When planting leeks, it is necessary to do a good job of fertilizing, sowing, watering, fertilizing, planting, etc. This is an important step in planting leeks in greenhouses. Here we introduce the management skills of greenhouse leek cultivation.
Fertilizer management
Amaranth growth requires lower air humidity and higher soil moisture. The greenhouse air humidity is controlled at 60%-70%, and the absolute water content of the soil is controlled at 13%-15%. Generally, if the soil is soiled before the shed, it will not be watered. In order to promote the growth of the next leeks, water can be poured 5 days before the first leeks are harvested, 15-20 kg of ammonium nitrate per acre is dissolved and then poured with water, and then watered 5 days before each leeks are harvested. Add fertilizer.
Reasonable temperature control
Amaranth is a cool environment, and the suitable temperature for growth is 15 °C - 24 °C. In order to promote germination, the daytime temperature should be controlled at 18 °C -25 °C after shed, and the daytime temperature after germination should be controlled at 17 °C - 23 °C. The daytime temperature of the first leeks is controlled at 15 °C - 22 °C before the harvest, and the nighttime temperature is controlled at 10 °C - 12 °C. In the future, the temperature of each knife can be increased by 2 ° C -3 ° C, but not more than 30 ° C.
Foliar fertilization
During the growth period, 300 times of potassium dihydrogen phosphate or 40,000 times of gibberellin is sprayed every 7 days. When the amaranth grows to 15 cm, the vegetable stems and stems can be sprayed to make the stems of the plants thick, the leaves are thick, the leaves are fresh, the plants are flourishing, and the natural taste is strong. At the same time, it can improve the ability to resist disasters, reduce the amount of pesticides and fertilizers, and reduce residual poisons.
Rational spraying
Spraying a new high-fat film + vegetable Zhuangshen every 7 days during the growing period, but spraying a new high-fat film + vegetable Zhuangshen at the right time can prevent the infection of pathogens, improve the ability of disaster resistance and photosynthesis, reduce the amount of pesticides and fertilizers, and reduce Residual poison. At the same time, the stems of the leek can be thick, the leaves are fresh, the taste is strong, and the growth is strong.
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