What is the normative basis for rice transplanting?

Rice transplanting is a special operation in rice field production, with high standardization. Main requirements: the ground is as flat as a mirror, the ridge is as straight as a line, the canal system is matched, the hole rows are consistent, the density is reasonable, and the degree of seedling protection is high. When working in water layer, there must be strong seedlings, moderate mud rot and loose paste, which is beneficial to seedling transplanting and seedling fixing.

Loose ventilation is good for hair roots. These five conditions are the basis to ensure the quality of transplanting, and the quality of transplanting was the key at that time: according to the requirements of variety, yield and fertilization level, determine the reasonable planting density, transplanting form and number of seedlings per hole;

Rooting, transportation and transplanting of seedlings in the ground should not damage the roots, and shallow transplanting should not drift the seedlings. The transplanting depth should be controlled between 2 and 2-3 cm, and deep transplanting should be resolutely overcome to prevent seedlings from nesting. After transplanting, it is necessary to replenish seedlings in time, which is the guarantee to adhere to the quality of transplanting. It is required to complete this operation within 3 days after transplanting, and pay attention to sealing the nest after replanting to prevent the seedlings from drifting again.

Extended data:

The working process of rice transplanter is different due to different structures, but the basic flow is basically the same. The principle of "group by group, group by group, group by group, group by group, group by group, group by group"

The transplanting parts of all kinds of transplanters are basically the same: the manual transplanter consists of seedling box, transplanting mechanism, frame and floating body (boat board), and the self-propelled motorized transplanter is also equipped with power transmission, walking device, seedling feeding mechanism and other parts.

Baidu encyclopedia-rice transplanter