(1) Nitrogen. The crop yield comes from photosynthesis. Nitrogen application can promote plant growth, increase leaf area, increase chlorophyll content, enhance photosynthesis intensity, and increase potato yield.

(2) Phosphorus. It can strengthen the accumulation of dry matter and starch in tubers, increase the starch content in tubers, increase the application of phosphate fertilizer, can increase the nitrogen production effect, promote root growth, and improve the ability of cold resistance and drought resistance.

(3) Potassium. Potassium can strengthen the metabolic process in the plant, enhance photosynthesis intensity, and delay leaf senescence. The application of potash fertilizer can promote the synthesis of protein, starch, cellulose and sugar in the plant, make the stem thicker, resist lodging, and enhance the cold resistance of the plant.

Wand Massager

Spice Novelties Co.,Limited , https://www.wholesale-adult-toys.cn