How to fertilize when growing yam? Detailed explanation of fertilization methods
How to fertilize when growing yam? Please give an introduction. During the seedling stage and vine-running stage, yam mainly grows branches and leaves, so fertilizer should be mainly nitrogen. After budding, it enters the vigorous growth period, the underground tubers begin to expand, and the fertilizer requirement is relatively large. This is the key period for fertilization, and nitrogen, phosphorus, and potassium should be applied together. 1. Base fertilizer. Choose a good field, and before plowing apply per mu...
How to fertilize when growing yam? Please give an introduction
During the seedling stage and vine-running stage, yam mainly grows branches and leaves, so fertilizer should be mainly nitrogen. After budding, it enters the vigorous growth period, the underground tubers begin to expand, and the fertilizer requirement is relatively large. This is the key period for fertilization, and nitrogen, phosphorus, and potassium should be applied together.
1. Base fertilizer. Choose a good field, and before plowing apply 2000 kg-4000 kg of decomposed farmyard manure and 60 kg-80 kg of compound fertilizer per mu as base fertilizer, then plow the soil 30 cm deep and harrow it broken.
2. Topdressing. During the seedling stage, mainly use nitrogen fertilizer, applying 10 kg-15 kg of high-nitrogen-potassium compound fertilizer per mu. In early July, apply 20 kg-25 kg of high-nitrogen-potassium compound fertilizer per mu, and spray 0.25% potassium dihydrogen phosphate once. Starting from late July, spray 0.25% potassium dihydrogen phosphate 2-3 times, and in early August apply 20 kg-30 kg of nitrogen-phosphorus-potassium compound fertilizer per mu. During the tuber filling period, soil topdressing is generally not used; 0.25% potassium dihydrogen phosphate can be sprayed once to prolong the growth time of the vines.
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