Planting, plowing and ridging method for green manure on tobacco stubble

Abstract

The invention discloses a planting, plowing and ridging method for a green manure on a tobacco stubble. The planting, plowing and ridging method is realized by the following steps of firstly, after flue-cured tobacco or maizes are harvested, cutting off flue-cured tobacco straws or maize straws from July to October of the first year, avoiding the plowing of soil, and directly performing zero tillage sowing on green manure in furrows; secondly, sowing green manure seeds accounting for two-thirds of the seed consumption of the whole filed in the furrows, covering the furrows with fine soil, wherein the sowing width of the green manure is not lower than 50cm; thirdly, in the second year, when the green manure is positioned at a squaring stage to an initial blossoming stage, selecting fine days, and spreading base fertilizer on the green manure according to the kinds and the quantity of the base fertilizer required by the flue-cured tobacco; fourthly, secondly, respectively plowing two ridges towards two sides of an original ridge body on the original ridge body, burying the green manure into soil of the ridges, and then breaking into fine soil and ridging; fifthly, finally, after the green manure is buried into the soil for 10 to 15 days, transplanting the flue-cured tobacco on the ridges. According to the planting, plowing and ridging method disclosed by the invention, sowing working procedures of the green manure are simplified, the emergence rate of the green manure can be improved, the production input is reduced, and higher yield and benefits are obtained.

Description

technical field [0001] The invention relates to the field of agricultural technology, in particular to a green manure planting of tobacco stubble and a plowing and ridging method thereof. Background technique [0002] Flue-cured tobacco is one of the important economic crops in my country. Due to the long-term continuous cropping and continuous application of chemical fertilizers, the development mode of emphasizing the use of fertilizers and ignoring cultivation has seriously damaged the soil environment of tobacco fields, and the soil quality has declined, which has affected the effective and sustainable use of land resources, resulting in the reduction of tobacco leaf quality and industrial availability and the decline of tobacco planting benefits. become an important factor limiting the production of flue-cured tobacco. Making full use of winter light and heat resources and planting green manure in idle stubble to turn over the soil can not only increase the ground cove...

AI Technical Summary

Problems solved by technology

This method has the following disadvantages: First, plowing the soil requires labor and agricultural machinery, which increases production costs; second, in dry areas in winter, the plowed soil is more prone to drought, which is not conducive to the germination and emergence of green manure seeds, resulting in a low green manure emergence rate; After the green manure is mechanically overturned, a part of the green manure (such as planting ryegrass) is not buried and continues to grow, affecting the growth of flue-cured tobacco seedlings; the fourth is that the buried green manure decomposes and competes with flue-cured tobacco for nutrients, contacting the roots of flue-cured tobacco seedlings is not conducive to the growth of flue-cured tobacco roots. Fifth, when the output of green manure is high, part of the green manure must be removed (because the amount of green manure turned over in the flue-cured tobacco field is generally 1500-2000kg / hm of fresh grass 2 ), increasing the production cost

These shortcomings affect the planting of tobacco stubble green manure, and also affect the sustainable development of flue-cured tobacco