Sheltered Vegetables Management

Irrigation and irrigation irrigation can increase soil heat capacity, prevent ground temperature from falling, stabilize near-surface atmospheric temperature, and restore frozen tissue to function. After being cooled, the shed vegetables can not be immediately heated in the closed shed, and only the air can be cooled to reduce the temperature in the shed so as to prevent the temperature from rising sharply and causing freezing of the frozen tissue. Artificial water spray can increase the air humidity in the shed, stabilize the temperature of the shed, and can inhibit the evaporation of water from the frozen tissue and promote water absorption. After cutting off the cold damage caused by the dead-tree vegetables, the frozen branches and leaves should be cut off in time to prevent the mildew from being induced by the frozen tissue. A shady shed is placed inside the shady shaded greenhouse to prevent the frozen vegetables from losing their vitality due to the light. After quick-improving fertilizer-freezing of greenhouse vegetables, appropriate amounts of available fertilizers can be chased to facilitate the rapid absorption of plants, increase the concentration of plant cell fluids, and increase heat resistance and ability to restore growth.

Spinach sowing skill management

After spinach sowing, the greenhouses are buckled. Generally, two waters are seedlings, and water is poured 10 days after emergence. After the two true leaves of spinach are unfolded, the number of leaves, leaf weight, and leaf area increase rapidly, and 3 to 4 leaves maintain the soil. Wet, 25 kg of ammonium bicarbonate per acre topdressing, shallow smashing once, between the dense seedlings, appropriate water control. In November, "Snow" was concerned about insulation before and after, at noon for air release. In order to be listed in advance, a small shed can be set up during the winter season. After late January, spinach begins to turn green, and it is necessary to gradually release the wind. The temperature of the greenhouse is not more than 25°C, the temperature is high, the spinach plants are thin, the leaves curl, the quality is reduced, and the yield is reduced. And pay attention to pouring back to Qingshui, with the water top 25 kg of ammonium bicarbonate, after every 7 to 10 days pouring a water, and then topdressing once.

Cleverly Preventing Beanstalk

Spraying drugs should adhere to the principle of governing buds and spraying larvae in flower buds during flowering. Spraying is best performed when the calyx is open from 8 to 10 o'clock in the sunny morning. After the tsetse bean pods are more than 10 centimeters long, they can be sprayed once again to kill the newly hatched larvae and the young larvae that enter the pups. The spray agent can be selected from kungfu 1500 times or avermectin 1500 times, or 4.5% of Aripo EC from 1000 to 2000 times, or 25% of ANT from 1500 to 2000 times, or 2.5% of sharp. Ning EC 2000 times, or 40% of EST EC 1500-2000 times, or 44% of Speed ​​Cay 2000 to 3000 times.

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