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^: 3036 2012 1
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^: , 2012; N 1. - . 12-14
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^: . : (); N140P95K175 ( 25 / ); - 25 50 /; - 25 50 / ; ( 25 / ); 5 / + N115 ( 25 / ), . (4,12 /) 0,36-0,74 /. 4,83 5,17 /. 17-23 / , 21-25 /. 3 70,27 /, 6,69-22,66 /, - 13,55-33,85 /. 0,3-0,64 /, 10,4-22,2%. 3,46-3,52 /, 2,88 / . 0,5-0,95 /. .

aref2 To develop the practical proposals for effective utilization of different organic fertilizers in landscape agriculture of the Volga region the efficiency of their aftereffect and presowing seed treatment by rhizoagrin for spring wheat were studied. The experiment plan included the variants without fertilizers (control), with N140P95K175 (the equivalent to 25 t/ha of manure), manure at doses 25 and 50 t/ha, sludge (the equivalent to 25 and 50 t/ha of manure in nitrogen), green manure (the equivalent to 25 t/ha of manure in nitrogen), straw 5 t/ha + N115 (the equivalent to 25 t/ha of manure in nitrogen), against the background of which the effectiveness of seed presowing treatment with rhizoagrin was studied. The amount of sideline products of spring wheat in the second year after organic matter application increases relative to control (4.12 t/ha) by 0.36-0.74 t/ha. If you are using rhizoagrin against this background, it varies from 4.83 to 5.17 t/ha. Together with stubble-root remains of spring wheat 17-23 kg/ha of nitrogen inflow the soil, with rhizoagrin application this index increases up to 21-25 kg/ha. Carry-over of nitrogen by spring wheat grain on the average over three years was 70.27 kg/ha at the control, it increased by 6.69-22.66 kg/ha in the variants for fertilizer aftereffect and by 13.55-33.85 kg/ha in the variants with rhizoagrin application. Yield increase due to fertilizer aftereffect was 0.3-0.64 t/ha, or 10.4-22.2%. Higher doses of manure and sludge ensured yield formation on the level of 3.46-3.52 t/ha against 2.88 t/ha in control. In the variants with presowing seed treatment with rhizoagrin spring grain yield increased by 0.5-0.95 t/ha against the background of organic fertilizer aftereffect. Aftereffects of sludge and manure at high doses taken with presowing treatment of seeds by rhizoagrin promote the highest influx of nutrients in the soil with stubble-root remains and the high productivity of spring wheat.

^TRN: 1257449
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