How to fertilize rice in machine

1 In general, the rice seedlings are small, and the slow seedling period is longer, but the tillers grow rapidly after the seedlings are slowed down. Therefore, based on improving the quality of the land preparation, the rational fertilization and water science management should be closely combined to carry out comprehensive management. For fertilization, nitrogen, phosphorus and potassium fertilizers should be combined with application. It is recommended that the ratio of nitrogen application in different periods is: base fertilizer: manure: booting fertilizer = 4:2:4, and at the same time, in water management, shallow water transplanting should be done. Improve the quality of transplanting; appropriate tillering at the tillering stage to promote rooting and strong seedlings; the booting stage should be dry and wet alternately, and the water layer should be maintained during the filling period to increase the number of kernels and increase the grain weight. Specific fertilization and water management, but also look at the quality, depth and seedlings of transplanting, must not be forced to move.

2 Rice thinning machine deep-fertilization technology is a high-yield cultivation technique that is being tested and promoted in the past eight-five farms in Heilongjiang Province. It is a mechanical transplanting, and the chemical fertilizer is buried in the depth of 4~5 cm. 5~6 cm of paddy soil. Since the fertilizer dissolves slowly in the soil, it can continue to function throughout the growth period of the rice, thereby significantly increasing the fertilizer utilization rate. Compared with conventional machine-planted rice fertilization, the total amount of fertilization can be appropriately reduced and concentrated in the transplanting, but it is still necessary to pay attention to whether or not de-fertilization occurs in the later stage.
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