Promoting Zhuangsu: In the potato bud stage to the flowering stage, spraying 60-120 mg/L of the auxin (the bud stage concentration is low) can inhibit the growth of the aerial parts of the plant, increase the yield, and increase the large and medium potato stalks. proportion.
Chlormequat: In the bud stage to the initial flowering stage, using 2,000 to 2500 mg/L of chlormequat solution on the foliar spray, 50 liters/mu, the aboveground part can grow vigorously, avoiding the lengthening, and forming the tuber early. Increase the proportion of large tubers and increase production.
Uniconazole: Spraying 30~70 mg/L of uniconazole solution on the foliage of the potato flowering stage (that is, when the potato pieces are swollen), the stems can be shortened, the leaves are dark green, and the aboveground growth is delayed. Block growth accelerates and increases the number of potato chips.
Paclobutrazol: When the potato plant height is 25-30 cm, spray the leaf surface with 150-200 mg/L paclobutrazol solution, use 15% wettable powder 24 to 32 g per acre, or 25% emulsifiable concentrate 14.4 to 19.2 ml, add water. 40 liters, sprayed evenly onto the leaves of the plants with a sprayer to control the length of the stems and leaves. At the end of the potato plant growth to the potato phase, spray 100 mg / liter of paclobutrazol solution, the dosage of 50 liters / acre, can promote tuber hypertrophy, increase the proportion of large and medium potatoes, increase production. Pay attention to the choice of concentration before use, the dosage should not be too large, so as not to affect the growth of the crop after the crop.
Chlormequat: In the bud stage to the initial flowering stage, using 2,000 to 2500 mg/L of chlormequat solution on the foliar spray, 50 liters/mu, the aboveground part can grow vigorously, avoiding the lengthening, and forming the tuber early. Increase the proportion of large tubers and increase production.
Uniconazole: Spraying 30~70 mg/L of uniconazole solution on the foliage of the potato flowering stage (that is, when the potato pieces are swollen), the stems can be shortened, the leaves are dark green, and the aboveground growth is delayed. Block growth accelerates and increases the number of potato chips.
Paclobutrazol: When the potato plant height is 25-30 cm, spray the leaf surface with 150-200 mg/L paclobutrazol solution, use 15% wettable powder 24 to 32 g per acre, or 25% emulsifiable concentrate 14.4 to 19.2 ml, add water. 40 liters, sprayed evenly onto the leaves of the plants with a sprayer to control the length of the stems and leaves. At the end of the potato plant growth to the potato phase, spray 100 mg / liter of paclobutrazol solution, the dosage of 50 liters / acre, can promote tuber hypertrophy, increase the proportion of large and medium potatoes, increase production. Pay attention to the choice of concentration before use, the dosage should not be too large, so as not to affect the growth of the crop after the crop.
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