|
2018, N 4 (34) |
|
AGROCHEMISTRY
|
|
Titova V., Belousova E., Spiridonov A. |
|
|
Application of mineral fertilizers on line oil in the conditions of light-gray forest soils of the Nizhny Novgorod region |
|
|
Results have been obtained on the effect of different doses of mineral fertilizers on the yield and on the quality indicators of flax oilseed variety « Nebesnyy». Studies have shown that the yield of flax seeds increased due to the use of mineral fertilizers on average by 26.1%. The most effective was the dose of nitrogen 45 kg/ha, phosphorus and potassium - 90 kg/ha, the maximum yield increase was 4 c/ha. When making a complete mineral fertilizer, changes in the parameters of the structure of the crop of oil flax are clearly seen. On the fertilized variants, more powerful plants with productive stem are formed. The amount of fruits flax on the plant increased by 32.2% when using fertilizers. The most intensive process of fruit formation is on the variant with nitrogen injection of 45 kg/ha, phosphorus and potassium - 90 kg/ha (their number increased by 21.9% relative to the variant with dose N45(PK)60). The use of fertilizers contributed to the formation of seeds. However, in terms of their effect on the value of this indicator, the doses considered were equivalent. Under the action of mineral fertilizers, no significant changes were found in terms of such an indicator as the weight of seeds per plant. At the same time, a significant increase in the weight of 1000 seeds relative to the control was established only on the variant N45(PK)90 (11.8%). Intensively the process of fat accumulation is noted only on the variant with the introduction of nitrogen 45 kg / ha, phosphorus and potassium - 90 kg / ha. In this variant, the oil content of seeds increased by 4% relative to the control variant, and the yield of oil increased by 39.3%. In the conditions of light gray forest soils of the Nizhny Novgorod region, the optimum ratio of mineral nutrients for oil flax is maintained on the variant with a dose of full mineral fertilizer N45(PK)90.
Keywords: LINEN OILSEED, MINERAL FERTILIZERS, LIGHT-GRAY FOREST SOIL, OILITY, CROP STRUCTURE, 1000 SEEDS WEIGHT, PLANT HEIGHT |