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Articles 1 - 5 of 5
Full-Text Articles in Physical Sciences and Mathematics
Effect Of Stubble Mulching On Number And Activity Of Earthworms, S. P. Teotia, F. L. Duley, T. M. Mccalla
Effect Of Stubble Mulching On Number And Activity Of Earthworms, S. P. Teotia, F. L. Duley, T. M. Mccalla
Nebraska Agricultural Experiment Station: Historical Research Bulletins
A survey of earthworm population under different cropping systems was made under stubble mulch farming and where the residue was plowed under. The influence of earthworms on some of the important physical and biological properties of the soil was studied. Their role in the decomposition of crop residues was also determined.
Microorganisms And Soil Structure, T. M. Mccalla
Microorganisms And Soil Structure, T. M. Mccalla
Department of Agronomy and Horticulture: Faculty Publications
SUMMARY
Laboratory tests were made to determine the effectiveness of different compounds and microbial groups in increasing the stability of Peorian loess lumps against the action of falling water drops. The influence of these on percolation tests in the laboratory was also determined.
Many organic substances-dextrose, sucrose, starch, peptone, cullulose, and gum arabic-did not themselves contribute directly to soil-structure stability, though these substances do furnish energy material for soil microorganisms, which can convert them readily into either microbial tissue or decomposition products that increase soil-structure stability. Lignin, proteins, oils, fats, waxes, resin, and paraffin increased the stability of lumps of …
A Subsurface Study Of The Pleistocene Deposits In Kearney County And Adjoining Parts Of Adams, Franklin, And Webster Counties (Includes Text Analyses And Thesis Material), Vincent H. Dreeszen
A Subsurface Study Of The Pleistocene Deposits In Kearney County And Adjoining Parts Of Adams, Franklin, And Webster Counties (Includes Text Analyses And Thesis Material), Vincent H. Dreeszen
Conservation and Survey Division
No abstract provided.
Generalized Soil Map Of Nebraska
Generalized Soil Map Of Nebraska
Conservation and Survey Division
No abstract provided.
Areas In Nebraska Of Subirrigated Vegetation, John Elder
Areas In Nebraska Of Subirrigated Vegetation, John Elder
Conservation and Survey Division
No abstract provided.