Bulletin of Armenian National Agrarian University
Հայաստանի ազգային ագրարային համալսարան
Գլխավոր խմբագիր՝ Հ. Ս. Ծպնեցյան
The forest brown soils of the Artsakh Republic are often distinguished by the less favorable agro-physical and agro-chemical properties, including low fertility. It is possible to reclaim these soils by means of appropriate fertilizers. According to our observations the processed dacite tuff (PDT) is among these fertilizers, which is fabricated out of the potassium-rich dacite tuffs through thermochemical method. According to the experimental data, in case of applying PDT or “MM” bio-fertilizer in N P K fertilization system the soil water absorption capacity has increased by 5.7%- 15.5 %, water permeability by 16.2%-20.6% and the absorption capacity for NH - ion by 14.9%-16.3% as compared to the same properties of N P K (KCI) variant. 90 90 90 90 90 90 In case of applying processed dacite tuff or “MM” bio-fertilizer on its background, the content of mobile nitrogen has increased by 65.4%-96.1% against the control variant and by 38.7%-64.5 % against the N P K (KCI) variant. This difference for the mobile phosphorus has made 126.9%-161.5% and 90.3%-119.3 %, for the potassium- 49.5%-62.8 %. The use of gypsum hasn't influenced the abovementioned indicators. 90 90 90 Due to the aftereffect in the fertilization variants of N P K (PDT) and N P K (PDT)+MM the yield surplus has made 37.4%-43.6 % against the control variant and 17.1%-24.3 % against the N P K (KCI) variant. The use of gypsum hasn't provided any yield surplus.
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Jun 21, 2024
May 4, 2023
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https://arar.sci.am/publication/388378
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