Control techniques of garlic diseases in growth period
1. Garlic rust should be checked at the disease center in early spring to prevent it in time. Generally, 1000 times solution of 15 per cent wettable powder or 1500 times solution of 15 per cent wettable powder and 1000 times solution of 70 per cent mancozeb wettable powder were used to control garlic rust for the first time in early April, and once more after 10 to 15 days, generally 2 to 3 times depending on the disease.
2. Garlic leaf blight, leaf spot and gray mold were treated with 75% chlorothalonil wettable powder, 64% chlorothalonil wettable powder or 50% copper succinate wettable powder or 50% hydantoin wettable powder 1500 times, depending on the condition in the field at the end of November or late March, and twice in spring.
3. Virus-free garlic has the best control effect on virus diseases. The plants in the field are strong, the leaves are dark, and generally there is no need for medication. Secondly, the initial stage of the disease was sprayed with 1000 times of 1.5 per cent phytotoxin or 5 per cent of bacteriorubicin.
4. The leaves of bacterial soft rot were sprayed with 72% agricultural streptomycin soluble powder 4000 times at the initial stage of the disease, and 77% could kill wettable granules once every 7 days.
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How to manage garlic growing period
Garlic growth management, especially after the green period, is directly related to garlic yield and quality. 1. The management of returning green period In late February, the weather is getting warmer, the seedlings return green, the lower part begins to grow adventitious roots, garlic sprouts and garlic heads begin to differentiate, then ensure the healthy growth of seedlings, accumulate more nutrients for the differentiation of garlic sprouts and garlic heads, which is the key to high quality and high yield of garlic. According to the results of the second soil survey in the whole province, the continuous cropping in garlic producing areas in our province makes the trace elements (Fe, Cu, Mn, Zn, Mg, Mo, B, Co, etc.) and Ca in the soil
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Moisture requirements for the growth of garlic
The garlic leaves are banded, the leaf area is small, the surface is waxy, the root system is small, the soil is shallow, the distribution range is narrow, the root hair is very few, and the ability to absorb water is weak, so the garlic shows strict water requirements and sensitive response, while the leaves show the characteristics of drought resistance. according to the morphological characteristics of garlic, garlic requires adequate water supply from sowing to seedling emergence, but the soil should not be too wet. If the soil tillage quality is poor, the soil moisture is not good, and the exposed soil is too shallow, garlic jumping will occur, but if the soil is watered too much.
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