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Full-Text Articles in Life Sciences
Crop Responses To Amisorb In The North Central Region, Sylvie Brouder, Robert Dowdy, Dave Franzen, Gary Hergert, Robert Hoeft, Maurice Horton, Keith Kelling, David Mengel, George Rehm, John Sawyer, Peter Scharf, Darryl Warnacke, David Whitney
Crop Responses To Amisorb In The North Central Region, Sylvie Brouder, Robert Dowdy, Dave Franzen, Gary Hergert, Robert Hoeft, Maurice Horton, Keith Kelling, David Mengel, George Rehm, John Sawyer, Peter Scharf, Darryl Warnacke, David Whitney
John E. Sawyer
Originally used to prevent scale in boilers, carpramid or thermal polyaspartate (copoly[(3-carboxypropionamide)( 2-carboxylmethyl) acetamide)] was brought to agriculture under the trade names AmiSorb and Magnet. It claimed to increase nutrient uptake through artificially increasing the volume of soil occupied by roots through increased root branching and root hair development. Under controlled hydroponic or greenhouse conditions, the use of carpramid increased nutrient uptake, some yield determining factors such as wheat tillering and in some cases, crop yield. Extensive field testing from 1996 to 1998 under various nutrient regimes, placements, forms, and timings resulted in very inconsistent performance. Averaged across all experiments …
Farm Energy: Energy Consumption For Row Crop Production, H. Mark Hanna, John E. Sawyer, Dana Petersen
Farm Energy: Energy Consumption For Row Crop Production, H. Mark Hanna, John E. Sawyer, Dana Petersen
John E. Sawyer
This publication provides an overview of farm energy use related to corn and soybean production in Iowa. Three areas of row crop production--field operations, fertilizer and pesticide application, and artificial drying--are used to illustrate on-farm energy consumption.
Farm Energy: Energy Conservation In Corn Nitrogen Fertilization, John E. Sawyer, H. Mark Hanna, Dana Petersen
Farm Energy: Energy Conservation In Corn Nitrogen Fertilization, John E. Sawyer, H. Mark Hanna, Dana Petersen
John E. Sawyer
Optimum corn yields require nitrogen fertilization in most crop rotations, but the energy consumed during the production of nitrogen fertilizer is considerable. Learn more about maximizing economic, environmental, and energy returns for nitrogen and other fertilizers.
Using Manure Nutrients For Crop Production, John E. Sawyer, Antonio P. Mallarino
Using Manure Nutrients For Crop Production, John E. Sawyer, Antonio P. Mallarino
John E. Sawyer
Manure has characteristics that make nutrient management different and sometimes more complicated than fertilizer. Find out about manure nutrient availability for crops, manure nutrient supply, manure nutrient application recommendations, adjusting for manure nitrogen volatilization, and more.
Nutrient Deficiencies And Application Injuries In Field Crops, John E. Sawyer
Nutrient Deficiencies And Application Injuries In Field Crops, John E. Sawyer
John E. Sawyer
Color photos and descriptions aid in identifying nutrient deficiencies and injury due to fertilizer in order to accurately diagnose symptoms for corn, soybeans, alfalfa, and winter wheat.
Sensing Nitrogen Stress In Corn, John E. Sawyer
Sensing Nitrogen Stress In Corn, John E. Sawyer
John E. Sawyer
Water quality concerns and high N fertilizer prices have made more precise nitrogen management strategies important to improve efficiency and profitability. Get the details here.
Interpretation Of Soil Test Results, Antonio P. Mallarino, John E. Sawyer
Interpretation Of Soil Test Results, Antonio P. Mallarino, John E. Sawyer
John E. Sawyer
A detailed explanation on how to interpret soil test results to assist with soil nutrient recommendations.
Nitrogen Use In Iowa Corn Production, John E. Sawyer
Nitrogen Use In Iowa Corn Production, John E. Sawyer
John E. Sawyer
Nitrogen is essential for growth and reproduction of crops and is involved in many important plant biochemical processes. Nitrogen management is critical for optimal yields for corn production systems. This publication discusses long-term research done in Iowa and shows corn yields average about 60 bu/acre for continuous corn and 115 bu/acre for corn following soybean when corn is not fertilized. However, corn fertilized with N will easily yield 200 bu/acre or more. This means soil management and nitrogen fertilization practices, such as using economical optimum N rates, should be used to help optimize crop yields, use N efficiently, and enhance …
A General Guide For Crop Nutrient And Limestone Recommendations In Iowa, Antonio P. Mallarino, John E. Sawyer, Stephen K. Barnhart
A General Guide For Crop Nutrient And Limestone Recommendations In Iowa, Antonio P. Mallarino, John E. Sawyer, Stephen K. Barnhart
John E. Sawyer
Find phosphorus and potassium recommendations, micronutrient recommendations, and limestone recommendations for soils.
Also find soil test procedures and categories.
Ag Decision Maker: Combine Ownership Or Custom Hire, William M. Edwards, H. Mark Hanna
Ag Decision Maker: Combine Ownership Or Custom Hire, William M. Edwards, H. Mark Hanna
William Edwards
Includes advantages and disadvantages of custom hiring and information on estimating costs; includes worksheets.
Ag Decision Maker: Combine Ownership Or Custom Hire, William M. Edwards, H. Mark Hanna
Ag Decision Maker: Combine Ownership Or Custom Hire, William M. Edwards, H. Mark Hanna
William Edwards
Includes advantages and disadvantages of custom hiring and information on estimating costs; includes worksheets.
Ag Decision Maker: Combine Ownership Or Custom Hire, William M. Edwards, H. Mark Hanna
Ag Decision Maker: Combine Ownership Or Custom Hire, William M. Edwards, H. Mark Hanna
William Edwards
Includes advantages and disadvantages of custom hiring and information on estimating costs; includes worksheets.
Ag Decision Maker: Combine Ownership Or Custom Hire, William M. Edwards, H. Mark Hanna
Ag Decision Maker: Combine Ownership Or Custom Hire, William M. Edwards, H. Mark Hanna
William Edwards
Includes advantages and disadvantages of custom hiring and information on estimating costs; includes worksheets.
Nf91-50 Bee Pollination Of Cucurbit Crops, Laurie Hodges, Fred Baxendale
Nf91-50 Bee Pollination Of Cucurbit Crops, Laurie Hodges, Fred Baxendale
Laurie Hodges
This NebFact discusses bee pollination of cucurbit crops.
Nf92-107 Resource List For Marketing Alternative Crops, Laurie Hodges
Nf92-107 Resource List For Marketing Alternative Crops, Laurie Hodges
Laurie Hodges
This NebFact is a resource list of companies, organizations, and government offices who offer and supply information for helping the small farmer/gardener market their alternative crops.
Nf92-108 Sources Of Information — Organic Or Sustainable Vegetable Production, Laurie Hodges
Nf92-108 Sources Of Information — Organic Or Sustainable Vegetable Production, Laurie Hodges
Laurie Hodges
This NebFact is a list of companies, organizations and government offices that supply information for the gardener and small farmer who are looking at instituting organic or sustainable vegetable production.
Nf99-404 Income Generation Using Alternative Crops, Roger D. Uhlinger, Laurie Hodges
Nf99-404 Income Generation Using Alternative Crops, Roger D. Uhlinger, Laurie Hodges
Laurie Hodges
This NebFact examines considerations for utilizing alternative crops for income generation.
Ec02-1763 How Windbreaks Work, James R. Brandle, Laurie Hodges, Xinhua Zhou
Ec02-1763 How Windbreaks Work, James R. Brandle, Laurie Hodges, Xinhua Zhou
Laurie Hodges
Windbreaks are barriers used to reduce and redirect wind. They usually consist of trees and shrubs but also may be perennial or annual crops and grasses, fences, or other materials. The reduction in wind speed behind a windbreak modifies the environmental conditions or microclimate in this sheltered zone.
Nf92-104 Post-Harvest Handling Of Commercial Vegetable Crops -- Resource List, Laurie Hodges
Nf92-104 Post-Harvest Handling Of Commercial Vegetable Crops -- Resource List, Laurie Hodges
Laurie Hodges
This NebFact gives a resource list for post-harvest handling of commercial vegetable crops.
G92-1084 Culture Of Cole Crops, Laurie Hodges, R.E. Neild
G92-1084 Culture Of Cole Crops, Laurie Hodges, R.E. Neild
Laurie Hodges
How to grow successfully broccoli, brussels sprouts, cabbage, cauliflower, and kohlrabi. Cole crops, which include broccoli, brussels sprouts, cabbage, cauliflower, and kohlrabi, can be successfully grown on most soils if drainage is good and the crop is supplied with adequate water and nutrients, particularly nitrogen. Light-textured soils usually produce earlier crops but heavier soils hold more moisture and tend to produce crops that hold quality longer at maturity. Cole crops have shallow root systems. Inadequate moisture may cause small cauliflower heads to form prematurely. Rainfall or irrigation following a prolonged dry spell may cause splitting of cabbage and kohlrabi. Supplemental …
Ec96-142 Crp Land Use Guide (Conservation Reserve Program), Douglas Anderson
Ec96-142 Crp Land Use Guide (Conservation Reserve Program), Douglas Anderson
Douglas Anderson
Conservation Reserve Program (CRP) contracts held by Nebraska producers will begin to expire in 1996. Thousands of acres of grassland will be eligible for haying, grazing or to be returned to other uses. Land-use decisions made by owners and operators will impact the economic viability and long-term productivity of individual farms, as well as the region as a whole. The intent of the CRP Land Use Guide is not to provide all the asnwers - in many instances we don't even know the questions. It is however, intended to provide an outline of the key issues you will face when …