Say goodbye to the hot summer, ushered in the fall of autumn, and autumn is the season of sweet potato harvest. How to manage the sweet potato in the field at this time? Let Gao Bobo share his planting experience for everyone!
Gao Bobo said that sweet potatoes are now in the fruit expansion period. At this time, they have done a lot of work. This year, sweet potatoes will be able to produce high yields. Gao Bobo summed up the secret of high yield of sweet potato in one sentence. One spray and two chasing three defenses, as long as you master these three techniques, you can increase sweet potato production by 30%-40%.
a spray
   One spray is to prevent the sweet potato's scorpion from growing, increase the sweet potato's resistance, control the growth of sweet potato scorpion and spray the plant growth regulator, spray according to the weather conditions, and apply less in dry weather conditions, in the case of rainy weather. More than one. Spray with 15% paclobutrazol wettable powder and 30 kg of water. If you need to spray again, please wait ten days to half a month.
Second chase
   Everyone must know that it is to topdress the sweet potato and apply the crack fertilizer. The purpose of top dressing is because the sweet potato is in the expansion period after the beginning of autumn, and needs more nutrient supply, in order to prevent the premature aging of the leaves of the potato leaves. Root-feeding fertilizer: Sweet potato is a potassium-type crop, so the top dressing can be sprayed with potassium dihydrogen phosphate 50g water sprayer.
Three defense
   It refers to the increase of pests and diseases of autumn sweet potato, we must pay attention to prevention and control, such as sweet potato root rot, black spot, virus disease, etc., insects have sweet potato hawk moth, leaf roller moth, cockroach, golden worm and so on.
Gao Bobo said that if you want to increase the output of sweet potato, you must be bold and careful. Finally, I will share two tips for you. First, I will have to water the weather after the autumn, but I can’t water it too much. It should be drained in rainy weather.
Another point of attention is that you can't turn it over. In the late stage of sweet potato, you can't turn it over and turn it over and cut it. There is no need to raise the mulch, and no mulch can be raised.
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