Method for low stubble shallow rotary tillage rice seedling throwing

Abstract

The present invention relates to cultivation process during rice seedling transplanting stage in wheat-rice crop rotation field. The cultivation process includes the following steps: low stubble cutting wheat, crushing wheat stubble and spreading crushed wheat stubble in the field; irrigating shallow water layer and shallow rotary tillage; throwing rice seedling; and applying herbicide after the thrown rice seedling stands up.

Description

technical field [0001] The invention relates to a rice cultivation method in a farmland, in particular to a rice cultivation method from wheat harvest to rice seedling transplantation stage in a wheat-rice rotation field. Background technique [0002] The treatment of straw left in the field after wheat harvesting is a thorny problem that has plagued many years. Currently, there are several ways to deal with it: [0003] One is to reverse the stubble and bury the wheat grass deeply into the soil; [0004] The second is interplanting rice in wheat fields; [0005] The third is to harvest wheat ears in the wheat field, leave high stubble and throw seedlings; [0006] The fourth is to harvest low-stubble wheat fields, remove wheat piles, and bury wheat straw in moisture ditch and throw seedlings. [0007] Reversing the method of stubble removal and deep burying of wheat straw into the soil requires high cost of mechanical farming, and a large amount of wheat straw deeply bur...

AI Technical Summary

Problems solved by technology

[0007] Reversing the method of stubble removal and deep burying wheat straw into the soil, the cost of mechanical farming is high, and a large amount of wheat straw is buried deep in the soil and seedlings compete for nitrogen, which affects the early growth of rice seedlings

[0008] There are many technical difficulties in the way of interplanting rice in wheat fields: first, the interplanting of rice seeds in the later stage of wheat growth, and the growth of seedlings in the water, which will affect the grain filling and firmness of wheat; The third is that before the wheat harvest, the seedlings and grasses are symbiotic, and weeding is implemented after the wheat harvest. The weeding is difficult and the effect is poor; the fourth is that the rice sowing period is relatively late, and the rice-wheat symbiosis period is long, and the rice seedlings grow weakly, and the growth is delayed. The growth period of Honda, which in turn limits the application of late-maturing high-yielding varieties and their yield potential

[0009] There are problems such as uneven seedling throwing in the wheat field harvesting of wheat ears and leaving high stubble throwing seedlings, the density is difficult to control, and the high stubble wheat piles are easy to lift the seedlings, resulting in dead seedlings, and the operation is difficult.

[0010] Low-stubble harvesting in wheat fields, removal of wheat piles, and wheat straw buried in moisture ditch and throwing seedlings require removal of wheat piles one by one, which is labor-intensive and time-consuming, and difficult to operate

[0011] In view of the obvious technical defects of the above four methods, it is difficult to popularize and apply them in large-scale production. Therefore, the treatment of large-scale straw after wheat harvest is still set on fire or pushed into rivers and ponds to rot, which not only wastes precious resources, but also seriously pollutes the environment.