How to know the situation of rice seedlings after transplanting rice seedlings

How to know the situation of rice seedlings after rice transplanting? Please introduce the situation of rice seedlings from the following points: first, leaf diagnosis. The green of rice leaves is dark, which shows that the nutrition is rich, the nitrogen content is high, the leaf color is uniform, and the leaves can be straight is the performance of healthy seedlings. Otherwise, it will be fertilized to make the seedlings strong. Second, root diagnosis. The rice root is a strong white seedling. If carefully observed, the rice root is white at the apex, yellowish brown in the middle, and dark brown at the root base. Third, the leaf tip spits water. The leaf tip can spit water automatically in the morning, indicating the strong ability to absorb nutrients and the performance of healthy seedlings. Fourth, the leaves are not soft. After transplanting rice seedlings, it takes only 5 days for rice seedlings to slow down and adapt to the growth of the field. Fifth, late emergence of seedlings. After transplanting seedlings grow slowly and their ontogeny is not normal. The reason is that the soil is hard and the soil preparation is not fine. The remedy is to loosen the soil, strengthen permeability, and irrigate a small amount of water. 6. cold and stiff seedlings. Cold and stiff seedlings are caused by low temperature, with small leaves and slow growth. Adopt thin water shallow irrigation, adjust the temperature with water to increase the ground temperature, and combine with light drying of the field. Seventh, lack of water seedlings. Water-deficient seedlings wilt at noon and can still recover the next day. If there is a serious water shortage, the wilted leaves are dry and the leaves obviously curl can not be restored, so that the seedlings can be alleviated by heat preservation and moisturization, mainly by irrigation in shallow water. 8. Malformed seedlings. Form "bamboo leaf" or "tubular leaf", the leaf is twisted, the leaf becomes shorter and wider, atrophy deformity. Should be accurate use of pesticides, do not overdose, according to the instructions to avoid abnormal vaccines. Click to get massive rice planting technology click to get massive grain planting technology