After transplanting the seedlings, due to root injury, water absorption capacity decreased, the aboveground growth stopped, and the leaf color turned yellow. Only after 3-4 days after transplanting did new roots begin and the root absorption capacity gradually recovered, and the leaves changed from yellow to green. The new leaves began to grow, this period is called the seedling period. The shorter the seedling period, the better. In addition to the seedling's own situation and the method of transplanting, the duration of the seedling growth period has a lot to do with the management of the seedling period. In order to shorten the period of seedling sowing, the technical measures after transplanting seedlings are as follows:
1, check the seedlings
After the completion of the inspection, the whole field was inspected and it was found that the floats and dumps were handled in time.
2, irrigation
Fill deep water immediately after plugging in. The water depth is half of the seedling height. The purpose is to reduce the transpiration of the leaf and prevent the water imbalance of the seedlings. After 2-3 days, maintain a shallow water layer of 2-3cm in the water layer to increase the ground temperature and promote the early growth of new roots and new leaves. In paddy fields irrigated by well water, the water temperature may be low, and irrigation may be performed by increasing the water temperature by extending the waterway, diligently changing water outlets, and replenishing water.
3, top dressing
About one week after transplanting, a small amount of chemical fertilizer can be topdressed, and 3-4 kg of urea can be recovered by Mu to promote the growth of new leaves. Keep 2-3cm of water when dressing. Before the rice transplanter has applied basic fertilizer this period can not be applied.
4, weeding
5 to 7 days after transplanting, 50% of herbicide-dairy emulsifiable concentrate 500 grams is mixed with sand appetite, or 96% of Radix Cinnamon EC is mixed with 150 grams of salt and applied in front of the second leaves of Pteris vittata. In addition, weeding can also be combined with cultivators.
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