Влияние систем удобрения на урожайность и качество зеленой массы люпина узколистного на дерново-подзолистых рыхлосупесчаных и песчаных почвах
2008
Soroko, V.I. | Pirogovskaya, G.V. | Rusalovich, A.M. | Sazonenko, O.P. | Isaeva, O.I. | Mashinskij, P.G., National Academy of Sciences. Scientific and Practical Center for Arable Farming (Belarus). Institute for Soil Science and Agrochemistry
There was investigated the influence of fertilizer systems on the yield and quality of herbage of blue lupine (Lupinus angustifolius) on sod-podzolic loamy sand and sand soils in the conditions of the Republic of Belarus. There were analyzed the temperature, depth of rainfall, hydrothermal factor during April-September period in 2006-2007, and April-October period in 1997-1998. Influence of fertilizer system and weather environment on yield of herbage of blue lupine, productiveness and average return of mineral fertilizer on sod-podzolic loamy sand and sand soils was estimated. The influence of fertilizer system on chemical construction of herbage of blue lupine was studied. The influence of fertilizer system on nutritive elements removing and content, yield and productiveness of herbage of blue lupine was analysed. It was revealed that application of mineral and organo-mineral fertilizer system on sod-podzolic loamy sand soils for blue lupine cultivation made it possible to obtain up to 320-340 c/ha of herbage. Application of 60 kg/ha of primary nutrient of potash chloride made it possible to obtain the yield of herbage of 190-210 c/ha and productiveness of 34,4-38,5 c/ha. Quantity of blue lupine herbage in the medium seedlings (the content of crude protein in the herbage was 23,4-26,2%) corresponded to the products obtained from the main seedlings (the content of crude protein in the herbage was 21,1-22,8%), but the yield of protein in medium seedlings (4,9-6,3 c/ha) was lower that in the main seedlings (8,3-10,9 c/ha). Nutritive elements content in the obtained yield of 300-350 c/ha of herbage or 4,5-5,0 t/ha of dry matter was the following: N – 160 kg/ha, P2O5 - 40, K2O - 153, CaO - 70, MgO - 20kg/ha, with herbage yield - 190-210 c/ha or 2,2-2,5 t/ha of dry matter of medium crop - N – 94n kg/ha, P2O5 - 20, K2O - 48, CaO - 34, MgO – 9 kg/ha
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