[Oat productivity depending on fertilizers application on sod-podzolic loam sandy soil]
2007
Bosak, V.N. | Dembitskaya, T.V. | Mezentseva, E.G. | Golovach, A.A., National Academy of Sciences. Scientific and Practical Center for Arable Farming (Belarus). Institute for Soil Science and Agrochemistry
In the research on sod - podzol loam sandy soil the best productivity parameters of the oat variety Polonaise were ensured with organic-mineral fertilization system providing application in the crop rotation of various organic fertilizers kinds (stall dung, liquid manure, the straw) and is direct under oat N80P45K90, the grain productivity - 48,4 - 51,0 c/ha, the yield increase from aftereffect of organic fertilizers -1,5-3,4 c/ha, the application NPK 15,4 - 18,1 c/ha of grain, the crude protein content 9,0 – 9,6%, the weight of 1000 grains - 33,1 g. Fertility of sod-podzol loam sandy soil on a moraine has provided 53% of productivity of oats. Application of mineral fertilizers has promoted receiving of 36%, aftereffect of straw manure of cattle - 6%, aftereffect of the full form of green fertilizer - 5% of grain productivity. The nitrogen content in oats grain on the average for two years of research in the fertilized variants has made 1,40 - 1,65%, phosphorus 0,53 - 0,61, potassium 0,40 - 0,46%. In a control variant without fertilizers the nitrogen content has made 1,23%, phosphorus - 0,54%, potassium - 0,38%. Post-action of various kinds of organic fertilizers application into crop rotation practically has not affected change of content of basic elements of nutrition in grain of oats. Application of mineral fertilizers has increased in nitrogen content in grain by 0,10 - 0,25%. The nitrogen content in oats straw was in limits of 0,21 - 0,39%, phosphorus 0,29-0,35%, potassium 2,04-2,47%.The general remove of nitrogen depending on an experimental variant has made 41-86 kg/ha, phosphorus 18-36, potassium 40 - 98 kg/ha
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