Vegetables grow vigorously, manage and harvest to keep up
At present, summer vegetables enter the fruiting period, which is the peak season for harvesting; greenhouse temperature-loving vegetables enter the flowering and fruiting period, and open-field vegetables that mature quickly begin to be harvested, but it is also a period of high incidence of vegetable diseases and insect pests in protected areas. The main agricultural management of vegetable fields cannot be slackened.
Facility vegetable management needs to be meticulous. At this time, tomatoes, cucumbers, eggplants, sweet peppers, radishes, cabbage and other crops grown in the greenhouse are gradually harvested. At this time, the vegetative growth and reproductive growth of crops are carried out at the same time, which is the critical period when water and fertilizer are needed. Strengthening field management is particularly important.
Appropriate growth environment Although the current temperature is relatively high, it changes greatly. It is necessary to adjust the temperature and air humidity suitable for growth and development in time according to external climate changes and different crops. The physiological activities of cucumbers are different from those of tomatoes and eggplants. Four-stage temperature regulation should be adopted. Cold-resistant vegetables such as leaves and roots should be left open to avoid excessive night temperature. Tomatoes, eggplants and other crops are maintained at 40% to 50%; sweet peppers and cucumbers and other melon crops are maintained at 60% to 80%.
Strengthen watering and top dressing. According to weather conditions, plant growth and soil conditions, top dressing should be watered and top dressing. Top dressing should vigorously promote the integration of water and fertilizer technology, and it is advisable to use drip irrigation with instant fertilizer with comprehensive nutrition and reasonable ratio. It is necessary to irrigate frequently with small water, and the amount of water per acre is 8-10 cubic meters each time to avoid flooding with floods. Hang 20 bags of carbon dioxide gas fertilizer per mu to increase the indoor carbon dioxide concentration, improve the efficiency of photosynthesis, and increase production and improve quality.
Grasp plant management and fruit management in time to manage hanging vines, vines, falling seedlings, pruning and branching. Cucumbers and tomatoes adopt the method of continuous falling seedlings to prolong the results of the plants, and timely remove the lower yellow leaves, old leaves and Diseased leaves: When the first ear fruit grows to the green maturity stage, the lower leaves of the tomato should be knocked off, and the dark green leaves of the lower part of the cucumber should be knocked off in time to prevent downy mildew infection due to poor ventilation.
Harvesting the fruits in time after they are mature can not only increase the commodity rate, but also prevent the fruit from falling and affecting the continued fruit of the plant. It is advisable to harvest every morning.
Open-field vegetables should be well planted and managed. When planting cucumbers, tomatoes, eggplants, peppers, pumpkins, etc. in open-fields, adequate organic fertilizer should be used as the base fertilizer, and 4000 kilograms of decomposed and finely divided high-quality organic fertilizer per mu, or 3000 kilograms of biological organic fertilizer, of which 2/ 3 Pave evenly in front of the cultivated land, and apply 1/3 near the roots of the crops when making borders. It is necessary to finely prepare the ground so that the ground is level, the border is level, the ridge is straight, and there is no rubble; the seedlings should be "refined" 5-7 days before planting to enhance the adaptability of the seedlings to the environment after planting; the density should be appropriate when planting. The depth is the same. Tomatoes and eggplants should be planted deeply, and the soil should be 2 to 3 cm above the miaotuo; cucumber, pumpkin, wax gourd and other melons should be planted shallowly, and the soil should be level with the miaotuo. After planting, the fertilizer and water management should keep up. Good management of the vegetable seedling period will reduce the disease during the growth period and lay a solid foundation for high and stable production.
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