Guidance for banana science fertilization in autumn and winter of 2015
(5) Banana 1. Fertilization problems and fertilization principles In view of the widespread neglect of organic fertilizer application and soil fertility in banana production, the lack of trace elements such as calcium, magnesium and boron, the insufficient total fertilizer and excess phenomenon, and the re-application of potassium fertilizer but the time is too late, the following fertilization principles are proposed: (1) Fertilization is based on the principle of “reasonable distribution of fertilizers and key application during key periodsâ€; (2) NPK fertilizer application, rational distribution of fertilizer according to growth period, increase fertilizer dosage after flower bud differentiation period, pay attention to potassium fertilizer application, increase calcium and magnesium fertilizer, supplement lack of trace element nutrients; (3) Fertilization combined with irrigation, using fertigation techniques can reduce the amount of fertilizer input by about 15%; (4) Add lime to adjust soil pH during soil preparation, and supplement soil calcium nutrition and kill harmful bacteria. 2. Fertilization advice (1) The banana plantation with an output of more than 5,000 kg per mu: depending on the type of organic fertilizer, the traditional organic fertilizer is 1000~3000 kg/mu, and the amount of decomposed poultry manure does not exceed 1000 kg/mu. Nitrogen fertilizer (N) 45~60 kg/mu, phosphate fertilizer (P2O5) 15~20 kg/mu, potash fertilizer (K2O) 70~90 kg/mu. (2) The banana plantation with an output of 3000-5000 kg per mu: the traditional organic fertilizer is 1000~2000 kg/mu, and the amount of decomposed poultry manure does not exceed 1000 kg/mu. Nitrogen fertilizer (N) 30~45 kg/mu, phosphate fertilizer (P2O5) 8~12 kg/mu, potash fertilizer (K2O) 50~70 kg/mu. (3) The banana plantation with an area of ​​less than 3,000 kg: the traditional organic fertilizer is 1000~1500 kg/mu, and the amount of decomposed poultry manure does not exceed 1000 kg/mu. Nitrogen fertilizer (N) 18~25 kg/mu, phosphate fertilizer (P2O5) 6~8 kg/mu, potash fertilizer (K2O) 30~45 kg/mu. According to soil acidity, apply 40~80 kg of lime per acre before planting, 25~30 kg of magnesium sulfate, and mix it with organic fertilizer; orchard lacking boron and zinc, apply borax 0.3-0.5 kg per acre, zinc sulfate heptahydrate 0.8~1.0 kg. After the banana seedlings are planted and lived until the flower buds are differentiated, about 60% of the total fertilizer is applied to the nitrogen fertilizer, 50% of the phosphate fertilizer and 20% of the potash fertilizer; before the flower bud differentiation period to before the buds, the application is about 45% of the total fertilization amount. Nitrogen fertilizer, 30% phosphate fertilizer and 50% potassium fertilizer; 35% nitrogen fertilizer, 20% phosphate fertilizer and 30% potassium fertilizer after bud extraction. In the early stage, water and fertilizer can be applied or applied. The flower bud differentiation period begins with the application of a ditch or a hole, and a total of 7-10 times of fertilization. This article URL: Autumn and winter banana science fertilization guidance Mechanic Gloves,Machine,Mechanic HOLIK ASIA GROUP CO.LTD , https://www.holikasia.com