Dry farming scallion cultivation method

Abstract

The invention discloses a method for cultivating a green Chinese onion by dry farming. The method comprises the following steps: ridges are made with the spacing between the adjacent ridges controlled at 60cm plus or minus 2cm, the height of the ridges controlled at 30cm plus or minus 2cm, the width of the ridges controlled at 45cm plus or minus 2cm, and the bottom width of ridge furrows controlled at 8-10cm; after the ridge furrows are flattened by compaction, a groove with 2cm depth and 2cm width is respectively furrowed at the two sides of the ridge furrows; seeds of the onion are evenly sowed in the furrows as prepared in the step 1 in between August and September, the furrows are covered with soil and pressed, and the seeds of the onion are 500g plus or minus 20g per mu; the seeds are fertilized after rainfall and then soil is cast on the seeds to keep moisture; when seedlings grow to 15cm plus or minus 2cm high, the seedlings are established at the seedling spacing of 3-4cm, and seedlings are planted at the places without the seedlings to reach 60,000-66,000 seedlings per mu; a plurality of times of hilling are carried out according to the growth situation of the green Chinese onions; In July to August of the next year, the onions are harvested according to the growth situation at alternating ridges; and the reserved green Chinese onions are hilled for 2-3 times, and harvested in October and November. The method for cultivating the onion by dry farming has the advantages of simple technology, strong operability, high yield and high quality.

Description

technical field [0001] The invention belongs to the technical field of vegetable cultivation, and relates to a cultivation method of dry onion. Background technique [0002] Generally, the method of raising and transplanting seedlings is usually adopted in the cultivation of green onions, usually in the autumn of the previous year or the spring of the current year. Open the ditch, trim the ditch wall, evenly drain the onion seedlings into the ditch according to the plant spacing of 3 to 4 cm, irrigate the soil, and fertilize, irrigate and cultivate the soil according to the growth of the onion seedlings in autumn, and harvest from October to November. 2000 ~ 3000 kg. The disadvantage of this method is: due to the need for ditching and soil piling, the ridge distance cannot be further reduced, so that the green onion cannot fully utilize the land space during the growth period, and the total number of plants per unit area is small, resulting in low green onion yield; In add...

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a dry-farmed scallion cultivation method, which solves the problems in the prior art that seedlings need to be raised and transplanted, and a large amount of labor is needed; and the distance between ridges is relatively large, the total number of plants per mu is small, the problem of relying on irrigation, and the yield per mu is low.

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