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Articles 1 - 15 of 15
Full-Text Articles in Soil Science
Groundwater Map Of Nebraska, November 1960, E. C. Reed, V. H. Dreeszen
Groundwater Map Of Nebraska, November 1960, E. C. Reed, V. H. Dreeszen
Conservation and Survey Division
No abstract provided.
Wells In Fillmore County, Nebraska, C.F. Keech
Wells In Fillmore County, Nebraska, C.F. Keech
Conservation and Survey Division
No abstract provided.
Wells In Hamilton County, Nebraska, C.F. Keech
Wells In Hamilton County, Nebraska, C.F. Keech
Conservation and Survey Division
No abstract provided.
The Influence Of Soil Moisture Suction And Evaporative Demand On Actual Evapotranspiration And Yield Of Alfalfa, Bozorg Bahrani
The Influence Of Soil Moisture Suction And Evaporative Demand On Actual Evapotranspiration And Yield Of Alfalfa, Bozorg Bahrani
All Graduate Theses and Dissertations, Spring 1920 to Summer 2023
Evapotranspiration has been defined as the combination of evaporation of water from the soil surface and transpiration of water by vegetation. If the ground is well covered by plants, most of the water is lost by transpiration of water directly from the plant tissue, rather than by evaporation of water directly from the soil surface. The term consumptive use is synonymous with evapotranspiration.
Studies In Iron Chlorosis Of Leaves, Narayan Gunderao Perur
Studies In Iron Chlorosis Of Leaves, Narayan Gunderao Perur
All Graduate Theses and Dissertations, Spring 1920 to Summer 2023
Normal healthy growth and development of plants is controlled by certain factors known as factors of plant growth. They are soil, climate, and plant inheritance. The soil contains many nutrient elements needed by plants both in macro and micro quantities. Iron is one of the essential elements required by plants in small amounts.
When plants are starving for any of the essential nutrients, characteristic symptoms usually appear as certain abnormalities, discoloration and deformation of leaves, fruits, and other parts. The deficiency symptoms, though not easily recognizable in some cases at the beginning, are quite apparent in advanced stages of plant …
The Temperature Dependence Of The Drying Of Horizontal Soil Columns, Craig Loren Wiegand
The Temperature Dependence Of The Drying Of Horizontal Soil Columns, Craig Loren Wiegand
All Graduate Theses and Dissertations, Spring 1920 to Summer 2023
A consideration of the physical principles involved in evaporative drying of soil indicates that several physical processes might possibly limit the rate of evaporation. These include the rate of supply of energy to the site of evaporation, the rate of transfer of water vapor through the sample or through the atmosphere above the sample, and the rate of unsaturated flow of water to the soil surface or to the site of evaporation.
Hydrogen Bonding Between The Carbonyl Group And Wyoming Bentonite, Robert A. Kohl
Hydrogen Bonding Between The Carbonyl Group And Wyoming Bentonite, Robert A. Kohl
All Graduate Theses and Dissertations, Spring 1920 to Summer 2023
The vibrational frequencies of atom to atom bonds within a molecule are a function of the bond energies. Each bond has its characteristic frequency, and most of these frequencies can be detected with the infrared spectrophotometer. When one compound reacts with another or is adsorbed on the surface of a solid, detectable frequency changes or shifts may occur. These changes or shifts yield valuable information about the bonds which are formed or broken.
The Effect Of The Method Of Irrigation And Fertilizer Application On The Movement Of Nitrates In The Soil, Lavoir A. Banks
The Effect Of The Method Of Irrigation And Fertilizer Application On The Movement Of Nitrates In The Soil, Lavoir A. Banks
All Graduate Theses and Dissertations, Spring 1920 to Summer 2023
It is generally recognized that one of the most important factors limiting crop production is soil nitrogen. Farmers today are using more nitrogen fertilizers than ever before. All indications show that this usage will probably continue to increase. With the expanded use of nitrogen, it has become desirable to increase the efficiency from nitrogen fertilizers. One factor which will affect the efficiency is the position of the nitrogen in the soil in relation to the plant roots.
Water Levels In Observation Wells In Nebraska, 1959, C. F. Keech
Water Levels In Observation Wells In Nebraska, 1959, C. F. Keech
Conservation and Survey Division
No abstract provided.
A Useful Farm-Made Roller, V E. Western
A Useful Farm-Made Roller, V E. Western
Journal of the Department of Agriculture, Western Australia, Series 4
A very serviceable compacting roller can be constructed at little expense by using discarded truck tyres.
The roller described here has an overall width of 5 ft. 3 in. and carries seven 9.00 x 24 semi-trailer tyres which had been discarded when the treads were worn smooth.
Reclaiming Salt Land With Bluebush, Stanley Thomas Smith
Reclaiming Salt Land With Bluebush, Stanley Thomas Smith
Journal of the Department of Agriculture, Western Australia, Series 4
IN Western Australia there are approximately a million acres of salt land, some of which is a serious economic problem to individual farmers, unfortunate enough to have the major portion of their properties affected by salt encroachment.
Kimberley Research Station : A Progress Report, Department Of Agriculture, Western Australia
Kimberley Research Station : A Progress Report, Department Of Agriculture, Western Australia
Journal of the Department of Agriculture, Western Australia, Series 4
INTEREST in the agricultural potential of the Kimberley region in Western Australia dates from its early exploration and settlement in the last century.
Several farming development schemes were considered for the area, but were never implemented.
This could be mainly attributable to lack of knowledge of agricultural potentialities, limitations of the local environment and ways of exploiting the local environment.
Up to the present the economy of the region is almost entirely based upon the extensive production of beef and to a lesser extent, wool.
Commercial Vegetable Growing In The Perth Metropolitan Region, L T. Jones
Commercial Vegetable Growing In The Perth Metropolitan Region, L T. Jones
Journal of the Department of Agriculture, Western Australia, Series 4
MARKET gardening with sprinkler irrigation on deep sandy soils around Perth is really a commercial application of hydroponics or sand culture principles.
Provision of a continuous and adequate supply of nitrogen is the major problem. Peat swamps scattered among the sandy areas have higher natural fertility. However, their common problems are drainage, acidity ("sourness"), salt and various special soil deficiencies. Over-liming of acid swamps can cause new problems.
The Development Of Western Australian Sand Plain Soils For Agriculture, Richard Philip Roberts, F. L. Shier
The Development Of Western Australian Sand Plain Soils For Agriculture, Richard Philip Roberts, F. L. Shier
Journal of the Department of Agriculture, Western Australia, Series 4
IN a recently published economic survey of the Australian wheat growing industry, it was reported that nearly two-thirds of the farms surveyed in Western Australia were located on lateritic "sand plain."
As a random selection was made of the eighty farms that were visited it is reasonable to conclude that a similar proportion of all the State's wheat producing farms are on that type of country.
This constitutes a remarkable change from the earlier days of wheat belt settlement when the sand plain soils were regarded as virtually useless and by-passed for development.
It is the purpose of this article …
Soil Conservation In The Kimberley Area Of Western Australia, K Fitzgerald
Soil Conservation In The Kimberley Area Of Western Australia, K Fitzgerald
Journal of the Department of Agriculture, Western Australia, Series 4
OFFICERS of the Soil Conservation Branch of the West Australian Department of Agriculture, have not been engaged in soil conservation work in the Kimberleys prior to this year, not because a serious erosion problem did not exist, but rather because with limited trained staff available they were too fully occupied elsewhere.
The recent arrival of a senior Soil Conservation Officer in the area to assist and plan an approach to the problem of soil erosion in the Ord River catchment area is therefore very welcome.