The effect of mineral fertilizers on the background of manure on the yield of garlic (allium sativum l.) in the western zone of Azerbaijan

The article presents the results of studies of the effect of mineral fertilizers on the background of manure on the yield of garlic culture. During the research to determine the rate of nitrogen fertilizer in crop production (especially for vegetable, melon crops and potato plantings) it is necessary to take into account the amount of mineral nitrogen that is formed in the soil. Therefore, the more fertile the soil, the more nitrogen it contains. The amount of nitrates accumulated in the product is closely related to the speed of the process occurring in the soil layers as the mineralization of organic residues in the soil and an increase in the amount of nitrogen easily absorbed by plants, along with the dose of fertilizer applied to the soil. In this case, the main problem of using agrochemicals is their direct correct application of both organic and mineral fertilizers and optimization of the balance. In other words, the main goal is to achieve an environmentally friendly, safe, high yield of vegetable, melon and potato crops, preventing contamination of the product with nitrites and nitrites, the use of manure and a dose of mineral fertilizers is not only one of the most important elements for increasing the yield of winter garlic, as well as improving the mineral composition of the soil. Therefore, for the first time in the zone, the correct determination against the background of manure and doses of mineral fertilizers is one of the urgent tasks. In this regard, we conducted studies to determine against the background of manure and doses of mineral fertilizers and their effect on the yield of garlic culture. The highest yield was obtained in the Background + N₆₀P₉₀K₆₀ variant, respectively, 175.3 c/ha, an increase of 74.0 c/ha or 74.0%. Based on our field studies, we can conclude that in order to obtain a high and high-quality harvest of winter garlic and restore soil fertility on chestnut irrigated soils of the Ganja-Kazakh zone of Azerbaijan, it is recommended that farmers use 20 tons/ha of manure and mineral fertilizers in the norm of N₆₀P₉₀K₆₀ kg/ha per year.

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