Agricultural sectors must provide, clothe, and feed an increasing world population with energy while mitigating the impact on the atmosphere and on other undesirable factors. The land available to agricultural production in most parts of the world is small. Thus, the only way to increase output is to increase the yield from land currently being used. Crop yields without proper plant nutrition are minimal. Responding to the production challenge in an environmentally friendly manner requires a thorough comprehension of plant nutrition by fertilizers as a component of crop production, which encompasses many critical factors, including improved crop varieties, water management, and integrated pest management, etc. This paper is a state of art on the numerous update and feasible technologies of application of various fertilizers for growing plantations in forest nurseries.
The article provides, according to the planting rate and phenological observations, the cultivation of annual saplings of Magnolia grandiflora when growing saplings from seeds. In order to accelerate the cultivation of young seedlings of the magnolia plant, work is underway to apply mineral fertilizers in various ways, and the results are recorded in a field journal. Experiments were carried out on a variation basis and 30 plant samples were obtained for each variation. In addition to the application of experimental fertilizers, additional preparations were used to protect our plants from various external influences: 1 g/1 of succinic acid was prepared from the roots and leaves in 5-7 days to remove leaves from stress. In addition to mineral fertilizers, organic (rotten manure) fertilizers were also used. The growth, development and characteristics of magnolia seeds were studied at the Andijan branch of the Research Institute of Forestry. As well as, growth rates, duration of ontogenetic cycles, moisture and mineral nutrition requirements, disease and pest resistance were also determined.
This article presents the results of a study on the effect of mineral fertilizers on the growth and formation of large-sized saplings of small-leaved linden (Tilia Cordata Mill) and silver birch (Betula Pendula Roth.) in a typical sierozem of the Tashkent region. The main criterion for assessing the effect of fertilizers and the feasibility of their use is the growth of saplings. It has been established that the growth of saplings of small-leaved linden and silver birch is enhanced by the use of mineral fertilizers. At the same time, the growth rate depends on the doses and the ratio of the fertilizers used.
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