Improving energy efficiency of apple production by reduced application of pesticides

作     者：Aleksandar Sedlar Ondrej Ponjican Ferenc Kiss Rajko Bugarin Vladimir Visacki Milivoj Radojcin Krstan Keselj 

作者机构：University of Novi SadFaculty of AgricultureTrg Dositeja Obradovića 821000 Novi SadSerbia University of Novi SadFaculty of TechnologyBlv.Cara Lazara 121000 Novi SadSerbia 

出 版 物：《International Journal of Agricultural and Biological Engineering》 (国际农业与生物工程学报（英文）)

年 卷 期：2020年第13卷第4期

页      面：93-102页

核心收录：

学科分类：0202[经济学-应用经济学] 02[经济学] 020205[经济学-产业经济学] 

基　　金：This paper was supported by Ministry of Education Science and Technology Development of Republic of Serbia(No.451-03-68/2020-14/200117) 

主　　题：apple production energy flow pesticide application rates total energy input energy balancing 

摘      要：A large number of apple orchards are treated over 20 times during the vegetation period with high application rates(over 1000 L/hm^(2))or medium application rates(500-1000 L/hm^(2))of pesticides which require significant energy *** research was carried out in the Serbian region of Vojvodina with the aim to show the possibilities to reduce energy usage in apple production by reducing pesticide application rates(200-500 L/hm^(2))and smaller controlled number of treatments with pesticides while maintaining the biological efficiency of apple chemical *** results showed that the cumulative life cycle energy demand of apple production in Vojvodina,assuming a typical 22 annual treatments and relatively high pesticide application rate(1150 L/hm^(2)),was 48 GJ/hm^(2)and energy output was 94 GJ/hm^(2).Reduced number of treatments and lower pesticide application rates have a favorable impact on energy inputs associated with diesel fuel,machinery,chemicals,water and electricity consumption and usage,whereas other energy inputs remain *** energy input for 12 treatments with pesticide application rates of 381 L/hm^(2)was 36 GJ/hm^(2),which is a 25%reduction in comparison to 22 treatments with a pesticide application rate of 1150 L/hm^(2).Reduced number of treatments and pesticide application rate increased the energy use efficiency from 1.96 to 2.61,energy productivity from 0.82 kg/MJ to 1.09 kg/MJ,and net energy from 46 GJ/hm^(2)to 58 GJ/hm^(2).Results also suggest that applying the correct IPM approach can easily lead to a strong reduction in the number of treatments and a major energy saving.