Creating environmental conditions suitable for the growth of vegetables in greenhouses is a prerequisite for ensuring the robust growth of vegetables. However, in continuous rainy days and cool weather, although the environment within the shed has been artificially improved, the growth of vegetables is still seriously affected by the external climate. To reduce losses as much as possible and ensure the healthy growth of vegetables, the first thing is to cultivate. Strong trees enhance the plant's own resistance.
At present, it is a time for the winter and spring vegetables to change their crops. In the most recent period, there is continuous rain and cool weather. In order to prevent the emergence of seedlings after planting, it is recommended that the vegetable farmers cultivate strong trees.
To cultivate strong trees, you need to start from the following three steps:
The first step: nurture strong seedlings. Spring wolfberry vegetable nursery period in the cold season in winter, nursery time to do a good job of "three defenses", namely: a low temperature hazards; two prevent apprentices; three smoked seedlings. The nursery can be insulated by installing a small shed inside the shed. However, timely attention should be paid to the temperature change in the small arch shed. When the night temperature is higher than 20°C, it is necessary to cool the air to prevent leggy seedlings and tall seedlings from appearing. Because of the way of raising a small shed in the shed, fertilizers such as fertilizers or smokers often emit harmful gases, such as ammonia, in the shed. At this time, attention should be paid to closing the small shed to prevent smoked seedlings. Seedlings 3-4 leaf a heart, robust stems, developed roots, plant height 13-15 cm, seedling age 25-28 days that is strong seedlings, can be planted.
The second step: planting on sunny days. To avoid colonization in rainy weather, because the rainy weather, the seedlings are prone to the phenomenon of "false living" above the ground, that is to say, in the rainy weather, the air humidity inside the shed is large, can basically provide enough water for the growth of stems and leaves, Not conducive to rooting seedlings, so the colonization should be sunny morning planting.
The third step: control water seedlings. After the seedlings have been planted and planted with water, planting water should be controlled to prevent the seedlings from becoming leggy. After 4-5 days, the roots begin to grow. At this time, the seedlings can be watered as appropriate according to the dry and wet conditions of the soil and the growth of the seedlings. This logistics delineates the control of water until the vegetables are ready for fruiting after the flowering period. If there are signs of leggy here, control should be sprayed with modifiers such as mesonocine or chlormequat.
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