Theses from 1963
Effects of nitrogen supply on the cation exchange capacity of cereal roots and its relation to Ca adsorption from Ca-H bentonite clay systems by excised roots., Ronald Paul White, Agronomy
Theses from 1962
The effects of some environmental factors on growth and control of northern nutgrass., Eugene Raymond Hill, Agronomy
Theses from 1961
The use of fish by-product materials as fertilizers - alone and in mixtures or formulations., Roy Augustus Barrett, Agronomy
Theses from 1959
Interaction between height of cut and various nutrient levels on the development of turfgrass roots and tops., Evangel John Bredakis, Agronomy
Theses from 1958
A comparison of liquid and solid fertilizer for turf., Norman Henry MacLeod, Agronomy
Theses from 1957
Relationship of root cation exchange capacity to calcium uptake., John M. White, Agronomy
Theses from 1956
The role of nitrogen on the increased availability of fertilizer phosphorus., William Makepeace Atwood, Agronomy
An investigation into the relation of soil compaction and soil fertility as affecting root development in soils., Philip R. Pearson, Agronomy
Theses from 1955
A study of the physical properties of eolian influenced soils in the central lowland of Connecticut and Massachusetts., A. Ritchie, Agronomy
Theses from 1953
The effect of several organic salts with hydrogen ion in solubilizing rock phosphate., Joseph Angelini, Agronomy
Studies on cation exchange capacity of plant roots with reference to their ecological phenomena., Eliot Epstein, Agronomy
The curing of cigar tobacco with the use of kerosene as a source of heat, in comparison with the use of liquified petroleum gas for the purpose., Claus Hans Tameling, Agronomy
The effect of soil fertility, rate of planting and variety on the value of corn for silage., Hrant M. Yegian, Agronomy
Theses from 1952
Potassium competition in grass-legume associations as a function of root cation exchange capacity., Bryce Carroll Gray, Agronomy
Theses from 1951
The precipitation of phosphorus by iron and aluminum as influenced by pH and pure organic substances., Donald Bigelow Bradley, Agronomy
Solubilization effect of citric acid on some insoluble phosphate salts., Jean Joseph Lucien Leclerc, Agronomy
Theses from 1950
The chemical composition of the foliage of different plant species as affected by soils derived from different rocks., Jean-Marie Lapensee, Agronomy
Effects of rates and ratios of calcium, magnesium, and potassium on composition and yield of Ladino clover., Philip Beaumont Turner, Agronomy
Theses from 1949
Up-take of selenium by carnations, loss of selenium from treated soils by leaching, and occurrence of selenium in Massachusetts soils., Robert John Allen, Agronomy
The elimination of white clover (Trifolium repens) from turf with particular reference to nitrogen levels., Geoffrey S. Cornish, Agronomy
Spent hops for construction of turf areas., Moyle E. Harward, Agronomy
The influence of parent material on the base exchange of soils., Michael Neznayko, Agronomy
The availability to plants of applied phosphorus as influenced by the presence of organic materials and fluoride., Glenn C. Russell, Agronomy
Color as a soil amendment., Roy Edward Sigafus, Agronomy
The influence of organic anions on the replacement of fixed phosphates at various pH levels., Paul Herbert Struthers, Agronomy
The toxicity of the copper ion in the growth of soy beans and the influence of the copper ion on the transfer of magnesium in soy bean seedlings from seed and growing medium to the aerial parts of the plant., Gordon Franklin Thomas, Agronomy
Theses from 1948
The fixation of phosphorus by iron and its replacement by organic and inorganic ions., Richard Merrill Swenson, Agronomy
Theses from 1947
The relative effect on the nitrogen content of buckwheat plants grown in a medium treated by varied concentrations and combinations of boron, manganese, and copper ions., Garland Booker Bass, Agronomy
The relative effect of various types of vegetative tissues on the total base exchange capacity, exchangeable bases and pH value of a laminated clay., Ivan Hope Tomlinson, Agronomy
Theses from 1942
The influence of family relationships upon the uptake of nitrogen in the soil by plants., A. Boy Pack, Agronomy
Theses from 1941
A study of absorption and excretion of potassium and calcium by the roots of barley in different solution media and changes in hydrogen-ion concentration., George Wenzel, Agronomy
Theses from 1940
The effect of certain organic compounds on the flocculation of clay suspension., Edward Theodore Clapp, Agronomy
The relative toxicity of certain ions and the function of the calcium ion as an antagonist, as indicated by soybean roots., Plese Corbett, Agronomy
The lignin and methoxyl content of some common crops., John Wendell Hurdis, Agronomy
The effect of the calcium ion on the development of soy bean seedling and the antagonism of this ion to arsenic, boron, and selenium ions., Elvin Ted Miles, Agronomy
The effect of certain plant residues upon the buffer capacity of two Massachusetts soils., Moody Francis Trevett, Agronomy
Theses from 1939
A study of the percentage and total intake of certain elements by calciphilic and calciphobic plants grown on soils varying in pH., William H. Bender, Agronomy
Some factors influencing the activity of Aspergillus niger., Charles H. Moran, Agronomy
The relative rate of nitrification of nitrogen materials on certain tobacco soils from Canada., Julien Richard, Agronomy
Theses from 1938
Nitrification in soils of Massachusetts as influenced by soil type and source of nitrogen, Raymond B. Farnsworth, Agronomy
Rates of decomposition of various bedding materials., John M. Zak, Agronomy
Theses from 1937
Increasing the iron content of hay grown on soils producing nutritional anemia in Massachusetts livestock, Karol Joseph Kucinski, Agronomy
Theses from 1936
The effect of additions of calcium hydroxide upon the solubility of phosphorus in certain Massachusetts soils, John Nelson Everson, Agronomy
Theses from 1934
Oxidation-reduction potentials and their application to soils, Matthew Cotton Darnell, Agronomy
Theses from 1932
Studies of methods for determination of magnesium deficiency in soils, Jay L. Haddock, Agronomy
Theses from 1931
Some factors affecting the flora of pastures, Richard Carol Foley, Agronomy
The effect of some forms of nitrogen on the growth and nitrogen content of wheat and rice plants, Guy. Thelin, Agronomy
Theses from 1930
The Ammonification and nitrification of cottonseed meal and the nitrification of ammonium sulphate, Harold R. Knudsen, Agronomy
A study of varietal and cultural factors affecting stand and yield of soybeans, Rhea E. Stitt, Agronomy
Theses from 1928
The salt requirement of Havana tobacco with nitric and ammonic nitrogen, Oliver W. Kelly, Agronomy
Nitrate nitrogen accumulation in soils as affected by soil reaction and certain treatments, George J. Larsinos, Agronomy
The effect of boron and manganese on the growth of tobacco plants, T. Robert Swanback, Agronomy
Theses from 1927
On the nitrate accumulation as affected by soil type, soil management and cropping system, Alwyn C. Sessions, Agronomy
Theses from 1917
The decomposition of organic matter in soils, Fred G. Merkle, Agronomy
Effect of one crop upon another and upon the fertility of the soil, S. G. Mutkekar, Agronomy