Naslov
Application of ALXP computer model for fertilization recommendation in conservation soil tillage systems
(Application of ALXP computer model for fertilization recommendation in conservation soil tillage systems)

Autori
Đurđević, Boris ; Jug, Danijel ; Jug, Irena ; Vukadinović, Vesna ; Stipešević, Bojan ; Brozović, Bojana

Vrsta, podvrsta i kategorija rada
Sažeci sa skupova, sažetak, znanstveni

Izvornik
Solutions and projections for sustainable soil managment / Belić, Milivoj ; Nešić, Ljiljana ; Manojlović, Maja ; Ćirić, Vladimir - Novi Sad : Faculty of Agriculture, Novi Sad, 2017, 110-110

ISBN
978-86-7520-410-7

Skup
2nd International and 14th National congress of soil science society of Serbija

Mjesto i datum
Novi Sad, Srbija, 25.10.2017. - 28.10.2017

Vrsta sudjelovanja
Predavanje

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
fertilization ; computer model ; conservation soil tillage ; soil conditioning ; nitrogen

Sažetak
Some of the most important agrotechnical measures in crop production are soil tillage and fertilization. Irregular and scientifically unfounded implementation of above mentioned measures have negative effects on environment, yields, profit and in the end on health safety of food. Producing safe food while preserving the environment is a standard today, but it also requires a rapid response of agricultural producers to the newly arisen situations. Main objective of this paper is to test the advanced expert model for calculation of optimal nitrogen fertilization in different conservational systems of tillage. The model takes into account 30 parameters on basis of which it calculates recommendations for fertilization together with a proposal of measures for soil conditioning. Multi- year research trials are conducted in central part of Croatia (this paper will present only two experimental years – climatically very divergent) on the soils of limited fertility for winter wheat and maize with five different tillage systems (T1- Conventional soil tillage, T2-Subsoiling, T3- Chiseling, T4-Discharrowing, T5-No-tillage) and three levels of nitrogen fertilization (N1 - model calculated optimal level, N2 - 50% lower dosage and N3 - 50% higher dosage). On the basis of obtained results it was determined that the weather conditions had the strongest impact, after that tillage and the nitrogen fertilization had the weakest impact primarily on yield and yields components. By application of AlXp computer model, significant impact on ecological and economic justification of cultivation of winter wheat and maize was accomplished, by selecting optimal agrotechnical procedures (soil tillage and nitrogen fertilization) in compliance with agroecologic conditions.

Izvorni jezik
Engleski

Znanstvena područja
Poljoprivreda (agronomija)

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