Objective aspect
Simultaneously create two suitable greenhouses
To adjust the temperature and humidity, the air vents should be opened and closed in time according to the changes in the outside climate, ventilation and ventilation. At night, it is decided whether to put the insulation quilt according to the temperature. The suitable temperature is 23 ℃ ～ 30 ℃ on sunny days, 3 ℃ ～ 5 ℃ on cloudy days, and 15 ℃ ～ 20 ℃ on nights. According to different crops to adjust different indoor air humidity, tomato, eggplant and other crops should be maintained at 40% to 50%, sweet pepper and cucumber and other melon crops should be maintained at 60% to 80%, should increase the light time.
Watering and topdressing according to weather, plant growth and soil conditions. Topdressing should promote the integrated technology of water and fertilization. It is appropriate to use drip irrigation to apply instant nutrients such as "Christmas tree" with comprehensive nutrition and reasonable ratio. When it grows to a size of 3 cm, apply a high-potassium formula "Christmas tree" instant fertilizer with a nitrogen, phosphorus and potassium content of 16: 8: 34, 5 to 8 kg per mu; it can also be applied with water. Acid organic liquid fertilizer. It is necessary to water diligently, every time the amount of water per acre is 8 to 10 square meters to avoid flooding. Hanging 20 bags of carbon dioxide gas fertilizer per acre to increase the indoor carbon dioxide concentration, play a role in increasing production and improving quality.
Subjective aspect
Do a good job of managing the production of greenhouse vegetables in stages to increase production and income
Arrange the plants in time to hang vines, vines, drop seedlings, pruning and twig, and remove the lower yellow leaves and old leaves. When the first ear of the tomato grows to the green maturity period (when it starts to turn white and no longer grows), the lower leaves are removed. The dark green leaves of the lower part of the cucumber should be removed in time to prevent the infection of downy mildew due to poor ventilation. Each cucumber plant should retain about 16 functional leaves.
During the flowering period, cucumber, tomato and other creeping crops should be hung and circulated to fix the plant in time. It is best to use silver-gray plastic rope to hang the vines, which has the effect of avoiding aphids. Tomatoes should not be prematurely branched, and the branches under the first ear of flowers should be cleared when they grow to 8 cm, so as not to affect the growth of the root system; the fruit-type cucumber will thin the young melons and flower buds below the fifth leaf as early as possible, from the sixth The leaves start to form melons. Tomatoes and eggplants are preferred to use drone pollination or oscillating pollinators to assist pollination to promote fruit setting, and it is also possible to spray flowers or dip flowers in a safe way, such as "Fengshengji No. 2" or "Guo Gui Ning" to promote fruit setting. Concentration and operation timing to avoid the phenomenon of too few abnormal fruit and fruit set and irregular fruit growth.
Swell the fruit and wait for the base fruit to sit and then start watering and then fertilize. Tomatoes wait for the first ear to grow to the size of a walnut (about 3 cm in diameter), and the eggplant fruit is suitable for a diameter of 3 to 4 cm. When watering, choose sunny morning. It is appropriate to use drip irrigation to apply instant nutrients such as "Christmas Tree" with comprehensive nutrition and reasonable ratio. According to the fertilizer requirement of different crops, choose fertilizers with different ratios. It is a high-potassium formula "Christmas tree" instant fertilizer of 16: 8: 34, 5-8 kg per mu; it can also be used with water to apply a comprehensive organic liquid fertilizer of alginic acid or humic acid. Hang 20 bags of carbon dioxide gas fertilizer per mu to increase indoor carbon dioxide concentration.
Harvest fruits in time and harvest them in time after harvest. It is better to harvest them early in the morning to improve the nutritional content, taste, and flavor of the fruit; cut cucumbers, sweet peppers, and eggplants with scissors to prevent them from being cut off by hand Plants and infections. Handle gently when picking to avoid damage to the fruit and reduce the quality of the goods. If bamboo baskets and wattle baskets are used, they should be covered with soft paper or agricultural film to prevent fruit sticking.
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