Search
Now showing items 1-10 of 16
Control of the protein content of Thatcher wheat by nitrogen fertilization and moisture stress
Author(s):Hutcheon, W. L.; Paul, Eldor A.
Date Issued:1966-06
Format:born digital; articles
Experiments are reported in which it was shown that the protein content of spring wheat, grown in the growth chamber, could be effectively controlled by nitrogen supply and soil moisture stress. Protein contents above 16% ...
Measurement of the polysaccharide content of soils
Author(s):Acton, C. J.; Paul, E. A.; Rennie, D. A.
Date Issued:1963-01
Format:born digital; articles
The polysaccharide content of two soils, measured by precipitating and weighing the microbial gums from the fulvic acid fraction of soil organic matter, and by colorimetric analyses using anthrone, was increased appreciably ...
Relationship of polysaccharides to soil aggregation, The
Author(s):Acton, C. J.; Rennie, D. A.; Paul, E. A.
Date Issued:1963-07
Format:born digital; articles
Studies were conducted on two soil types to determine whether variations in level of aggregation, induced by adding wheat straw were accompanied by significant changes in the polysaccharide content of the soils. The addition ...
Influence of nitrogen on the decomposition of crop residues in the soil, The
Author(s):Lueken, H.; Hutcheon, W. L.; Paul, Eldor A.
Date Issued:1962-08
Format:born digital; articles
Additions of mineral nitrogen accelerated the initial decomposition rate of incorporated wheat straw, alfalfa hay and glucose when added to two soils differing widely in organic matter content. However, in the more advanced ...
Effect of various clover management practices on gaseous N losses and mineral N accumulation, The
Author(s):Aulakh, M. S.; Rennie, D. A.; Paul, E. A.
Date Issued:1963-08
Format:born digital; articles
A 2-yr field study was carried out to assess gaseous losses of N as N2O + N2 from two Black Chernozemic soils, where during year 1 wheat was underseeded to clover and in year 2, the clover in late June was (a) green-manured ...
Nitrate ion electrode method for soil nitrate nitrogen determination
Author(s):Paul, Eldor A.; Myers, R. J. K.
Date Issued:1968-10
Format:born digital; articles
Spectrophotometric measurement of soil color and its relationship to moisture and organic matter
Author(s):Paul, E. A.; Shields, J. A.; Head, W. K.; St. Arnaud, R. J.
Date Issued:1968-10
Format:born digital; articles
The color of soil samples taken from the Ap horizons of Chernozemic and Gray Wooded (Podzolic) soils was measured spectrophotometrically at moisture levels ranging from air-dryness to field capacity. The Munsell re-notations ...
Measurement of soil color
Author(s):Paul, E. A.; Shields, J. A.; St. Arnaud, R. J.; Clayton, J. S.
Date Issued:1966-02
Format:born digital; articles
The color of cultivated surface samples from Chernozemic and Gray Wooded soils were measured by visual and spectroreflectance methods. Variations in visual color measurements among different observers were of sufficient ...
Effect of moisture, temperature, and nitrogen on yield and protein quality of Thatcher wheat
Author(s):Paul, E. A.; Sosulski, F. W.; Lin, D. M.
Date Issued:1966-04-28
Format:born digital; articles
Soil moisture level was the most important factor controlling plant and grain yields while nitrogen fertilizer had the greatest influence on protein content and sedimentation value. Lower temperatures and nitrogen fertilization ...
Investigations of the dynamics of soil humus utilizing carbon dating techniques
Author(s):Rennie, D. A.; Campbell, C. A.; Paul, Eldor A.; McCallum, K. J.
Date Issued:1964
Format:born digital; articles
The radioactivity of naturally occurring C14 in soil humus when compared to the C14 activity of a standard of recent origin (carbon dating) can be used to estimate the mean residence time of the soil humus in studying ...