The germination and emergence of Pinellia ternate need ground temperature above 10 ℃, and the optimum growth temperature is about 20 ℃. When the temperature is over 35 ℃, the above ground part of Pinellia ternate will wilt and die, causing a large area of lodging. When the temperature is below 5 ℃, the growth of Pinellia ternate will stagnate. When the temperature is below 0 ℃, pay attention to prevent frostbite.
The soil with high humidity is suitable for the growth of Pinellia ternata. In the summer evening, the well water ditch irrigation once can keep the soil moist on the one hand and reduce the soil temperature on the other hand. Of course, water should also have degree, pinellia both like water and afraid of water, can not have water, because water will cause poor plant growth, under the condition of hypoxia will cause rotten roots, rotten stems, seedling death, and eventually lead to tuber yield decline.
Pinellia is a shade resistant plant, afraid of strong light. If the light is too strong, it will burn the leaves of Pinellia ternate, which is easy to cause plant wilting; if the light is too weak, it is easy to cause the stem to be weak, resulting in seedling inversion. Therefore, pinellia should grow in a semi - shade environment, in moderate shading conditions, can grow luxuriant.
The root of Pinellia ternate is relatively shallow, and the moist, fertile and deep soil is suitable for its growth. Generally speaking, the soil requirements are not strict. Except for the saline alkali soil and the excessively sticky soil, it is not suitable to plant Pinellia ternate, other soils can basically grow, but the general soil moisture content is 25%, and the loose and fertile neutral sandy soil is the best.
Water and fertilizer management is the premise of increasing production of Pinellia ternate. Before planting, basic fertilizers such as bean cake fertilizer and manure can be mixed in the soil to ensure sufficient nutrient supply in the early stage of growth. After the plant has entered a prosperous and long period, pay attention to top dressing, which can be poured with liquid fertilizer. On the one hand, it is conducive to keeping the soil moist, on the other hand, it is conducive to promoting the growth of Pinellia ternate, so as to increase production.
