At present, most wintering buckwheat vegetables have entered the peak of planting. In previous years, the phenomenon of slow seedling slowing occurred when many vegetables were overwintering. How to solve this problem? In response, the reporter suggested that the following points should be made at the moment:
First of all, first ditch watering, and then planting seal ditch to ensure the temperature. The slow vegetative growth of vegetables is closely related to the pouring of large water after planting. Therefore, in order to make the overwintering wolfberry vegetables grow quickly, the colonization method of first planting and irrigating should not be adopted in order to avoid the lowering of the ground temperature caused by watering after the plants are planted, and it is difficult to slow down the emergence of the seedlings. The method of colonization with ditching and then ditching and ditching should be adopted to ensure the suitable ground temperature for vegetable growth. Generally, the ground temperature of vegetable root development is most suitable at 18-20 °C.
Secondly, the planting was not too deep, and the soil was planted after the planting. Shallow planting of vegetables when planting, especially on clay ground with poor air permeability, generally can raise the root upward about 3-5cm, and then the soil on the root can be thickened. However, only the shallow planting does not increase the cover soil, and it is easy to cause the roots to dry too quickly, and it is unfavorable to slow seedlings. Therefore, it is necessary to cover the ground quickly. For the prevention of disease grafting, shallow grafted seedlings are more necessary. Generally, the grafting site should be 3 cm or more away from the ground, so that the grafting site of the grafted seedlings is far away from the ground to prevent the adventitious roots growing on the scion from penetrating into the ground and affecting the seedlings. .
In addition, ventilation time should be reduced in a timely manner after planting, and heat preservation and moisturizing. Within 7 days of planting vegetables, it should be based on heat preservation and moisturizing, minimize ventilation, and promote vegetable easing as soon as possible. The general seedlings of solanaceous vegetables should be controlled at 28°C-32°C during the daytime and 15°C-18°C at night; the melon vegetables should be controlled at 28°C-35°C during the day and 16°C-18 at night. °C. During this period, the shed requires a certain degree of humidity, and the humidity should generally be kept at about 80%. After 7 days, the vegetables can basically go through the slow seedling period. At this time, the tuyere can be pulled gradually and the temperature of the greenhouse can be reduced by 2°C-3°C.