Before sowing, a new high-fat film should be sprayed to protect the seedlings from water evaporation, which is beneficial to emergence and seedlings. Select cloudy day sowing. After sowing, pay attention to ensure that the soil is moist, need a little water to be poured, and watering over the assembly will make the soil compact and the seedlings will not come out. In the autumn sowing, it is also necessary to cover the shade net. If the temperature is too high, the roof must be covered.

Seedling protection. When the small seedlings are discharged, the shades on the surface shall be removed one by one in a timely manner. The seedlings shall not be too wet after spraying, and the new high-fat film shall be timely sprayed to prevent the bacteria from invading, improve the ability to resist natural disasters, and increase the intensity of photosynthesis. Protection seedlings thrive. When the young seedling grows to 1 leaf and 1 heart, we need to pull the grass once. When the young seedlings are 2-3 leaves, we should keep the surface wet and wet to see the seedlings and cultivate the strong seedlings so that the seedlings grow as much as possible. In the event of heavy rain, the water in the maggots must be promptly removed to prevent the emergence of rotting roots or rotten seedlings. Celery hi wet, the entire seedling stage should be poured with a small water, watering time, high temperature season is generally carried out in the evening, to see the principle of wet soil see dry, to maintain moist soil conditions.

Timely colonization can be based on the local climate characteristics and the growth of seedlings, choose the time of colonization. When plant height 15-20 centimeters, there are 4-6 true leaves, stem 0.5 centimeters thick, when the soil temperature can be suitable for planting. The seedbed should be watered the day before planting. When the seedlings are raised, the roots should be dug up, shake off the soil, and eliminate sick and weak seedlings. When planting seedlings, the size of seedlings should be graded, and the same size seedlings should be planted together. The depth of seedlings is the standard for the depth of seedlings in seedlings.

After the planting in the field, timely spraying of new high-fat membranes can effectively prevent the ground water from evaporating, the seedling water from transpiration, isolation of pests and diseases, shortening of the seedling-reducing period, rapid adaptation to new environments, and healthy growth. After the slow seedlings are completed, watering should be controlled, and cultivating tillage, weeding, and seedlings should be carried out to promote root growth and lay the foundation for the later growth of the plants. After seedlings, the root system of the plant is developed and the absorption capacity is enhanced. The leaves turn from open growth to erect growth, generally known as the Liberation Period. At this time, the outer leaves no longer increase, the heart leaves begin to develop, and the plants begin to enter into the hypertrophy and fullness period. This stage should pay special attention to watering to ensure the water supply, and spraying the strong stems of vegetables at the same time can make the stem thick and the leaves thick, The leaves are fresh, the plants are lush and the natural taste is strong. At the same time, it can increase the ability to resist disasters, reduce the amount of pesticides and fertilizers, and reduce residual poisons.

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