海量图书期刊资源,随时随地畅享阅读乐趣
Leaf Area in Relation to Yield of Corn Grain1Eik, Kalju; Hanway, John J. · Agronomy Journal · 1966
Effect of Nitrate and Ammonium on Growth of Corn in Nutrient Solution Sand CultureBennett, William F.; Pesek, John; Hanway, John J. · Agronomy Journal · 1964
Foliar Fertilization of Soybeans During the Seed-filling Period1Garcia L., Ramon; Hanway, John J. · Agronomy Journal · 1976
Comparisons of Laboratory and Greenhouse Tests for Nitrogen and Phosphorus Availability in Soils1Ozus, Turgut; Hanway, John J. · Soil Science Society of America Journal · 1966
Exchangeable Soil Potassium as Influenced by Seasonal Cropping and Potassium Added in Crop Residues1Grimes, Donald W.; Hanway, John J. · Soil Science Society of America Journal · 1967
Simultaneous extraction of P and K from IOWA soils with bray 1 solution containing NH <sub/>4</sub> ClEik, Kalju; Hanway, John J. · Communications in Soil Science and Plant Analysis · 1986
Chinese virtual issuePan, B.; Wang, Q.; Zhao, F. · European Journal of Soil Science · 2012
Cation exchange capacity measurementsHorn, D. P.; Alley, M. M.; Bertsch, P. M. · Communications in Soil Science and Plant Analysis · 1982
Lithium toxicity in plantsWallace, A.; Romney, E. M.; Cha, J. W.; Chaudhry, F. M. · Communications in Soil Science and Plant Analysis · 1977
Soil organic matter determinationGallardo, J.F.; Saavedra, J.; Martin‐Patino, T.; Millan, A. · Communications in Soil Science and Plant Analysis · 1987
AbstractsCommunications in Soil Science and Plant Analysis · 1994
Soil zonality of the Chukotka UplandKaravaeva, N. A. · Eurasian Soil Science · 2013
Maximizing calcium uptake by plantsKirkby, E. A. · Communications in Soil Science and Plant Analysis · 1979
SOIL ERODIBILITY, FALL AND SPRINGAnderson, C. H.; Wenhardt, A. · Canadian Journal of Soil Science · 1966