From the beginning of autumn, since then, the temperature has gradually decreased from the hottest, the weather is cool, the day is still hot, and the night is relatively cool. The farmer has: "Farming Chinese cabbage in the beginning of autumn and picking new cotton in the summer heat."
The goal of Chinese cabbage fertilization is to achieve the dual purpose of both high yield and high quality. According to the nutritional characteristics of Chinese cabbage, its demand ratio for NPK is 1:0.5:1.2, indicating that its demand for potassium is still greater than the demand for nitrogen. The vegetable production generally only pays attention to the application of nitrogen fertilizer, and often neglects the balanced supplement of potash fertilizer. Cabbage fertilizer has three principles to grasp.
1. Appropriate amount of nitrogen fertilizer should be used in practice. It is proved that the production of 1000 kilograms of fresh vegetables requires the absorption of about 2 kilograms of pure nitrogen from the soil. The nitrogen needed for Chinese cabbage can come from soil, organic fertilizer and chemical fertilizer respectively. In the application of large amounts of organic fertilizer under the conditions should be appropriate to reduce the amount of chemical nitrogen fertilizer. Applying proper amount of nitrogen fertilizer is beneficial to photosynthesis, which is the key to achieve high yield of Chinese cabbage. In some remote areas, there may be insufficient supply of nitrogen fertilizer, thin and light leaves, and tough tissues, which will affect not only the yield but also the quality. However, the actual amount of nitrogen applied in production in most areas exceeds the demand. Excessive application of nitrogen fertilizer not only makes the outer leaves of the cabbage thicker, has a poorer core, and has a low yield and quality, but also has a large water content in the leaves and is not resistant to storage after harvesting. It is rotted and susceptible to pests and diseases in the late growth stage. Therefore, in addition to the appropriate amount, the use of nitrogen fertilizer is also important. During the entire growth period of Chinese cabbage, the amount of nitrogen absorption at different stages is different. The seedling period is very small, accounting for about 2% of the total. During the rosette period, nitrogen increased to about 28%, and the nitrogen uptake during the filling period was the highest, accounting for about 70% of the total. Therefore, the application of nitrogen fertilizer should be light and heavy. The Chinese cabbage has a long growing period. Fertilizer management should be applied to the base fertilizer. In the old vegetable fields, the soil fertility is high, and organic fertilizer can be applied in an appropriate amount. The compound fertilizer is mainly phosphorus and potassium. In the new vegetable plots, it is necessary to re-apply organic fertilizers with the application of ternary compound fertilizers, but also pay attention to the application of organic fertilizers and potash fertilizers. In top-dressing applications, Chinese cabbage must control water-control fertilizers (mainly nitrogen-controlling) from the seedling stage to the rehabilitative planting stage. In addition to the special circumstances to raise the seedlings, it is generally necessary to plant seedlings during the rosette period and to use the assimilation organs on the ground (outer leaves). ) Robust growth, and the second to promote root growth and down the bar, to lay the foundation for the rapid growth and absorption of nutrients in the later period. The first time dressing is at the critical moment of the rosette period. It is advisable to apply topdressing nitrogen and potassium fertilizers at the same time, and at the same time, water and fertilizers enter the heart-filling period. The second topdressing of Chinese cabbage is in the early and middle period of Baoxin, and the main nitrogen fertilizer is topdressed up to two times to control the amount of nitrogen. The application of nitrogen fertilizer was stopped late in the contraction.
Second, to increase the proportion of application of phosphorus and potassium fertilizer in the base fertilizer and topdressing increase potassium fertilizer, is conducive to cabbage's heart and disease resistance. Pay attention to the application of potash fertilizer in the top-dressing of the pre-brain. If the supply of phosphorus and potassium fertilizer is insufficient during the period of the cabbage package, it will be difficult for the cabbage. At present, potassium fertilizer is often neglected in vegetable production. The appropriate amount of potassium is generally 12 kg per mu of potassium chloride or 16 kg of potassium sulfide. The best method of application is to divide the basal and topdressing fertilizers in two applications. The basal fertilizer is applied to the bottom of the burrows at the time of colonization. The topdressing is performed after the seedlings are terminated in the rosette stage and combined with nitrogen fertilizer and irrigation.
Third, we must pay attention to the supply of calcium Through the use of calcium sulfate in the base fertilizer, supplemented with calcium nutrition, which is to prevent the occurrence of Chinese cabbage "dry heart" disease is beneficial. Cabbage is a calcium-bearing crop, and calcium deficiency, especially excessive nitrogen application, can easily cause dry heart disease. Controlling nitrogen fertilizer and supplementing calcium nutrition are the core technologies for preventing Chinese cabbage "dry heart" disease. The method of calcium supplementation may be foliar supplementation besides the application of calcium-containing fertilizers, and spraying of 0.3-0.5% calcium chloride or calcium nitrate.
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Organic turmeric powder is made from pure turmeric rhizome, the main ingredient is curcumin. Curcumin is a strong antioxidant with powerful anti-inflammatory properties. Turmeric is known to support joint health, digestive system, and wound healing.
As a seasoning, turmeric powder has a long history in Asia. It can be used as a seasoning and yellow coloring agent. It is a commonly used seasoning in the family, used for curry powder, seasonings, etc.
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