How can Chinese cabbage cultivation technology be used to ensure the high yield and profit cost of Chinese cabbage in 2017? The season of growing autumn cabbage has arrived. How to apply fertilizer can make the cabbage grow fast and taste? The base fertilizer prepares 100 kg of calcium per seed, 1000 kg of mixed organic fertilizer, and the fermentation on the pile must be fertilized and fermented 40 days before fertilization. 45% potassium sulfate compound fertilizer 75 kg, organic fertilizer selection of grass ash, cow dung, sheep manure, chicken manure and straw, etc., but no matter what kind of food can not use pig manure. If there is biogas fertilizer, it is even better. Foliar fertilizer preparation There are hundreds of kinds of foliar fertilizers on the market at present. No matter which one is used, it is necessary to use fast-acting, green and non-hormone-based foliar fertilizer. Regardless of which type of foliar fertilizer, as long as the product has a production license and a fertilizer registration certificate, and has the above characteristics. Fertilization method Spread the prepared base fertilizer evenly on the field, then turn the field once, mix the base fertilizer and soil thoroughly, then poke the pit, put the potassium sulfate compound fertilizer on the side of the pit, and plant the cabbage while the middle is separated by 7 Cm ~ 10 cm. The cabbage is planted, and the plant high-nutrient nutrient is applied to the water 1000 times to 1500 times, once every 3 to 5 days, and continuously for 3 times. When the cabbage is completely revived, the application of the fertilizer is started. The specific method is: the fertilization is applied to the water at a concentration of 1% to 2%, and is applied once every 7 days to 0 days. The growth cycle of the cabbage is prematurely per season. The number of days of medium maturity and late maturity growth is counted every 7 days to 10 days. Each season requires multiple times of fertilization, but it must be stopped 10 days before the market. Chinese cabbage has a long growth period, high yield, high nutrient demand, and the highest absorption of potassium, followed by nitrogen, calcium, phosphorus and magnesium. About 1000 kg of nitrogen (N), 0.94 kg of phosphorus (P2O5), and 2.5 kg of potassium (K2O) are required for every 1000 kg of Chinese cabbage. Due to the different growth and growth rates of Chinese cabbage in different growth stages, the demand for nutritional conditions is also different. The characteristics of total fertilizer requirement are: less nutrient absorption during seedling stage, and less than 1% of total absorption of nitrogen, phosphorus and potassium; The rosette period increased significantly, accounting for about 30% of the total; during the core period, the nutrients were absorbed the most, accounting for about 70% of the total. The proportion of three elements absorbed in different periods is different. The nitrogen absorbed during the germination period to the rosette stage is the most, the potassium is the second, the phosphorus is the least, the potassium is the most absorbed during the ball-forming period, the nitrogen is the second, and the phosphorus is the least, because the ball-forming period needs more. Potassium promotes the production of photosynthetic products in the outer leaves, while also requiring a large amount of potassium to promote the transport and storage of photosynthetic products from the outer leaves to the leaf cells. Adequate nitrogen nutrition is particularly important for promoting the formation of hypertrophic green leaves and improving photosynthetic efficiency. If the supply of nitrogen is insufficient, the plants will be short, the tissues will be coarse and severely reduced, and if the nitrogen is too much, the leaves will be large and thin. Untrue, poor quality, not resistant to storage. Adequate phosphate fertilizer is conducive to the formation of leaf ball. Potassium can increase the sugar content of Chinese cabbage and accelerate the ball-forming speed. If the supply of phosphorus and potassium is insufficient in the later stage, it is often difficult to form a ball. Chinese cabbage is a calcium-loving crop. When physiological calcium deficiency occurs under adverse environmental conditions, dry heartburn often occurs, which seriously affects the yield and quality of Chinese cabbage. How can Chinese cabbage cultivation technology be used to ensure the high yield and profit cost of Chinese cabbage in 2017? Fertilization technology The fertilization amount per mu of the Chinese cabbage is 2500-3000kg (or commercial organic fertilizer 350-400kg), nitrogen fertilizer (N) 13-16kg, phosphate fertilizer (P2O5) 5-8kg, potassium fertilizer (K2O) 10-12kg, organic Fertilizer is used as base fertilizer, nitrogen and potassium fertilizer are divided into base fertilizer and top dressing, and phosphate fertilizer is used as base fertilizer, and fertilizer and farmyard manure (or commercial organic fertilizer) are mixed and applied. 1. Base fertilizer. Applying the base fertilizer is the basis for the high yield of Chinese cabbage. Base fertilizer application of farmhouse fertilizer 2500-3000kg per mu (or commercial organic fertilizer 350-400kg), urea 4-5kg, diammonium phosphate 11-17kg, potassium sulfate 6-7kg, calcium deficiency soil application of 20kg calcium nitrate. 2. Topdressing. Rosette during the rosette period: the growth rate and growth of Chinese cabbage are large, which is an important period of yield formation. Adequate supply of fertilizer and water ensures that the growth of rosette leaves is the key to high yield. In general, the rosette can be applied with 6-7 kg of urea and 4-5 kg ​​of potassium sulfate. Top dressing during the balling period: The outer leaf of the leaf ring grows rapidly at the beginning of the ball, and the growth is the largest. The demand for nitrogen nutrients is particularly high, and the top dressing should be applied once again. In the middle of the ball, the leaves inside the leaf ball grow rapidly and enrich the inside, and the growth is also large. In order to prolong the function of the outer leaves and delay the senescence of the leaves, the top dressing should be based on the soil fertility. Generally, 8-10 kg of urea and 6-7 kg of potassium sulfate can be applied in the initial stage of the ball, and 6-7 kg of urea and 4-5 kg ​​of potassium sulfate can be applied in the middle of the ball. 3. Root dressing. Spraying 0.3% calcium chloride solution or 0.25%-0.50% calcium nitrate solution during the growth period can reduce the incidence of dry heartburn. Spraying 0.5%-1.0% urea or 0.2% potassium dihydrogen phosphate solution at the beginning of the ball can increase the vegetable yield of Chinese cabbage. Increase the value of goods. This article URL: How to fertilize Chinese cabbage cultivation technology to ensure the high yield and profit cost of Chinese cabbage in 2017 Smoke Detector,Carbon Dioxide Alarm,Smoke Alarm,Carbon Monoxide Alarm NINGBO TOMAN IMP. & EXP. CO., LTD , https://www.tdotmfiresolution.com
How to fertilize Chinese cabbage cultivation technology to ensure the high yield and profit cost of Chinese cabbage in 2017