Efficiency of application of fertilizers in the differentiated crop rotations in the conditions of a heterogeneous soil cover of Polesye | Эффективность применения удобрений в дифференцированных севооборотах в условиях гетерогенного почвенного покрова Полесья
2010
Shik, A.S. | Antonyuk, A.S. | Bachilo, V.A., National Academy of Sciences (Belarus). Polesye Agrarian Ecological Inst. (Brest) | Ustinova, A.M. | Likhatsevich, N.A., Brest State Univ. named after A.S. Pushkin, Brest (Belarus) | Satishur, V.A., National Academy of Sciences. Scientific and Practical Center for Arable Farming (Belarus). Institute for Soil Science and Agrochemistry
In the conditions of the Republic of Belarus in 2006-2010 there was studied the influence of different doses of fertilizers on crop-producing ability of deflationary dangerous soils and agronomic and economic efficiency of use of the differentiated crop rotations in conditions of a heterogeneous soil cover of the western part of Belarusian Polesye. In course of the study there were analyzed 3 soil varieties: peaty gley drained soil; sod-gley drained sandy soil; sod-podzolic gley drained sandy soil. It was found that entering of fertilizers rendered a good influence on crop-producing ability of deflationary dangerous soils of Polesye both at a traditional (grain-hoed), and soil-protective (grass-grain) crop rotations. Crop productivity increased on 8.1-28.3 c/ha of fodder units on an average for a rotation of traditional crop rotation and on 10.0-21.1 c/ha of fodder units in a soil-protective crop rotation. As a whole, a recoupment of mineral fertilizers by crop increase in a traditional crop rotation was above, than in a soil-protective one. In a traditional crop rotation the greatest recoupment was obtained on peat-gley soil at entering of N73P64K120 (11.0 kg of fodder units). On mineral soils a recoupment approximately on 2 kg of fodder units was low, than on peat-gley soil. In a soil-protective crop rotation the greatest recoupment of 1 kg NPK was obtained on drained sod-gley sandy soil in a variant N566Р84К148 + microelements (9.2 kg of fodder units).
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