Results 131 to 140 of about 717 (170)

Introduction to Chemigation and Fertigation

SpringerBriefs in Environmental Science, 2022
Ahmed Mohamed Taha
exaly   +2 more sources

Drip Chemigation for Insect Pest Management

2016
The application of pesticides through a drip irrigation system has been used successfully for the control of a variety of vegetable pests. Because many vegetable growers already use a drip irrigation system for water management, the injection of a pesticide can easily and inexpensively be achieved with the addition of an injection pump and the required
exaly   +2 more sources

Chemigation

2016
Peter M Waller, Muluneh Yitayew
exaly   +2 more sources

Chemigation

2012
exaly   +2 more sources

METHODOLOGY FOR RISK ANALYSIS OF CHEMIGATION

Transactions of the ASAE, 1991
ABSTRACT A method was developed for analyzing the risks of direct contamination of a water source when chemicals are applied with center pivot irrigation systems. To demonstrate the utility of the model, data were collected to estimate equipment failure parameters and the hydraulic characteristics of chemigation safety equipment.
null W. J. Weihing, null D. E. Eisenhauer   +1 more
openaire   +1 more source

Chemigation Drift and Volatilization Potential

Applied Engineering in Agriculture, 1987
A chemical tracer was used to measure drift patterns downwind from a lateral with low pressure sprinklers mounted at a 4 m height. The larger droplets from irrigation sprinklers are suggested for causing the relatively short downwind drift zone. However, volatilization of applied pesticides and subsequent drift of slow air currents can pose a serious ...
null Robert A. Kohl, null Kris D. Kohl, null Darrell W. DeBoer   +2 more
openaire   +1 more source

Chapter 19. Chemigation

2007
Chemigation is the application of water-compatible chemicals by the use of an irrigation system for fertilizing or control of crop pests, or for maintenance of a microirrigation system. Chemigation, in all its forms, is commonly used in irrigated production across the world, and its use can greatly influence the design and operation of farm irrigation ...
null Ted W. van der Gulik, null Robert G. Evans, null Dean E. Eisenhauer   +2 more
openaire   +1 more source

Performance of Chemigation Backflow Prevention Assemblies

Applied Engineering in Agriculture, 1992
When chemicals are applied using irrigation systems, there is potential for contamination of the water source by backflow if the irrigation system shuts off while unattended. This study was conducted to determine the operating and performance characteristics of new, i.e., unused, chemigation backflow prevention assemblies (CBPAs).
Munir, H. M., Eisenhauer, Dean E., Gilley, John E.   +2 more
openaire   +1 more source

Chemigation for Onion Thrips Control, 1988:

Insecticide and Acaricide Tests, 1989
Abstract Polyethylene drip irrigation tubing with 18-inch emitter spacings was buried 8 inches deep in 40-inch beds and onions direct seeded to the beds on 29 Oct 1987. Soil was a sandy clay loam and plants were spaced in 2 rows/bed, 6 inches from the center of the bed with 3 inch in-row spacing. Onion plants were surveyed weekly after 1
J. V. Edelson, Clyde Bogle
openaire   +1 more source

Solute Transport During Chemigation of a Level Basin

Transactions of the ASAE, 1992
Chemigation can be an efficient means of applying agricultural chemicals, however little research has been done to assess leaching of chemicals applied with chemigation. This study compared the leaching behavior of two conservative mobile tracers, one (Br) applied in the irrigation water and a second (o-TFMBA) sprayed onto the soil surface immediately ...
null D. B. Jaynes, null R. C. Rice, null D. J. Hunsaker   +2 more
openaire   +1 more source