In order to increase the production of purple sweet potato this year, the purple sweet potato will be stabilized in the growth period to promote the rapid growth of the purple potato seedlings after transplanting, so that the increase in the yield of the sweet potato pods will increase the yield and avoid the occurrence of small and deformed potato pods or even potatoes. In the long root system, the yield and quality have been severely reduced. To this end, based on the application of potash fertilizer, spray the mixture according to the following formula to increase the yield:
1. Formulation: spraying each mixture with Qiongsusu 2 bags of 20 grams, agricultural streptomycin 1 bag of 15 grams, imidacloprid 1 bag of 8 grams, vinegar 100 grams, mixed with 60 pounds of water to reduce the pests and diseases, The tubers are enlarged and smooth, and the yield is increased, thereby preventing chlorotic spots, mosaics, leaf curls, shrinkage, yellowing, cracking of potato pods, and insect infestation.
2, the use of methods and time; from the beginning of the Japanese Tito spray 10 days after the first time, after 20 days and then spray once. Do not use it for 20 days before digging.
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