Soil Science Commons^™

The Soils Of The Salmon Gums District, Western Australia, George Henry Burvill

Technical Bulletins

Most of the soils are grey and brown solonized soils. The subsoils, to about 2 m, are calcareous sandy clays with limestone rubble, but there are three main surface variations: sandy surfaced, 5-30 cm deep, passing abruptly to the sandy clay subsoil with lime nodules. The Circle Valley sand and Scaddan sand are major types. Scaddan sand has a domed subsoil clay. Powdery calcareous sandy loam; and clay loam and clay with some lime in the subsoil, but less than in 1 and 2.

Safe Disposal Of Pesticide Containers And Residue, Doug Johnson, Monroe Rasnake, James Martin

Soil Science News and Views

The use of pesticides (herbicides, insecticides, fungicides, etc.) has been an important factor in improving productivity of American agriculture to the point that quantity and quality of food and fiber produced by American farmers is unequalled in the world. However, in recent years, increased concern is being expressed regarding potential harmful effects of pesticide use on the environment. Most farmers want to know how to safely handle pesticides and dispose of waste materials, and the pesticide industry is working hard to develop better systems for handling pesticides. However, poor disposal practices are still too common.

How Much Fertilizer Ls Needed For Corn?, Kenneth L. Wells, Keenan Turner

Soil Science News and Views

Corn producers are faced each year with the decision of how much money to invest in fertilizer for use on their crop. Differing philosophies used by those who make fertilizer recommendations often leave the grower bewildered as to what is best to do. It is not unusual for a producer to be told by his agricultural extension agent that he doesn't need any phosphate and potash on fields which test high in these nutrients while other sources may recommend fertilizer use. The philosophy behind the zero P-K recommendation made by extension agents in such cases is based on University of …

The Real Value Of Agricultural Limestone, Monroe Rasnake

Soil Science News and Views

There are big differences in quality of agricultural lime sold in Kentucky. According to the most recent test results, the Relative Neutralizing Value (RNV) of Kentucky aglime ranged from a low of 50 to a high of 89. Actually, some were below the RNV of 50, but these did not meet state lime law regulations and could not legally be sold as ground agricultural limestone.

Carlton Plains Soil Survey In The Shire Of Wyndham, East Kimberley, T C. Stoneman

Resource management technical reports

The Carlton Plains covers approximately 11,750 ha midway between Wyndham and Kununurra on the northern bank of the Ord River in the Shire of East Kimberley. The survey area is divided into two geomorphic units, the clay plains and the levee areas. Soils of the former generally belong to the Cununurra family of cracking clays while those of the levees are generally more variable and of medium texture.Samples of the major soils were collected for mechanical analysis and basic chemical analysis.Sodium chloride percentages and exchangeable sodium percentages are both high on the clay soils of the western plain. The suitability …

Bulletin 4358 - Western Australian Registered Field Crop Scheme Production Rules, Mark Holland, Peter Hill

Bulletins 4000 -

The Western Australian Registered Field Crop Scheme is an industry cooperative scheme entered into voluntarily by the participants. Agriculture Western Australia, through its AGWEST Plant Laboratories business unit, administers the scheme and supervises industry agreed production and marketing guidelines.

The Registered Field Crop Scheme differs from certified seed schemes by reduced direct supervision of the production by Agriculture Western Australia.

Producers agree to abide by the following rules and are responsible for the correctness of the final product to meet the quality descriptions for each seed lot as described on the appropriate seed analysis statement and in these rules.

The …

Contending With Soil Compaction, Kenneth L. Wells, Lloyd W. Murdock

Soil Science News and Views

Most compaction results from use of machinery on soil which is too wet to work well, or from overworking soil and destroying natural structure. The resultant pressure from tires and tillage tools compresses more soil into a given volume. Regardless of reason, the proportion of solid soil material relative to total volume of soil increases. In the process, natural soil aggregates are broken down and large pores become smaller, generally resulting in soil more difficult for plant roots to penetrate.

Potential Of Surface Water Contamination From Three Triazine Herbicides, William W. Witt, Kip W. Sander

KWRRI Research Reports

The movement of atrazine, cyanazine, and simazine from the site of application was monitored under conventional, reduced, and no-tillage conditions. Less water and soil was lost from the no-tillage and reduced tillage conditions. Conventional tillage conditions had about 66,000 L/ha runoff in 1986-87 and about 123,000 L/ha runoff in 1987-88. Seasonal rainfall was 885 mm in 1986-87 and 397 mm in 1987-88. The rainfall intensity was greater during the first two events in 1987 than the corresponding events in 1986. The first rainfall event in 1986 accounted for 91, 89, and 78% of the total seasonal loss of atrazine, cyanazine, …

Canola: A New Cash Crop For Kentucky, James H. Herbek, Lloyd W. Murdock, Dan Kirkland, T. Gray

Soil Science News and Views

For the past few years, Kentucky farmers have become more interested in "alternative" cash crops for their farming operations. One such crop that is starting to receive attention is Canola. Classified as an oil crop, Canola is a type of oilseed rape. Rape is a member of the mustard family and is closely related to turnip. cabbage, cauliflower, broccoli and mustards. It is a cool-season annual and an important oilseed crop in many parts of the world that is used for both human consumption and industrial purposes. Major rapeseed production areas are in Europe and Canada. The seed contains approximately …

Virtually Interactive Large-Scale Model For Arkansas: User's Guide (Vilma), Rosalinda R. A. Cantiller, Richard C. Peralta

Arkansas Water Resources Center Technical Reports

This user’s guide supports the use of VILMA (Virtually Interactive Large-scale Model for Arkansas). This document presents the basic concepts in Chapter I. Chapter II discusses the execution steps that the user follows during a VILMA session. Chapter III provides a detailed illustration of example data files. Chapter IV presents two example VILMA sessions. Finally, Chapter V elaborates on additional concepts. The Appendices consist of relevant program listings, instructions, and example files. In this user’s guide, the word "interactive" means the user enters his responses to the prompts that appear on a computer terminal while he is logged on to …

Miscellaneous Production 23/87 - Animal Production In The Spinifex And Shrubland Regions Of Western Australia, D. Burnside

Animal production and livestock published reports

The role of the Rangeland Management Branch is to promote the sustained economic use of the rangeland resource. It provides research and extension services to the pastoral industry, provides advice on the condition of the range resource to Government and provides technical information on rangelands to other rangeland managers. A principal objective to be met in fulfilling that role is the development and promotion of economically efficient place systems that conserve the rangeland resource. At the inaugural Pastoral Soil Conservation Districts Conference in Meekatharra in May 1987, pastoralist delegates emphasized the importance of achieving that objective within the various soil …

Groundwater Levels In Nebraska, 1987, Michael J. Ellis, Perry B. Wigley

Conservation and Survey Division: Faculty and Staff Publications

No abstract provided.

Timber Harvesting On Private Lands: The Washington Timber– Fish–Wildlife Agreement, John P. Mcmahon

Water Quality Control: Integrating Beneficial Use and Environmental Protection (Summer Conference, June 1-3)

24 pages.

Contains 3 pages of references.

Bay/Delta Standards Memorandum And Exhibits, Thomas J. Graff

Water Quality Control: Integrating Beneficial Use and Environmental Protection (Summer Conference, June 1-3)

47 pages.

The 1987 Nonpoint Source Pollution Amendments And State Progress Under The New Program, John H. Davidson

Water Quality Control: Integrating Beneficial Use and Environmental Protection (Summer Conference, June 1-3)

143 pages.

Contains 4 pages of references.

Antidegradation And Nonpoint Source Pollution In The West, H. Michael Anderson

Water Quality Control: Integrating Beneficial Use and Environmental Protection (Summer Conference, June 1-3)

31 pages.

Contains references.

Soil Erosion, Agrichemicals And Water Quality: A Need For A New Conservation Ethic?, Christine Olsenius

Water Quality Control: Integrating Beneficial Use and Environmental Protection (Summer Conference, June 1-3)

24 pages.

Contains references.

The San Joaquin–Sacramento Delta, David R. Beringer

Water Quality Control: Integrating Beneficial Use and Environmental Protection (Summer Conference, June 1-3)

20 pages.

Contains 2 pages of references.

Public Land Livestock Grazing, Water Quality And Riparian Ecosystems: The Evolving Legal And Technical Context, Richard H. Braun

Water Quality Control: Integrating Beneficial Use and Environmental Protection (Summer Conference, June 1-3)

8 pages.

Contains 1 page of references.

Legal Issues: San Francisco Bay, Sacramento-San Joaquin River Delta And Estuary, Stuart L. Somach

Water Quality Control: Integrating Beneficial Use and Environmental Protection (Summer Conference, June 1-3)

48 pages.

Contains footnotes.

Estimating Potential Ground And Surface Water Pollution From Land Application Of Poultry Litter - Ii, D. C. Wolf, J. T. Gilmour, P. M. Gale

Arkansas Water Resources Center Technical Reports

In Arkansas, approximately 1 Tg of poultry (Gallus gallus domesticus) manure and litter is produced annually. These waste products are commonly applied to pastures as a soil amendment or fertilizer, but excessive application rates and poor management practices could result in nutrient contamination of ground and surface water. The purpose of this study was to: (1) assess the nutrient concentrations in poultry manure and (2) evaluate the nitrogen loss from land-applied poultry litter and manure due to ammonia volatilization and denitrification. Analyses for total Kjeldahl nitrogen (TKN), inorganic nitrogen (Ni), phosphorus (P), and potassium (K) were compared in 12 wet …

Development Of A Combined Quantity And Quality Model For Optimal Management Of Unsteady Groundwater Flow Fields, R. C. Peralta, J. Solaimanian, C. L. Griffis

Arkansas Water Resources Center Technical Reports

Presented are alternative techniques for including conservative solute transport within computer models for optimizing groundwater extraction rates. Unsteady two-dimensional flow and dispersed conservative solute transport are assumed. Comparisons are made of the practicality of including modified forms of implicit and explicit finite difference solute transport equations within optimization models. These equations can be calibrated and subsequently used within a MODCON procedure. The MODCON modelling procedure consists of an integrated series of five optimization or simulation modules. The procedure is applicable for either an entire aquifer system or for a subsystem of a larger system. The first module, A, computes physically …

Qualitative And Quantitative Aquatic Algal Data Compilation To Determine Macrotrends - Iv, Richard L. Meyer

Arkansas Water Resources Center Technical Reports

A data base of the algae of Arkansas ecoregions has been estabblished by the use of a relational data base management system (dBase III plus). The system was chosen to be readily available for a variety of microcomputers using MS- and PC-DOS. The data base contains taxonomic fields from division through variety, synonymy, authors, initial description, date, and definitive descriptive source. The data are cross-referenced by ecoregion, Round's community and subcommunity designations. The data base contains greater than 1,500 taxonomic records in all divisions and classes of freshwater algae. The data are sortable by any of the included parameters. The …

Update On Ridge-Tillage In Kentucky, David C. Ditsch, Monroe Rasnake

Soil Science News and Views

Grain crop producers in Kentucky are constantly evaluating various tillage systems that will best fit their particular cropping environment. One such tillage system that has shown some promise primarily in the mid-west is a system referred to as ridge-tillage. Ridge-till is basically a system by which a grain producer plants his crop on an elevated row that is maintained each year during cultivation for week control. The same ridge is re-used year after year thereby developing a controlled traffic pattern. Since the cultivation procedure is also recommended for maintaining the ridge, many ridge-till farmers have reduced their herbicide cost by …

Estimated Use Of Water In Nebraska, 1985, Eugene K. Steele Jr.

Conservation and Survey Division: Faculty and Staff Publications

No abstract provided.

The Concept Of Prime Agricultural Land: A Western Australian Perspective, Vivian T. Read

Resource management technical reports

In the past, resource planning by Government authorities in Western Australia has been concentrated in urban areas. The rural areas were referred to as non-urban and planning outside of country townsites was confined to special rural zones. These zones were determined by the State authority (Town Planning Department) and were intended to limit the extent of farm fragmentation so as to control servicing costs and possible conflict.

The new State Planning Commission is expected soon to introduce the requirement of rural planning strategies for Local Government Areas where demand for land subdivision is high. The strategies will be based on …

A Guide To The Practical Use Of Aerial Color-Infrared Photography In Agriculture, Donald C. Rundquist, Scott A. Samson

Conservation and Survey Division: Faculty and Staff Publications

No abstract provided.

Effect Of Crop Rotation On Corn And Soybean Yields, James H. Herbek, Lloyd W. Murdock, T. Gray

Soil Science News and Views

Yield of both corn and soybeans has been shown to increase when grown in a rotation as compared to continuous cropping of either of the two crops. These yield improvements are commonly associated with fewer disease, insect and weed problems; better soil tilth; and in the case of corn, a nitrogen contribution from the preceding soybean crop. One or a combination of these factors are believed to have an effect. In the past few decades the yield benefits of rotations were often overlooked as fertilizers and pesticides were used as a substitute for crop rotation. However, research has shown that …

Carryover Effect Of New Soybean Herbicides On Corn, William W. Witt, J. A. Mills, G. L. Schmitz

Soil Science News and Views

Scepter, Canopy, Gemini, Classic, and Command are new soybean herbicides which were introduced in 1986 and are being used in Kentucky. These herbicides have gained widespread popularity because of their excellent control of cocklebur, pigweeds, morningglories, and velvetleaf. In addition, they can be applied in a variety of ways which makes them attractive to the soybean producer. However, these herbicides do have potential shortcomings in that they can persist in the soil for several months and cause injury to rotational crops such as corn or wheat. Since greater than 60% of the soybeans grown in Kentucky are rotated to corn, …

The Conservation Reserve Program (Crp) And Conservation Compliance---Two Components Of The 1985 Farm Bill, Monroe Rasnake

Soil Science News and Views

The Conservation Reserve Program: This component of the 1985 Food Security Act is still open to participation by qualified landowners. Participation in CRP provides for farmers to be paid an annual rental fee for ten years to take highly erodible land out of row crop production and maintain a conservation cover crop. The annual rental fee for CRP land already signed up in Kentucky has averaged about 58 dollars per acre.