The latest requirements of Purple Potato on growth Environment
Purple potato can be planted in most parts of the country, which is mainly suitable for planting in black soil, sandy loam and yellow soil. At present, it is mainly planted in Liangguang region in the south, Hunan and Hubei in the middle, and Yunguichuan in the southwest. And Shandong and Shaanxi. So what are the specific requirements for the growth environment of this purple potato? we still need to analyze it together.
1. Soil
There are some requirements for the soil, the most suitable for sandy land, even other plants are not suitable for gravel land is also very suitable for the growth of purple potato. Purple potatoes like to be dry rather than wet, so some other good water-holding soils or clayey soils are particularly unsuitable for planting. Especially the fields that have been planted with rice are not suitable. It is suitable for planting in yellow soil and black soil.
2. Moisture
Do not like water, like dry, too much water, the underground rhizome is easy to rot or infected with bacteria, it is also possible to finally eat the rhizome, cooked after too much water, is thin, the taste is not good. And the purple potato absorbed mainly by fibrous root is afraid of stagnant water, which affects the absorptive capacity of the root system and leads to the inability to absorb nutrients. The planting yield of the land with high water content will be reduced, and the nutrient composition will be reduced.
3. Temperature
In general, the seedling time temperature should reach 15 degrees, not less than 12 degrees. Temperature affects germination, mainly by picking germinating branches to plant. When planting the temperature is about 20 degrees, because it is cutting planting, the temperature can not be too high, too high temperature is not easy to survive, cuttings are easy to die. In cool weather, the evaporation is small, the air humidity is high, the cuttings recover quickly and take root quickly. Keep the temperature cool for at least two weeks. So planting time is very important. During the expansion period, the temperature needs to be above 20 degrees, about 25 degrees.
4. Nutrition
The base fertilizer is about 1000 jin per mu, and it must be fully applied. In the early stage, it is mainly compound fertilizer or farm fertilizer with comprehensive nutrients. Nitrogen fertilizer can not be applied alone, too much nitrogen fertilizer, branches and leaves are too luxuriant, which is disadvantageous to rhizome expansion. The coverage area is too large and the field is difficult to manage. Phosphorus and potassium fertilizer was used when the rhizome began to swell. Fertilize twice during the whole expansion period, using potassium sulfate, diammonium phosphate, plant ash, livestock fertilizer and so on.
Although there are some requirements for the growth environment of purple potato, there are basically most places that want to adapt to the planting environment. There is also a growing environment that can not be so comprehensive. In fact, production is more to see whether it can be actually planted, but to see the real effect.
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