Soil ScienceWeaver,R.W.,FrederickL R,Dumeril,L C.Effect of soybean cropping and soil properties on number of rhizobium Japonicum in lowa Soils.Soil Science. 1972Weaver , R. W. , Frederick L1R1 ,Dumeril ,L1C1 Effect of soybean cropping and soil properties on number of rhizobium Japonicum...
Iowa Soil Properties and Interpretations Database Iowa Southern Utilities Iowa Soybean Association Iowa Soybean Promotion Board ▼Complete English Grammar Rules is now available in paperback and eBook formats. Make it yours today! Advertisement. Bad banner? Please let us know Remove AdsFace...
be spread on corn and soybean fields or put into manure storages to be spread later in the year. Farmers spread manure on their fields to recycle. Just like how we recycle cans and paper at home. The manure is used to replenish nutrients in the soil for the crop planted for that year...
Understanding soil organic N (ON) pool enrichment may help explain why rates of N fertilization required to attain maximum corn (Zea mays L.) yields are usually lower for corn following soybean [Glycine max (L.) Merr.] than for corn following corn. Our objectives were to quantify the ON ...
Mycorrhizal and Soil-borne Pathogen Colonization of Four Soybean Varieties in Iowa.Adriana MurilloWilliams
Soil surface property and soybean yield response to corn stover grazing. Agron. J. 96:1364-1371. doi:10.2134/agronj2004.1364CLARK, J.T.; RUSSELL J.R.; KARLEN, D.L.; SINGLETON, P.L.; BUSBY W.D.; PETERSON B.C. Soil surface property and soybean yield response to...
L. Soil organic nitrogen enrichment following soybean in an Iowa corn-soybean rotation. Soil Sci. Soc. Am. J. 2006, 70, 382-392. (48) Brouder, S.; Hofmann, B.; Kladivko, E.; Turco, R.; Bongen, A.; Frankenberger, J. Interpreting nitrate concentration in tile drainage water. ...
Within-Field Variation of Corn and Soybean Yield and Soil pH Responses to Lime Application in Iowa.Agustin Pagani
Nitrogen fertilizer rate is a key factor affecting soil organic C (SOC) in corn-based cropping systems. The objective of this study was to determine the change in SOC in response to long-term N rates for continuous corn and corn-soybean cropping systems at two sites in Iowa. Soil samples ...
2006. Evaluation of Potassium Soil Tests and Methods for Mapping Soil Fertility Properties in Iowa Corn and Soybean Fields. Dissertation submitted to the graduate faculty in partial fulfillment of the requirements for the degree of Doctor of Philosophy of Iowa State University, Iowa....