Myth #2: Leaving seedlings high, yields high Many vegetable growers always want to keep a few more plants while planting seedlings, planting denser plants, and think that seedlings can produce more. In fact, due to the low temperature in winter, weak light, poor photosynthesis, and less carbohydrate synthesis, only reasonable planting can produce high yields. Preventive measures: First, it is better to use vegetables and vegetables for wintering. Second, in order to make full use of space, it can adopt early-stage close planting, mid-stage sparse planting, and late-stage thinning methods to manage, with no crowding of the leaves, which can increase the total output and the total efficiency. Misunderstanding 3: High temperature, growing faster Many vegetable farmers believe that the purpose of building greenhouses is to keep warm, and vegetables with high temperatures will grow faster. In fact, vegetables have the upper limit of temperature, generally 25 °C ~ 32 °C. If the temperature is too high, the respiration will be accelerated, the body's operation and physiological activities will be disordered, and the plant will grow in length, but the yield will drop. Preventive measures: First, two vent outlets in the greenhouse are set to cool down in time. The second is strictly in accordance with the temperature required for the growth of various vegetables and the management of the temperature of each organ during the growth period, so as to prevent the growth of long-lived vinegar and long fruit. Misunderstanding 4: The vines grow, and the majority of growers think that the growth of the vines is a good trend. In fact, water leafy roots must be shallow, low nutrient yield, excessive growth of nutrients will inevitably affect reproductive growth, and production will instead decrease. Preventive measures: First, grasp the deep roots of weak plants at the seedling stage, control the water-controlling plants to promote roots, and absorb about 60% of photosynthetic products in the underground. The underground and above-ground absorption accounts for 50% each in the middle and later periods. The second is to ensure that the former consumption of nutrients accounted for 60%, reproductive growth accounted for 40%; each accounted for 50% in the middle; late reproductive growth accounted for 60% to 70%, vegetative growth accounted for 30% to 40%, that is a certain period of assimilation Leaf area, later control vines to promote fruit, increase production. Misunderstandings: Fighting for drugs and less disease Many vegetable farmers fight drugs once every 2 to 3 days in the late growth period of vegetables. They believe that drugs can be used to prevent the spread of diseases. actually not. Preventive measures: First, symptomatic spraying. It is best to choose copper-containing and zinc-containing agents when selecting drugs, which can both sterilize and enhance the ability of the plants to resist the invasion of bacteria, and can also promote crop growth. The second is to improve the ecological environment. For leafy, poorly ventilated, high humidity greenhouses, leaves should be cooled. The third is the death caused by soil-borne diseases, should pay attention to drug prevention at the seedling stage. If the source of the disease is neglected, the disease at the seedling stage, and the late stages of the attack, the germs have invaded the plant body, and the effect of fighting drugs is not good. Misunderstanding 6: Many times, many high income, many farmers believe that spending money to build a greenhouse, can not let it idle, so the deputy deceased with the main eaves, the main deputy deputy deputy deaf, planting more than one time, the results are often poor, low efficiency . Preventive measures: First, a large number of wintering, 1 in 1 year is better, Spring and Autumn is preferred in a year. The eggplant, pepper, tomato, and cucumber can be recycled for 1 year at low prices. The second is to leave some time in the summer to deepen the rain and salt, sterilize in the sun, extinguish the insects in the shed, and ripen the soil so as to ensure the high quality and high yield of the next crop. Amino Acids are biologically important organic compounds composed of amine and carboxylic acid functional groups, along with a side-chain specific to each amino acid. With biological significance, amino acids are important in nutrition and are commonly used in Nutritional Supplements, fertilizers, and food technology. Industrial uses include the production of drugs, biodegradable plastics, and chiral catalysts. Amino Acids Natural Amino Acids,Amino Acids Powder,Amino Acids Particles,Amino Acids Tablets SINOCHEM PHARMACEUTICAL CO., LTD , http://www.sinochemnutrition.com
Misunderstanding and Preventive Measures of Greenhouse Vegetable Management
One of the errors: Fertilization is more, grows faster Many vegetable farmers often put a lot of fertilizer on greenhouse vegetable fields in order to produce more output. In fact, the total soil salt content required for normal vegetable growth is 200010-6 to 300010-6. When the concentration exceeds 650010-6, reverse osmosis occurs in the root system and it will die. In particular, the temperature in the greenhouse is high and the humidity is high. The organic fertilizer is rapidly decomposed and the phosphorus availability is 2 to 3 times higher than that of the exposed land. The amount of nitrogen volatilization is large, excessive fertilizer can easily cause fertilizer damage. Preventive measures: First, greenhouses that have been planted for more than three years, chemical fertilizers are reduced by about 50%, and organic fertilizers must also be appropriately reduced. Second, the large salt concentration of the land, pay attention to the application of cow dung, humic acid fertilizer and EM bacterial fertilizer, in order to improve the soil carbon and nitrogen ratio, loose soil permeability, reduce salt and fertilizer. The third is supplementing boron, zinc, and magnesium to balance soil nutrients and create conditions for lowering input and striving for sustained high yields.