Precautions for banana planting and fertilization: increase the application of potassium fertilizer after banana buds
Bananas are potassium-producing fruit trees. During their growth and development, the demand for potassium is quite large. After the banana buds, the amount of potassium absorbed reaches a peak. If the potassium supply is insufficient, the banana fruit can not be fully expanded, resulting in small fruit, thin, not full, poor coloration, light fragrance, not resistant to storage and preservation, and the leaves are easy. Infected with leaf spot, shortening leaf life, premature aging, reducing yield and reducing quality. Therefore, after the banana is bud, pay attention to the application of potassium fertilizer to ensure the supply of potash. The specific practices are as follows:
After the banana is buds, apply potassium fertilizer to the roots in time, and apply 0.25~0.35 kg of potassium sulphate or potassium nitrate per plant. Spread the potassium fertilizer evenly in the soil around the roots of the banana plants, and then pour a layer of about 8~10. The soil around the centimeter can be covered with potash.
You can also apply 3~5 kg of 300~500 times potassium dihydrogen phosphate aqueous solution or 800~1000 times Xingpeng Phosphate Potassium No. 1 solution to each plant, and evenly apply it to the soil around the roots of banana plants to completely penetrate the fertilizer solution. It is advisable not to go out into the soil around the roots.
In addition, fertilization at the roots is carried out at the same time as foliar topdressing, and potassium fertilizer is added from the foliage. After banana buds, it is necessary to spray 300~500 times of potassium nitrate and 500~600 times of amino acid potassium mixture every 3~10 days, or 0.3%~0.5% potassium dihydrogen phosphate, 800~1000 times potassium humate. Mixture, or 800~1000 times Xingpeng Phosphate Potassium No.1, 600~800 times KB potassium mixture. Spray continuously for 3~5 times, evenly spray all the leaves and banana fruit, and start to drop the drops of water.
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