, and helps the immune system respond and improve immune resistance.
Rich dietary fiber can shorten the time waste stays in the intestinal tract, reduce the odds of carcinogenic substances and intestinal mucosa contact, is conducive to prevent constipation and colon cancer.
4. Help defecation and clear intestines: magnesium and iron contained in whole grains can enhance the energy and energy of the body and accelerate the metabolism of waste in the body; Rich dietary fiber has the function of water holding, adsorption of water molecules in the intestinal tract, make the volume of feces increase, promote food residue or toxins in the intestinal tract operation, and quickly discharged from the body.
5. Improve brain skills: protein in whole grains can enhance the excitability and inhibition of cerebral cortex, improve brain metabolic activity and enhance efficiency; There are also eight essential amino acids, such as lysine, which activates the brain, helping the elderly with memory loss and children with developing brains. Rich in phospholipid, the development of brain nerve, activity has a good effect, can enhance memory.
6, good for beauty and beauty: the vitamin A contained in whole grains can keep skin and mucous membrane healthy; Vitamin B2, can prevent acne; Vitamin E has anti-free radical function, can improve skin, delay aging; Other ingredients, such as fat oil, volatile oil, linoleic acid, can moisturize the skin, make it smooth and delicate; Amino acids, cystine, etc. can make hair black and beautiful; Unsaturated fatty acids can reduce the accumulation of cholesterol in the body, promote metabolism to make hair easy to produce, prevent hair loss and baldness.
7, help slimming and shaping: some whole grains contain pantothenic acid, can release food energy, is an important component of fat metabolism; B vitamins also help the body burn energy; Rich in dietary fiber, can promote gastrointestinal peristalsis and digestive juices; Secrete, accelerate the body waste discharge, beneficial to thin body; Magnesium helps in the absorption of calcium and potassium, assists in the metabolism of sugars and fats, and maintains the body's acid-base balance.
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