Autumn cabbage, referred to by the general population as “home-owned vegetables” in the northern part of the country, is the main vegetable for the winter spring, and the northern part of the country is an off-season in vegetable supply between late september and late october. The season is characterized by small and high prices and a severe undersupply. In response to a number of technical problems in the production of autumn cabbage, the agricultural section dedicated a special visit to the long life of the retired vegetable expert and senior farmer of the jinchong city agricultural technology extension centre. Reporter: hello, there are many large varieties of cabbage in the market and many of the farmers' friends have difficulty in choosing their varieties before planting them. Can you offer some quality varieties for farmers' friends? Zhang longevity (hereinafter referred to as zhang): well, it is true that there is now an extremely large variety of cabbage on the market, with variations in their range of adaptation and variety characteristics. The selection of suitable good varieties is one of the key techniques for successful cabbage breeding. They should be characterized by high temperature resistance, disease resistance, short reproductive periods, strong condensity and good commerciality. It is generally desirable to opt for a range of about 60 days of childbearing, with a single ball mass of 2 kg. The main plant can be selected for such pre-literate cabbage varieties as creas 55, green 5, lugung 55, shandong 19, pre-literated 5 and minor 55. Reporter: ms. Zhang, what should be taken into account in the next stage of the pre-planting process after choosing a good breed? Please explain to us。
Zhang: (1) the method of breeding. The planting of early and early cabbage occurs between mid-july and mid-august at a time when the temperature is high and the rainfall is too high, often affects and inhibits the growth of small seedlings of large cabbage, leading to late production, so that it is suitable to be grown in the form of a leachate seedling that avoids the intrusion of rain on seedlings, slows down the seedlings that are grown, is high in the form of dentage, tends to yield the best price for seedlings at 54 cm x 28 cm, 50 pobeds per day at the size of a cavity, at the level of a lateau, at the level of a latte, at the level of a latte, at the level of a latte, at the level of a latitue, at the level of a laternation, at the level of a laternation, at the level of a laternation, at the level of a latitue, and at the level of a latitue, at the level of a latitual, at the level of a per (2) fertilizing the whole area and planting it. Owing to the short and fast-growing fertility of pre-cooked cabbage in the autumn, the choice should be made for high terrain, easy drainage, fertile soil, organic plots rich in organic matter, combined with deep ploughing, 3000 to 5,000 kg organic fertilizer per acre, ore elements 40 to 80 kg compound fattening, 15 to 25 kg compound fertilizing, then spreading the ground after full mixing, rise to the ground, apply biobactivation 80 to 120 kg per acre, and rise acupuncture, generally at a distance of 50 to 60 cm and 15 to 20 cm high, because early and early cabbage is short and growing at a high rate, so the precipitation takes place, first of all by increasing the thickness of the soil tillage, creating favourable conditions for the growth of the roots, and, secondly, by making it easier to pour water and flood, and also by enabling wind to reduce the harm caused by disease. (3) cultivation in a timely manner, reasonably secret. When large cabbage sprouts grow between five and six leaf leaves, it should be grown in the same depths as the tops of the ground, so that the soil does not cover the heart too deep and affect the seedlings. It should grow at a distance of 40 cm or so in the early autumns, the density of cultivation should not be too high, and the density of planting should be determined on the basis of variety and strength. Journalists: what is the most important next step for farmers' friends after all the pre-planting jobs? Zhang: the most important thing after the birth of the child is to manage the field, which means that it must follow。
(1) watering in due course, scientific fertilization. It's about time to fertilize, when early and autumn cabbage is applied differently from fall cabbage, when fertilized, when fertilized, how many times it should be applied, usually three times fertilized, when urea growth is rapidly increasing, usually 10 kg of urea per 667 square metres, urea per 667 square metres, urea per square square square metres along both sides of the arctic, ditch soil percheon on both sides of the arctic, and fertilize in a timely manner, with two rounds of high nitrogen, high potassium, low phosphorus fertilizers being applied twice, 25 kg of compound fertilizer per 667 square metres, allowing fertilizer to be applied. On both sides of the platinum, proper earth-breeding and timely watering, the frequency of water-watering may be appropriate depending on the rainfall, ensuring that the face is wet and dry, watering in combination with fertilizer, adequate supplementation of boron and calcium, calcium deficiency, which can lead to “dry heart” phenomena, affecting the commodity nature and quality, and draining ditches after heavy rains in order to prevent diseases such as soft decay. (2) pest control. Insect control is primarily preventive, supported by a combination of appropriate medications, alternative medicines, safe medicines, scientific mixing, increased drug effectiveness due to location, time, illness, early and autumn cabbage's main diseases are viral diseases, frosty diseases, morbid diseases, pests with aphids and larvae, the main symptoms of which are foliage, slow growth, brown and dead spots or stripes in the veins, the main symptoms of frosted diseases are white molds on the backs, falciding colours from light yellow to light brown colours, heavy flavouring of leaves, and the main measure to prevent viral diseases is the selection of disease-resistant varieties, the main pests of early and autumn cabbages are cabbage and moths, the main symptoms of which endanger the bellies, which can be eaten in a transparent manner. In general, spraying begins after slow seeding, with the early treatment of aphids cutting off the source of viral infection, thereby reducing the incidence of viral disease, with the initial onset of the disease, with 20 per cent hydrochloric acid, with copper humid powder 500 to 600 times more liquid spray, or with 15 per cent aphrodisiac suspension 1,000 times more liquid spray, with 72 per cent of the start-up period with agrocinoxin humid powder 3,000 times, or with 72 per cent of the agrosulphate thiochlor 3000 to 4,000 times liquid spray spray, with 25 per cent bromocyprimethrin cream 2000 to 3,000 times liquid, or 10 per cent of the pyrethrin powder 1000 to 2,000 times liquid spray spray, and with 5 per cent of the plume worm 3-year-old pre-child with 5 per cent fluorophenochlorine powder 1,000 to 2,000 times liquid, or 18 per cent of the avellactin milk 3000 times liquid spray. (3) timely collection. In order to be more efficient and avoid decomposition, a compact plant and morning market should be selected。
Audit expert: senior agronomist at jinchong city agricultural technology extension centre
