Uman NUH | today: 04/14/2024

Removal of nutrients by lentils depending on fertilization in the right-bank forest-steppe

Author(s) Hospodarenko G.M., Doctor of Agricultural Sciences, Professor, Uman National University of Horticulture, Ukraine
Мусієнко Л. А., , ,
Category The Agronomy
year 2022 issue Issue number 101. Part 1
pages 122-128 index UDK [631.81 : 631.871]:633.35(477.4)
DOI 10.32782/2415-8240-2022-101-1-122-128 (Link)
Abstract The relevance of research of this issue lies in the fact that different crops, depending on the soil and climatic conditions, as well as agrotechnology of cultivation, manifest and carry out different nutrients for the formation of a unit of crop of the main and corresponding amount of non-commodity products. It was established that the components of the lentil fertilizer system influenced the economic removal of nutrients. The smallest amount of nitrogen, phosphorus and potassium was carried out by lentils in the determinant version without the use of fertilizers and inoculation – 68, 23 and 40 kg/ha, respectively. In the same variant with inoculation, these indicators increased by 6, 3 and 5 kg/ha, respectively. Depending on the fertilization system, the economic excretion of nitrogen was 75–108 kg/ha without inoculation and 83-120 kg/ha with inoculation, phosphorus and potassium 27–37 and 29–40 kg/ha and 44–63 and 48–68 kg/ha, respectively. To determine the monetary efficiency of the use of nitrogen -fixing microorganisms, calculations were made on the basis of a possible increase in fixed atmospheric nitrogen and the cost of 1 kg of mineral nitrogen. It is established that the monetary equivalent of saved due to nitrogen inoculation is 612–1530 UAH/ha, depending on the fertilizer option. It was the smallest in the control version without fertilizers – 612 UAH/ha, and the largest – 1530 UAH/ha for application of nitrogen (N30) and sulfur (S34) mineral fertilizers on a phosphorus-potassium background P30K40 and the use of ammonium molybate. Therefore, the dependence of the economic removal of nutrients on fertilization and inoculation is established. The largest proportion of economic removal is nitrogen – 68–108/74–120 kg/ha without inoculation respectively, then potassium – 40–63/45–72 and phosphorus – 23–37/26–40 kg/ha, respectively with and without inoculation. Along with nitrogen, inoculation promotes the absorption of phosphorus and potassium plants. The indicator of feeding elements per 1 ton of lentils and the corresponding amount of straw on the podzolic black soil of the right-bank forest-steppe is: 47 kg of nitrogen, 16 kg of P2O5 and 28 kg of K2O.
Key words lentils, mineral fertilizers, doses and combinations of fertilizers, inoculation, podzolic black soil
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