3,021 research outputs found

    Wayne E. Sabbe Arkansas Soil Fertility Studies 2018

    Get PDF
    Rapid technological changes in crop management and production require that the research efforts be presented in an expeditious manner. The contributions of soil fertility and fertilizers are major production factors in all Arkansas crops. The studies described within will allow producers to compare their practices with the university’s research efforts. Additionally, soil-test data and fertilizer sales are presented to allow comparisons among years, crops, and other areas within Arkansas

    Wayne E. Sabbe Arkansas Soil Fertility Studies 2017

    Get PDF
    Rapid technological changes in crop management and production require that the research efforts be presented in an expeditious manner. The contributions of soil fertility and fertilizers are major production factors in all Arkansas crops. The studies described within will allow producers to compare their practices with the university’s research efforts. Additionally, soil-test data and fertilizer sales are presented to allow comparisons among years, crops, and other areas within Arkansas

    Wayne E. Sabbe Arkansas Soil Fertility Studies 2022

    Get PDF
    Rapid technological changes in crop management and production require that the research efforts be presented in an expeditious manner. The contributions of soil fertility and fertilizers are major production factors in all Arkansas crops. The studies described within will allow producers to compare their practices with the university’s research efforts. Additionally, soil-test data and fertilizer sales are presented to allow comparisons among years, crops, and other areas within Arkansas

    An Examination of Fertilizer Use Efficiency and Irrigation Management in Tennessee Agricultural Production

    Get PDF
    Understanding the effect of supplemental irrigation and timing of nitrogen availability on yield of cotton is pertinent to the success of Tennessee cotton producers. Response to irrigation and nitrogen source is likely to vary across greatly differing soil types. This research indicated the need for higher amounts of water and earlier irrigation initiation to optimize yields in coarse-textured, low water holding capacity soils. Deep silt loam soils did not respond to irrigation in two wet years. Delaying nitrogen availability via use of a polymer coated urea fertilizer generally either lowered or did not affect yield. Delaying nitrogen availability was less detrimental to yield in coarse-textured soils, but was not a superior method to supply crop nitrogen demand. Soil sampling is the foundation for addressing a field’s nutrient status and possible need for fertilization. Proper fertilization is economically and agronomically attractive, as well as environmentally responsible. To facilitate precision nutrient management, sampling methods are needed to more precisely define nutrient variability than a field average. We looked at techniques for grid sampling, delineation of management zones, and optimal intensity of cores necessary. Grid sampling is a popular method for diagnosing in-field nutrient variability, but is time consuming. We found grid-point sampling to capture more variability across a field than grid-cell sampling, agreeing with the majority of previous research. Delineation of management zones was successful in grouping nutrient variability using soil maps of varying scale and yield maps. A sampling intensity of 2-8 cores/acre was optimal

    Profitable Crops DSS

    Get PDF
    This report is divided into five chapters named Chapter 1, Chapter 2, Chapter 3, Chapter 4 and Chapter 5 accordingly. First it represents the abstract of this report. Chapter 1 describes the background of study, problem statement and objective and scope of study. Chapter 2 is about the literature review/theory in practice, conduct research to build a point of view or to critics the findings that related to the project. Chapter 3 consists of methodology section which explained in details about the procedures and methodology used and the tools/software needed to implement the project. The result and discussion and also conclusion are described in the Chapter 4 and Chapter 5. The focus of this project paper is to study profitable crops in the industry which can be extended to develop a new system to aid the grower in Malaysia. The system will be develop to assist targeted farmer to make better decision on the profitable crops and perfectly suitable to be grown on their land

    Incentives for Fertilizer Use in Sub-Saharan Africa: A Review of Empirical Evidence on Fertilizer Response and Profitability

    Get PDF
    This research addresses two questions: Why is fertilizer not yet fulfilling its potential as a major stimulus to agricultural productivity in SSA? What can be done to improve the situation? Our answers are based on an extensive review of fertilizer response, profitability, and policy literature as well as some analysis of crop budgets and aggregate national statistics on fertilizer consumption. Much of the debate about fertilizer use in SSA focuses on two issues: whether the profit incentive is adequate and, if so, whether farmers have the capacity to access and use it.food security, food policy, fertilizer use, sub-Saharan Africa, Crop Production/Industries, Downloads May 2008-July 2009: 153, Q18,

    Precision Agriculture Technology for Crop Farming

    Get PDF
    This book provides a review of precision agriculture technology development, followed by a presentation of the state-of-the-art and future requirements of precision agriculture technology. It presents different styles of precision agriculture technologies suitable for large scale mechanized farming; highly automated community-based mechanized production; and fully mechanized farming practices commonly seen in emerging economic regions. The book emphasizes the introduction of core technical features of sensing, data processing and interpretation technologies, crop modeling and production control theory, intelligent machinery and field robots for precision agriculture production
    • …
    corecore