What are the management techniques for the flowering period of potatoes?

Potato is a common crop in China, which is planted in almost every house. if you want to grow potatoes well, you need to do a good job in basic work such as water, fertilizer, diseases and insect pests. What are the management techniques of potato flowering?

1. Proper topdressing

After the potato blossoms, it is necessary to apply nitrogen fertilizer to the short, yellow and weak potato seedling fields, generally applying 5 kg urea per mu, plant by plant; for fields with vigorous plant growth, we should mainly apply phosphorus and potassium fertilizer, 15 kg per mu of phosphorus fertilizer and plant ash, which can be properly adjusted according to potato growth and land conditions to ensure the nutrient demand of potatoes during flowering.

For the plots with weak plant growth and yellowing leaves, foliar fertilizer should be sprayed in time, choose a sunny afternoon, spray 0.3% potassium dihydrogen phosphate and 0.3% manganese sulfate mixture or 0.3% urea, the concentration should not be too high, so as not to burn the plant leaves. It is necessary to spray paclobutrazol in time to regulate and control to promote the transformation from vegetative growth to reproductive growth and prevent overgrowth.

2. Watering in time

Flowering should be timely watering, generally less rainfall, timely irrigation, so that the soil water content up to 70% 80%, in order to facilitate the formation and expansion of potato pieces, water should be irrigated along ridges and furrows, it is best not to spread over the top of the ridge to prevent soil skin from hardening.

3. Timely ploughing

When the potato is in bud and in full bloom, loosen the soil once respectively. Among them, the soil height of 3-4cm in the first time and 4-5cm in the second time is the best to promote the expansion of tubers and prevent the tubers from being exposed to the sun.

4. Hit the top in time

After budding, potatoes should be topped and removed as soon as possible. When removing the buds, do not hurt the leaves of the main stem.

5. prevention and control of diseases and insect pests

Potatoes enter the budding stage, there will be a variety of diseases and insect pests. Once it is found that the central diseased plant can be controlled with fungicides such as copper sulfate and chlorothalonil, or mixed spraying of insecticides, fungicides, plant growth regulators, micro-fertilizers, etc., 10% imidacloprid wettable powder 20g 30g + 58% metalaxyl manganese zinc wettable powder 100g + 15% paclobutrazol 30g 40g + 0.1% potassium dihydrogen phosphate 100g to spray 40 litres of water in the morning and evening.

Generally speaking, the flowering period of potatoes is easy to manage, as long as picking buds in time, doing a good job of water and fertilizer, pest control and other basic work.