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The Effect of Different Tillage Systems, Nitrogen Fertilizer and Mycorrhiza on Mung Bean (Vigna radiata) Production and Energy Indices
Communications in Soil Science and Plant Analysis ( IF 1.8 ) Pub Date : 2020-12-29 , DOI: 10.1080/00103624.2020.1862145
Babak Lotfi 1 , Abbas Maleki 2 , Mohammad Mirzaei Heydari 2 , Mahmood Rostaminiya 3 , Farzad Babaei 2
Affiliation  

ABSTRACT

Concerns about fossil fuel conservation and greenhouse gas emissions have oriented higher research on energy balance in crop production systems. The purpose of this study was to investigate the yield and energy indices of mung bean crops cultivated in Darehshahr research fields in two years (2017 and 2018). The experiment was conducted in a split randomized complete block design with three replications. Treatments consisted of tillage at three levels as conventional, conservation and no tillage system in the main plot, nitrogen fertilizer at four levels (control (without fertilizer), 33%, 66% and 100% of recommended fertilizer in sub plot, and mycorrhizal fungi (Glomus mosse) at two levels (control (no application) and application) in sub-sub-plot. During two years of study, energy consumption data for crop production and its operations were recorded. Our results indicated that the highest grain yield was observed from the conservation tillage treatment as 2842 kg ha−1. The highest input energy was recorded for conventional tillage system and application of 100% N fertilizer. However, the highest energy output was obtained from the conservation tillage treatment with 66% nitrogen. The calculation of energy indices showed that the no-tillage system outperformed the other systems in terms of energy efficiency (7%) and energy productivity (0.8 kg MJ−1). For the conventional tillage system, energy efficiency (4.2%) and energy productivity (0.42%) were the lowest energy indices. Increasing nitrogen levels from 0.0 to 100%, reduced energy efficiency and energy productivity by 18.3% and 8.2%, respectively.



中文翻译:

不同耕作制度,氮肥和菌根对绿豆产量和能量指标的影响

摘要

对化石燃料节约和温室气体排放的关注使对作物生产系统中能量平衡的研究更加深入。这项研究的目的是调查在Darehshahr研究场种植的两年(2017年和2018年)绿豆作物的产量和能量指数。该实验是在具有三个重复的分裂随机完整区组设计中进行的。处理方法包括常规耕作三个水平的耕作,主耕作的保护性耕作和无耕作制度,四个层次的氮肥(对照(无化肥),次耕作推荐肥料的33%,66%和100%)以及菌根真菌(Glomus mosse)分为两个子级别(控制(无应用程序)和应用程序)。在为期两年的研究中,记录了作物生产及其运营的能耗数据。我们的结果表明,从保护性耕作处理中观察到最高的谷物产量为2842 kg ha -1。常规耕作系统和100%N肥料的使用记录了最高的输入能量。但是,通过使用66%的氮进行的保护性耕作处理可获得最高的能量输出。能源指数的计算表明,免耕系统在能源效率(7%)和能源生产率(0.8 kg MJ -1)方面优于其他系统)。对于传统的耕作系统,能源效率(4.2%)和能源生产率(0.42%)是最低的能源指标。将氮含量从0.0%提高到100%,分别降低了能源效率和能源生产率,分别降低了18.3%和8.2%。

更新日期:2021-01-28
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