crop operation modeling Articles

  • Optimal crop planning using a chance constrained linear programming model

    A monthly time-stepped chance constrained linear programming (CCLP) model was developed to derive optimal cropping patterns and optimal operational strategies for the Sri Ram Sagar Project, with stochastic inflows. The stochastic nature of the inflows was incorporated into the model in its equivalent deterministic form. These equivalent deterministic inflow values were estimated from the annual ...


    By IWA Publishing

  • Commercial greenhouse water demand sensitivity analysis: single crop case study

    Today water distribution utilities are trying to improve operational efficiency through increased demand intelligence from their largest customers. Moving to prognostic operations allows utilities to optimally schedule and scale resources to meet demand more reliably and economically. Commercial greenhouses are large water consumers. In order to produce effective forecasting models for ...


    By IWA Publishing

  • A weekly operational planning model for a run-off-the-river system: some simulation results from the Tambiraparani river, Tamil Nadu, India

    In the present study, a weekly operational planning model has been developed using a simulation technique for the Tambiraparani river system in Tamil Nadu, India. A planning model has been developed incorporating the important features of the existing operational policy. Paddy is the main crop cultivated in three seasons, although banana is cultivated to an appreciable extent, it has not been ...


    By IWA Publishing

  • Hierarchical modelling applied to agriculture: wheat planting decisions in the Pacific Northwest

    This paper presents a hierarchical decision model that predicted Alturas soft white spring wheat would be the best spring wheat variety to plant in the Pacific Northwest in 2006. Profitability depends on changing market demands and competition with other crops. The challenge of wheat farming is sustaining profitability. A four level hierarchical decision model approach was selected for this ...


    By Inderscience Publishers

  • A distributed hydrological model in the Heihe River basin and its potential for estimating the required irrigation water

    A Grid-based Integrated Surface–Groundwater Model (GISMOD) was developed to estimate the required irrigation water using a control-site method. The entire catchment is divided into multiple grid cells of equal size, and several grid cells can be chosen as the control sites by users in this model. The grid cells from the upper stream of each control site, which have a land-use type of farmland, ...


    By IWA Publishing

  • Evaluation of greenhouse gas emissions and design of mitigation options: a whole farm approach based on farm management data and mechanistic models

    Agricultural activities are important sources of nitrous oxide (N22O), methane (CH4) and carbon dioxide (CO2). They contribute approximately 10% of the total emitted greenhouse gases (GhG) in the European Union. We search for evaluating GhG emissions at the farm level and designing mitigation options. As emissions occur at many stages within the farm operation, it is crucial to ...


    By Inderscience Publishers

  • Novel simulation-based algorithms for optimal open-loop and closed-loop scheduling of deficit irrigation systems

    The scarcity of water compared with the abundance of land constitutes the main drawback within agricultural production. Besides the improvement of irrigation techniques a task of primary importance is solving the problem of intra-seasonal irrigation scheduling under limited seasonal water supply. An efficient scheduling algorithm has to take into account the crops' response to water stress at ...


    By IWA Publishing

  • The Effect of Off-farm Work on the Intensity of Agricultural Production

    Changes in agricultural production methods have been associated with environmental pressure and a loss of natural habitats. This paper explores the extent to which farmer participation in off-farm work (an increasing phenomenon in most developed countries) changes the intensity of agricultural input use focusing, in particular, on fertilizer and crop protection product use. A sample selection ...


    By Springer

  • Field degradation of aminopyralid and clopyralid and microbial community response to application in Alaskan soils

    High latitude regions experience unique conditions that affect the degradation rate of agrochemicals in the environment. In this study, data collected from two field sites in Alaska (Palmer and Delta) were used to generate a kinetic model for aminopyralid and clopyralid degradation and to describe the microbial community response to herbicide exposure. Field plots were sprayed with herbicides ...


    By John Wiley & Sons, Ltd.

  • Assessing agroforestry`s advantages

    Agroforestry, the deliberate placement of trees into crop and livestock operations, can help capture substantial amounts of carbon on agricultural lands while providing production and conservation benefits. However, we currently lack tools for accurately estimating current and projected carbon values in these systems. In North America, windbreaks are an effective carbon-capturing option. Only ...

  • Nitrate leaching from a potato field using adaptive network-based fuzzy inference system

    The conventional methods of application of nitrogen fertilizers might be responsible for the increased nitrate concentration in groundwater of areas dominated by irrigated agriculture. Appropriate water and nutrient management strategies are required to minimize groundwater pollution and to maximize nutrient use efficiency and production. Design and operation of a drip fertigation system ...


    By IWA Publishing

  • Agricultural Robotic Market to Reach $16.3 billion by 2020

    Agricultural Robots: Market Shares, Strategies, and Forecasts, Worldwide, 2014-2020 - The 2014 study has 430 pages, 236 tables and figures. Worldwide markets are poised to achieve significant growth as the agricultural robots are used in every aspect of farming, milking, food production, and animal control to implement automated process for the industry. Browse report @ ...


  • Monthly rainfall forecasting using neural networks for sugarcane regions in Eastern Australia

    Sugarcane is an important agricultural crop grown on the east coast of Australia. The timing and amount of rainfall is critical in determining both the yield of sugar and scheduling of harvesting operations. Rainfall forecasts issued through the Australian Bureau of Meteorology are based on general circulation models (GCMs) and have a poor skill levels. They are also limited in utility to ...


    By IWA Publishing

  • Getting seed to smallholders needs a business approach

    A locally owned, alternative model of supplying affordable seed is working for Africa’s framers, says Joe DeVries. Smallholder farmers in Africa — mostly women — wage silent battles against the elements and other forces beyond their control to feed ...


    By SciDev.Net

  • New FarmLogs hardware device automatically creates Yield Maps

    Today from InfoAg, FarmLogs, the leading all-in-one field monitoring platform and trusted partner to over 25% of U.S. row crop farms, announced the release of FarmLogs Flow, the first connected machine product to generate instant yield maps. The small plug-in hardware device integrates with the FarmLogs platform and automatically creates yield maps, eliminating the complex and manual time ...


    By TractorExport

  • The cloud isn`t just for rain anymore

    Precision agriculture has been a key enabling technology to achieve higher yields with lower cost and less environmental impact, while keeping the cost of food fairly stable Has global agricultural productivity increased or decreased in the last 25 years? It has, in fact, more than doubled since 1985. Next to advances in seed genetics, precision agriculture has been a key enabling ...

  • Rake In Greater Capacity And Higher Hay Quality

    It’s been said that the steel-toothed dump rake was first introduced in the 1860s. Of course, the process back then was to rake hay into piles, which were then pitched onto a wagon for transport to a haystack or the barn loft. To make windrows for the balers that came later, the operator simply spaced the “dumps” equally so they lined up in the field. The irony is that until ...


    By Vermeer

  • Can superfoods boost the planet’s health, too?

    As demand for African and Asian tree-based superfoods grows, researchers and entrepreneurs eye ways to maximize benefits for the environment. It can seem like new health food fads pop up every week — fads that often fade as quickly as they appear. Two gaining steam lately, though, may be worth a longer look: baobab and moringa. Traditional fare in parts of Africa (and for moringa, ...


    By Ensia

  • Climate Smart Agriculture: Zambia’s Strategy to Reduce Emissions

    The agricultural sector is believed to be the backbone of the Zambian economy thereby alleviating problems associated with poverty and food security. The development of the sector is viewed as one sustainable way of economic growth and ‘Eradicating Extreme Poverty and Hunger’ which is goal number one of the Millennium Development Goals (UN, 2000). The sector contributes to the growth ...


    By TractorExport

  • Applying ERP to the biomass supply chain

    Green alternatives to hydrocarbon-based fuels are increasingly derived from recycled waste materials, including paper and packaging materials; residues from other industrial processes, and perhaps most importantly, biomass. Biomass comprises plant waste and plant by-products, and currently represents one of the most exciting avenues of research in the development of alternatives to fossil fuels. ...


    By MHG Systems Ltd

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