High-yield cultivation method of Brassica oleracea

Abstract

The invention discloses a high-yield cultivation method of Brassica oleracea, comprising the steps of raising seedlings with trays, to be specific, using 35-50 g of seeds per mu to raise seedlings in April to May; managing after seeding, to be specific, removing mulch in time at the moment of sprouts emerging from soil, topdressing with 0.3% urea when each seedling grows 3 true leaves, and performing field planting when the seedlings are about 30 days old; performing field planting, to be specific, transplanting to a large field for field planting when each seedling grows 6-7 true leaves, preparing the field and applying fertilizer before field planting, and cultivating in plum-blossom high-density mode; managing the field, to be specific, applying 15-20 kg of urea per mu of holes during field planting based on sufficient farmyard manure applied; harvesting. By using the high-yield cultivation method of Brassica oleracea, the yield per mu can be increased to 6400 kg per mu, basis is laid for the stable production of Brassica oleracea, and the produced variety of Brassica oleracea is significantly superior to other varieties in terms of disease resistance, cold resistance, physiological form and yield, and is applicable to planting in various regions and convenient to popularize.

Description

technical field [0001] The invention belongs to the technical field of vegetable cultivation, and in particular relates to a high-yield cultivation method of cabbage. Background technique [0002] Cabbage, also known as head cabbage, commonly known as cabbage, belongs to the cruciferous family. It is native to the northern shore of the Mediterranean Sea and was introduced to China in the 16th century. It has strong adaptability, easy cultivation, transportation resistance, high application value, and wide edible range. It is an indispensable vegetable delicacy on the human table and has become an important cultivated vegetable species in the world. [0003] The planting area in the whole world is 24.6 million mu, and the area of ​​head cabbage in my country has reached 12 million mu, accounting for 48.8% of the planting area in the world. Now it is widely cultivated in various parts of our country, and it is one of the main vegetables in spring, summer and autumn in Northea...

AI Technical Summary

Problems solved by technology

However, there are the following problems: the mature flowering season and other productions are in the same period as the rainy season and smog. Continuous rain is not conducive to plant flowering and pollen transmission and pollination. In addition, diseases and insect pests will survive the winter and occur in large numbers in early spring, which cannot ensure the robustness of the plants. , especially the development of side branches, causing serious difficulties for breeding

The cultivation method provides sufficient nutrition for the growth of cabbage through the reasonable use of base fertilizer and top dressing, which optimizes the growth environment of cabbage, and with the use of effective insecticides, it overcomes the problem of reduced yield of cabbage that is susceptible to disease , but there is no relevant data to prove this cultivation method, yield, disease resistance and other aspects need to be improved

[0008] The invention patent with the application number 94100993.9 discloses the method of hybrid seed production of cabbage, but after planting, the yield per mu is 3300-3800 kg, which is low and difficult to meet the market demand

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