Please use this identifier to cite or link to this item:https://hdl.handle.net/20.500.12259/86601
Type of publication: Straipsnis konferencijos medžiagoje Clarivate Analytics Web of Science ar/ir Scopus / Article in Clarivate Analytics Web of Science or Scopus DB conference proceedings (P1a)
Field of Science: Aplinkos inžinerija / Environmental engineering (T004)
Author(s): Gužys, Saulius
Title: Phosphorus and Potassium Migration in Different Crop Rotations
Is part of: Rural development 2013 : the sixth international scientific conference, 28-29 November, 2013, Akademija : proceedings. Akademija : Aleksandras Stulginskis University, Vol. 6, b. 3 (2013)
Extent: p. 261-265
Date: 2013
Keywords: Phosphorus;Potassium;Yield;Concentration;Leaching;Balance
Abstract: The investigations were carried out during 2006-2011 in the land of the Water resources engineering institute of ASU, in village of Lipliūnai on Endocalcari Endohypogleyic Cambisol (CMg-n-w-can). The base of investigations is 3 drainage systems, which contain cereals differing in fertilization and grasses crop rotations. The aim of investigations is to determine the crop rotations differing in fertilization and this relations with cycles of phosphorus and potassium in agroecosystem. Higher productive was perennial grasses crop rotation. In the conditions of cereal crop rotations this productive was 3-46% lesser. The highest concentration of P-PO4 3- in drainage water was received in the conditions of higher fertilization cereals crop rotation while highest concentration of total P and K+ in the conditions of grasses crop rotation. The highest leaching of P-PO4 3- and total P by drainage was received under the conditions of higher fertilization cereals crop rotation. The highest leaching of K+ was received under the conditions of grasses crop rotation. The leaching of P-PO4 3- and potassium essentially depends on fertilization, drainage runoff as well as cumulative and yearly balance of P and K. The application of all crop rotations was distinguished by positive P balance. Cumulative balance of potassium under the conditions of higher fertilization cereal crop rotation was moderate negative. The highest deficit of cumulative potassium balance was received under the conditions of grasses crop rotation. The aim of our investigations is to estimate of dependence of migration phosphorus and potassium on environmental factors
Internet: https://hdl.handle.net/20.500.12259/86601
Affiliation(s): Vytauto Didžiojo universitetas
Žemės ūkio akademija
Appears in Collections:Universiteto mokslo publikacijos / University Research Publications

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