What are the precautions for eggplant fertilization? Fertilization is a very important part when planting eggplant. It is important to know that eggplant is a favorite fertilizer. Therefore, it is especially important to increase the yield of eggplant by scientific fertilization and fertilizer application. Eggplant should adhere to organic fertilizer and fertilizer when fertilizing. As a supplementary fertilization principle, the specific fertilization matters will be explained below.
First, re-application of base fertilizer
1. Since the growth period of eggplant is relatively long, it is necessary to apply sufficient base fertilizer before planting, and the amount of base fertilizer is one-third or one-half of the total fertilization amount.
2. The decomposed organic fertilizer is chicken manure, horse manure, cow dung, pig manure and the like.
3. Apply 5000-6000 kg of decomposed organic fertilizer per mu, preferably 2/3 Pu Shi, 1/3 mixed ternary compound fertilizer 25-50 kg/mu, and concentrate into the planting ditch or planting hole.
Second, the top dressing
1. Eggplant has a long result period, so it requires multiple fertilization.
2. After the eggplant flowering period, the absorption of nutrients and nutrients increases rapidly. Therefore, the key period of topdressing is the harvest of “doors and eyes†to “four-door bucketâ€.
3. After the eggplant flowering period, topdress every 10-15 days, apply 15-20 kg of ammonium sulfate or 7.5-10 kg of urea per mu, or chase 500-600 kg of decomposed manure per acre.
4, when applying fertilizer, you can choose the method of ditch application and point application, try not to apply with water, prevent the active ingredients in the fertilizer from volatilizing, resulting in reduced fertilizer efficiency and fertilizer.
Third, root external fertilizer
1. Insufficient root external fertilizer will cause the leaves of eggplant to be deficient in nitrogen and yellow, and the main veins of magnesium deficiency are prone to chlorosis and yellowing, which often affects the yield of eggplant.
2. In the fruiting stage, according to the growth of eggplant plants, foliar spray fertilizer is used with 0.2%-0.3% urea, 0.2%-0.3% potassium dihydrogen phosphate, 0.1%-0.2% magnesium sulfate, etc., every 7- Spray once every 10 days and spray two or three times in a row.
Fourth, careful application of phosphate fertilizer
1. The eggplant seedlings have a large demand for phosphorus, and the amount of phosphorus absorbed during the fruit expansion period and the peak period is relatively reduced.
2. Applying more phosphate fertilizer in the eggplant seedling stage can promote the rooting of the eggplant plant and the survival after planting, which is beneficial to plant growth and increase yield.
3, eggplant fruit expansion period and the results of the application of less phosphate fertilizer or no phosphorus fertilizer, to promote the promotion of seed development in the fruit, causing the skin hardening, quality degradation, affecting the commodity value of eggplant.
Fifth, less fertilizer application
1. In the process of fertilizing eggplant, adhere to the principle of fertilization based on organic fertilizer and fertilizer.
2, the application of chemical fertilizers can not be too much, especially nitrogen fertilizer, so as not to cause the accumulation of nitrate in eggplant products due to excessive nitrogen, and endanger human health.
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