Garlic is a kind of health care vegetable product which is favored by consumers. Its market demand has been increasing continuously in recent years. As a result, many farmers choose to grow garlic. In the process of growing garlic, fertilizer plays a very important role in ensuring the high yield of garlic. Then, when will the garlic be fertilized? What are the fertilization techniques for garlic? The following small series will lead you to understand together:
When will the garlic be fertilized?
Garlic growth period is long, every production of 100 kilograms of garlic, it is necessary to absorb 1.42 kg of nitrogen, phosphorus 0.44 kilograms, potassium 0.99 kilograms. And in different stages of growth and development, the amount and proportion of nitrogen, phosphorus and potassium nutrients are also greatly different.
1.: in the winter period nitrogen uptake is low, then will gradually rise to the bulbification stage and reached the peak in the differentiation period; before the nitrogen absorption amount of the total uptake of 30%, therefore, to meet the needs of nitrogen is to increase the yield and grade garlic the key measures in the middle and late growth stage.
2. phosphorus: the absorption of phosphorus is little before winter, and less in winter. At the start of the phosphorus absorption increased from reviving stage, differentiation of garlic in Bulting stage by absorption of phosphorus in the largest amount of garlic, because vegetative growth and reproductive growth and at the same time, absorption of phosphorus and more urgent, is the strength of vegetative garlic on phosphorus absorption, absorption accounted for 52.1% of total phosphorus.
3. K: garlic on potassium absorption with two peaks before winter potassium absorption in seedling stage accounted for the total amount of potassium 10.5%, overwintering period less, into the green period of potassium absorption appeared the first peak, its absorption accounted for 26.7% of the total, is nearly 4 times the seedling stage; bulbification stage is the second K absorption peak, the whole growth period accounted for about 45% of the total K.
Garlic dressing has several times, respectively: urging fertilizer in general after the emergence of a month or so, acres of urea 10 kg; fat, also known as La fat, general in the winter before the application, mainly for organic fertilizer; green manure, also called spring fertilizer, growth, root elongation in garlic leaves when applying. Acres of urea 5-10 kg, if the application has urged miaofei and fat, green fertilizer can not rush; bolting fertilizer in garlic began to smoke when applying, acres of urea 15 kg; pressing head fat, generally a month in the reminder after bolting fertilizer, garlic bud dew, Mu fertilizer 25-30 kg. Fertilizer application should pay attention to deep application of soil, in order to reduce nutrient losses and improve fertilizer efficiency.
Garlic fertilization technology
According to the need of garlic fertilizer and fertilizer absorption characteristics in fertilization of garlic, should adhere to the organic fertilizer, fertilizer supplement; basal fertilizer, topdressing nitrogen fertilizer; coarse fine chemical fertilizer, fertilization principle skillfully, to maximize the utilization of garlic in the growth process of nutrient needs.
1, base. The garlic shallow roots, root hairs, fertilizer absorption ability. Therefore, higher requirements on the quality of fertilizer with organic manure, general maturity as well, application of compound fertilizer per mu 5000-6000 kg and 50-100 kg. Usually in the basal fertilizer, some calcium magnesium and sulfur fertilizer.
2, topdressing: garlic is based on crop fertilizer, enough base fertilizer on the general 4 dressing, respectively:
(1) miaofei. The purpose of this study is to promote the growth of roots and seedlings after germination, and to improve the overwintering performance of garlic. In general, about 15 days after emergence of high nitrogen compound fertilizer per acre can be 5 to 8 kilograms, the field of high fertility, fertilizer is enough, can not rush miaofei.
(2) green manure. Usually in spring, the temperature picks up and is applied around the spring equinox, and the amount of grain used should be 8~10 kg of high nitrogen compound fertilizer.
(3) bolting with fertilizer. Usually, garlic should be completed in the dew tassel and flower bud differentiation at. The vigorous growth period, and the maximum efficiency of nitrogen, then push moss fat is a critical part of 25-30 kg per mu fertilizer, compound fertilizer.
(4) head fertilizer. 25 ~ 30 days to bolting fertilizer, mainly nitrogen, phosphorus and potassium fertilizers combined with per mu, application of high nitrogen compound fertilizer should be 15-20 kg, garlic and garlic harvest to meet the nutrient needs of enlargement.
3, the application method of garlic dressing, usually by banding, or buried application with water application. After application of organic fertilizer, often direct ditching, ditching fertilizer is usually used to implement application; application after application of soil. After topdressing, weeding and weeding should be strengthened to maintain soil porosity and soil moisture, reduce nutrient losses, and accelerate the absorption and utilization of nutrients by roots.
