Round vegetables, which are our common cabbage, cabbage, broccoli, and cabbage, and a nickname called cabbage, are annual or biennial herbs, which are the more common vegetables in our lives. Now Xiaobian talks about the cultivation techniques and fertilizer management of the round vegetables. First, the planting conditions Round vegetables like mild climate, both high temperature resistance and frost resistance. The temperature that can be adapted during the balling period is within 7-25 degrees. Of course, the best temperature is 15-20 degrees, and the seedlings can endure. The temperature is within -15 to 35 degrees. In the adaptation of planting round vegetables, it is necessary to ensure sufficient soil moisture and air humidity. Otherwise, it will affect the ball formation and reduce the yield of round vegetables. Moreover, the round vegetables are also vegetables with fertilizer, fertilizer and fertilizer, and need more nitrogen in the seedling stage and the rosette stage. The phosphorus and potassium fertilizers are needed during the ball-forming period, and the proportion of nitrogen, phosphorus and potassium in the growth period is about 3:1:4. On the basis of applying nitrogen fertilizer, appropriate phosphorus and potassium fertilizers can be applied, which is conducive to the increase of cabbage yield. Second, seedling technology The cultivation of round vegetables requires the use of seedling transplanting. The seedbed should choose a field that is convenient for irrigation and drainage, and the soil is loose and fertile. After that, deep plowing should be carried out, and appropriate amount of decomposed organic fertilizer and ternary compound fertilizer should be applied. Water should be poured before planting, and the soil moisture content should be measured when the soil moisture reaches a certain level. Leveling. When leveling the noodles, weigh 300 to 400 grams per mu, slightly compress the soil, spray 50% carbendazim 500 times, and cover the shade with a small arch shed or greenhouse. When the seedling grows to have three or four true leaves, a fake planting is carried out. During the nursery period, the sunshade net is used for sunshading at 9:00 am to 3:00 pm. Third, timely transplanting Timely transplanting is conducive to the promotion of root growth. The seedling stage of early maturing varieties is 20-25 days, and the mid-maturing varieties are 25 to 30 days. When the seedlings grow four or five true leaves, they are transplanted in time. Before planting, it is necessary to do a good job of ploughing the soil, whitening the soil, applying 1,000 to 2,000 kilograms of organic fertilizer per acre, 30 to 50 kilograms of ternary compound fertilizer as base fertilizer, and applying boron during creping. Two or three kilograms of fertilizer, twenty to thirty kilograms of potassium and magnesium sulfate. The width of the raft includes a ditch depth of 1.0-1.2 m. It is planted in two rows. The distance between each plant is about 30 to 40 centimeters, and 45,000 plants per acre are planted. When growing round vegetables in late autumn, cold winter and spring, the film should be covered on the ground to improve the water retention capacity. Fourth, fertilizer management The growth period of the cabbage is relatively long, so it is necessary to apply more fertilizer in the early stage of growth, especially in the rosette period. After one week of planting, a top dressing is carried out with 1% compound fertilizer or urea water, and then a thin application of fertilizer is applied every other week. The amount of fertilizer in the rosette period accounts for 50% of the total fertilizer application rate, and according to Growth situation, appropriate increase of phosphorus and potassium fertilizer dosage, apply 30 to 50 kg of high-quality ternary compound fertilizer per mu, then topdress every other week, and gradually increase the amount of topdressing, watering immediately after topdressing, which is beneficial to plants Absorb fertilizer to keep the soil moist. Five, pest control The main pests of cabbage include cabbage caterpillar, beet armyworm, rapeseed meal, and diamondback moth, which can be controlled by chlorantraniliprole; diseases include black root disease, smashing disease, viral disease, black rot, and blight. Applying the medicine before planting, this can effectively improve the effect of the medicine. First, it is sprayed with the root water with oxalic acid once or twice, and then used according to various diseases. Sixth, timely harvest When the top of the leaf ball of the cabbage is flattened, it can be harvested. At the time of harvest, two or three old leaves in the lower part of the leaf ball are left to protect the leaf ball and prevent it from being squeezed during transportation. Pressing the damage of the leaf ball is conducive to improving the commercial value of the leaf ball. Medical Equipment Disposal,Syringes Needles Sizes,Disposable Syringe,Insulin Syringe FOSHAN PHARMA CO., LTD. , https://www.pharmainjection.com
