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Browsing by Author "Mason, John E."

Now showing 1 - 3 of 3
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    2014 Commercial Vegetable Production Recommendations
    Reiter, Mark S.; Rideout, Steven L.; Kuhar, Thomas P.; Wilson, Henry P.; Parkhurst, James A.; Straw, Allen; Samtani, Jayesh B.; Gu, Ganyu; Mullins, Chris; Hines, Thomas E.; Waldenmaier, Christine M.; Doughty, Hélène; Mason, John E.; Freeman, Josh H. (Virginia Cooperative Extension, 2014-02-19)
    New varieties and strains of vegetables are constantly being developed throughout the world and it is impossible to list and describe all of them, only those that are available and are adapted to the mid-Atlantic region are listed in this publication. The ultimate value of a variety for a particular purpose is determined by the grower: performance under his or her management adaptation to specific environmental conditions, and having desired horticultural characteristics.
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    Proper fertilizer placement through better soil sampling with precision agriculture
    Mason, John E. (Virginia Tech, 2020-09-09)
    Fertilizer use and proper nutrient management are key components to stay economically competitive in agriculture. Fertilizer that is removed from fields during harvest must be replaced to ensure nutrient availability for crop production. Soil sampling is the best way to determine the amount of nutrients need, but where they are needed depends on the type of sampling. Traditionally samples were collected so that one sample represented 20 acres, sometimes samples are grouped by soil series, A Veris 3100 EC cart (Veris Technologies, Salina, KS; http://www.veristech.com/) was used to map soil texture and sampled on a 100 ft X 100 ft grid to compare the different methods. Results from the study demonstrated significant spatial variability was present between whole field composite sampling, traditional field sampling, zone sampling, and zone 2.5 acre grid sampling.
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    Sensor-Based, Variable-Rate Nitrogen Applications in Virginia
    Reiter, Scott; Mason, John E.; Thomason, Wade E. (Virginia Cooperative Extension, 2014-08-08)
    Variable-rate applications (VRA) of nitrogen (N) fertilizers are a new option to assist producers with real-time fertilizer rate decisions. This publication helps farmers make decisions about nitrogen fertilizer use.