How to nurse potatoes after flowering
1, potato flower
It is feasible to pick flowers when potatoes bloom. Potatoes will affect the digestion of nutrients when they bloom, and will affect the growth of plants if they are not removed. Pruning after the buds grow will increase the yield of potatoes. However, care should be taken not to hurt the main stems and leaves when removing flower buds, so as to avoid the plants growing in vain.
2, potatoes leave flowers
Under the condition of large planting area and sufficient fertilization, it is not necessary to pick flowers. After potato buds appear, we must strengthen intertillage and shallow hoe the soil, and the soil height is 15 ~ 20 cm to prevent tubers from being exposed to the sun. Potatoes are usually planted twice. When the top of the stolon begins to swell in the early bud, the thickness of the first culture is 3 ~ 4 cm to prevent the stem from penetrating the ground to form new branches. The second time, during the flowering and swelling period of potatoes, the thickness of covering soil is 4 ~ 5 cm to prevent potato chips from sticking out of the ground.
3. Before and after flowering
Before and after the flowering period of potato, it is the peak of its expansion, which requires a lot of water, but if it is short of water at this time, it will seriously affect the yield; When the rainfall is low, irrigation should be done in time to make the soil moisture reach 70% ~ 80%, but it is not necessary to overflow the ditch top. After the potato blooms, you can pick the flowers, concentrate the nutrition on the potato, and make the potato grow more swollen.
4, potato flowering can be preserved.
When the potato planting area is large and the fertilizer is sufficient, it can be preserved after flowering without picking flowers. Because it doesn't consume too much nutrients for potatoes, it doesn't have much impact on the final yield of potatoes.
Potato field management
Potato plants are divided into aboveground and underground parts. The aerial part has aerial stems, pinnate compound leaves, buds and fruits. The underground part has underground stems, roots, stolons and tubers. Whether the aboveground part bears fruit is related to the variety and external environmental conditions. Different planting time of the same variety in different years and in the same year will affect whether it blooms or bears fruit. The products of potato cultivation are tubers produced underground, which are formed by the swelling of the top of stolons. They have many characteristics of aboveground stems. Stolon, tuber and aboveground stem can be said to have no essential difference and can be transformed into each other under certain environmental conditions.
Fertilize soil or land
Potatoes are generally fertilized according to the principle of "organic fertilizer as the main fertilizer, supplemented by chemical fertilizer, heavy base fertilizer and early topdressing". Because organic fertilizer is rich in organic matter, it is beneficial to fertilization, loosening soil, improving soil fertility, and more conducive to potato tuber expansion and root growth. In the process of potato growth, flowering period is the period when water and fertilizer are most needed, and it is also the season when the temperature rises and the rainfall increases, and it is also the stage when organic fertilizer gradually matures, decays and releases nutrients. At this time, the conversion benefit of organic fertilizer and inorganic fertilizer in base fertilizer is expanding continuously, which meets the demand for nutrients during potato growth and promotes the growth and development of plants. This is the purpose of re-applying base fertilizer.