Energy efficiency of crop cultivation in crop rotation chains
نویسندگان
چکیده
منابع مشابه
Multinomial Logistic Regression on Markov Chains for Crop Rotation Modelling
Often, in dynamical systems, such as farmer’s crop choices, the dynamics is driven by external nonstationary factors, such as rainfall, temperature, and economy. Such dynamics can be modelled by a nonstationary Markov chain, where the transition probabilities are logistic functions of such external factors. We investigate the problem of estimating the parameters of the logistic model from data,...
متن کاملCrop rotation modelling
For use in an Internet application on whole farm modelling we needed to determine a reasonable crop rotation given only the crops in the rotation and the number of hectares of each crop. The crop rotation problem considered in this paper is therefore that of determining hectares of precrops for each crop. Crop rotation modelling in general is traditionally done by using linear programming. In t...
متن کاملNon-Parametric Energy Use Efficiency, Energy Ratio and Specific Energy for Irrigated Wheat Crop Production
In this paper, non parametric Data Envelopment Analysis (DEA) was subjected to the energy data of wheat producers in Punjab state, India, and technical, pure technical and scale efficiencies were calculated for farms both category wise and zone wise. The main objective was to determine the strength of the correlation between non-parametric efficiencies and indices such as energy ratio and speci...
متن کاملHybrid Metaheuristics for Crop Rotation
This work presents a mathematical model adapted from literature for the Crop Rotation Problem with Demand Constraints (CRP-D). This highly complex combinatorial problem is devised to find a vegetable planting program that takes into account green fertilization restrictions, the set-aside period, planting restrictions for neighboring lots and for crop sequencing, demand constraints, while, at th...
متن کاملEnergy Crop-Based Biogas as Vehicle Fuel—The Impact of Crop Selection on Energy Efficiency and Greenhouse Gas Performance
The production of biogas from six agricultural crops was analysed regarding energy efficiency and greenhouse gas (GHG) performance for vehicle fuel from a field-to-tank perspective, with focus on critical parameters and on calculation methods. The energy efficiency varied from 35% to 44%, expressed as primary energy input per energy unit vehicle gas produced. The GHG reduction varied from 70% t...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Taurian Scientific Herald
سال: 2019
ISSN: 2226-0099
DOI: 10.32851/2226-0099.2019.110-1.11