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Citrus Talks-Soils And Subsoils, Charles C. Chapman Oct 2014

Citrus Talks-Soils And Subsoils, Charles C. Chapman

Charles C. Chapman Citrus Speeches

Mr. Chapman discusses the cultivation and maintenence of healthy, productive soils for citrus fruit farming. Topics he touches on include soil testing, soil composition, cover crops, fertilizers, drainage, irrigation, aeration and mulching. He emphasizes that neglect of any of these aspects of a growers' soil will lead to unhealthy, diseased trees.


Drivers Of Spatial And Temporal Variation In Soybean Yield And Irrigation Requirements In The Western Us Corn Belt, Patricio Grassini, Jessica A. Torrion, Kenneth Cassman, Haishun Yang, James Specht May 2014

Drivers Of Spatial And Temporal Variation In Soybean Yield And Irrigation Requirements In The Western Us Corn Belt, Patricio Grassini, Jessica A. Torrion, Kenneth Cassman, Haishun Yang, James Specht

Department of Agronomy and Horticulture: Faculty Publications

Both rainfed and irrigated soybean production are important in Nebraska (western US Corn Belt), accounting for a respective 48 and 52% of the state’s soybean production of 7 Mt on a respective 55 and 45% share of the state soybean area of 1.9 Mha. To date, no assessment of factors that may account for regional and inter-annual variation in yield and irrigation amount has been performed. To accomplish that objective, we evaluated a database containing on-farm field yields and total irrigation amount used in those fields. These data have been collected annually from ca. 1000 soybean fields in six regions …