Please use this identifier to cite or link to this item:https://hdl.handle.net/20.500.12259/88449
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: Agronomija / Agronomy (A001)
Author(s): Romaneckas, Kęstutis;Zinkevičius, Remigijus;Steponavičius, Dainius;Maziliauskas, Antanas;Butkus, Vidmantas;Marcinkevičienė, Aušra
Title: Principles of precision agriculture in on-farm spring wheat fertilization experiment
Is part of: Engineering for rural development : 14th international scientific conference : proceedings, May 20-22, 2015. Jelgava, 2015, Vol. 14
Extent: p. 558-563
Date: 2015
Keywords: Fertility mapping;Precision agriculture;Spring wheat;Yield and quality
Abstract: Precision farming is an innovative conception of agricultural production. European farmers apply the principles of precision agriculture (PA) fragmentary; therefore, we need complex investigations of technological processes in conditions of PA. In 2013-2014, the demonstrational on-farm field experiment was carried out at Alfredas Bardauskas agricultural farm, Raseiniai reg., Lithuania. The aim of the experiment was to evaluate the impact of PA technological processes on soil fertility, distribution of nutrients, weed stand density, productivity and quality of spring wheat crop. Two different agricultural systems were investigated – conventional (CA) and precision (PA). In CA, mineral fertilizers were freely distributed before sowing. In PA, fertilization rate was chosen according to the measurements of soil electrical conductivity with a mobile machine “Veris 3150 MSP” and crop stand optical properties with “OptRx” sensors. In PA conditions, spring wheat plants were well distributed and effectively competed with weeds. In PA, the quantity of P2O5 in the soil varied from 108 to 212 mg·kg-1, K2O – from 97 to 143 mg·kg-1, pH – from 6.5 to 7.4. At the beginning of the experiment, in CA conditions, the yield of grain, quantity of protein and gluten was by 3.9, 2.8 and 3.8 % higher than in PA. The differences of spring wheat productivity and quality mainly depended on higher proportion of available nutrients in CA soils
Internet: http://www.tf.llu.lv/conference/proceedings2015/Papers/091_Romaneckas.pdf
Affiliation(s): Vytauto Didžiojo universitetas
Žemės ūkio akademija
Appears in Collections:Universiteto mokslo publikacijos / University Research Publications

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