How to grow potatoes with plastic film and how to grow potatoes can achieve high yield.

First of all, before the arrival of the "vernal equinox" solar term, the land should be sorted out and suf

How to grow potatoes with plastic film and how to grow potatoes can achieve high yield.

First of all, before the arrival of the "vernal equinox" solar term, the land should be sorted out and sufficient base fertilizer should be applied. Potatoes like rich and loose soil. Generally, 4,000-5,000 kilograms of fully decomposed farmyard manure can be used in high-yield fields, and holes or furrows can be opened at a spacing of 20 cm for sowing. Before sowing, potatoes must be sliced, and each slice has three intact buds. Generally, in about three weeks, potatoes will be unearthed.

First, how to grow potatoes with plastic film

1, first in? Equinox? Tidy up the land before the solar term and apply sufficient base fertilizer. Potatoes like fertile and loose soil, and each mu of high-yield field needs to use 4000-5000 kg of fully decomposed farmyard manure, 60-70 kg of 45% NPK controlled-release fertilizer, 0.5- 1 kg of multi-element fertilizer and 40 kg of potassium fulvate organic fertilizer. When ploughing deeply, you must plow the ground 30 cm, and then make cultivation ridges.

2. When planting, holes should be opened or furrowed according to the spacing of 20 cm. Before sowing, potatoes should be sliced, leaving three harmless buds in each slice. Then treat the wound with 300 times liquid thiophanate methyl, or seed with fresh plant ash, the sowing depth is generally about 5 cm, and the sprouting gate must be upward.

Generally, potatoes will be unearthed in about 3 weeks. At this time, seedlings must be released in time to prevent high temperature burning. After the seedlings are released, the air outlet film around the seedlings can be sealed tightly with soil to prevent the noon temperature from emitting from the broken film, scalding the potato seedlings and damaging the leaves of the potato seedlings.

4. After the seedlings are unearthed, the water demand increases, and if the soil drought is serious, it is not conducive to the normal growth of potato seedlings. At noon on sunny days, the seedlings can be irrigated in an appropriate way, and amino acid water-soluble fertilizer can be applied along the water, with a fertilizer of 5- 10 kg per mu. Be sure to spray foliar fertilizer regularly, use Takaso for potato seedlings of 25-30cm, and spray plant growth inhibitors in time.

Second, how to grow potatoes to achieve high yield?

1, seed selection is the premise to ensure high yield of potato, because many farmers still stay in the planting concept of more than ten years ago and have been planting the same variety. Although many people change varieties when planting, the quality of varieties will be seriously reduced if the planted soil is not updated. Potato varieties must be selected according to factors such as planting environment, time and weather.

2. Potato planting will rot easily if the weather temperature changes, so it is necessary to ensure the conditions of complete and neat seedlings when accelerating germination. Be sure to choose medium beans with disease-free and even bud eyes to germinate, cut them, dry them, put them in a cool place, spread a layer of sand, and then cover them with plastic film to keep warm.

3. Potatoes need a lot of light, but they have strict requirements on light and temperature. The suitable temperature for potato seedling stage is 20? C. The temperature of potato tuber growth should be controlled at 18-20? C or so, higher than 20? C, or below 18? C will affect the growth and development of potatoes.