权威例句
Temvik, North DakotaTemvik, North DakotaTemvik, North DakotaTemvik, North DakotaNitrogen Mineralization Responses to Cropping, Tillage, and Nitrogen Rate in the Northern Great PlainsEffects of Plant Population, Row Spacing, and Relative Maturity on Dryland Corn in the Northern Plains. I. Corn Forage and Grain YieldTillage and nitrogen fertilization influences on grain and soil nitrogen in a spring wheat-fallow systemEffects of Topsoil and Subsoil Thickness on Soil Water Content and Crop Production on a Disturbed SoilEffects of plant and row spacing on dryland soybean yield and water-use efficiencySunflower Yield and Water Use as Influenced by Planting Date, Population, and Row Spacing
