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Evaluation of Accuracy of Neural Network Method for Late Spring Frost Estimating in Pistachio Growing Areas of Kermann [PDF]

open access: yesمجله آب و خاک
IntroductionSpring frost is considered an important threat to agricultural products in high and middle latitudes. The damage caused by Late Spring Frosts (LSFs) significantly impacts vulnerable plant organs.
M. Abdollahi Fuzi   +2 more
doaj   +1 more source

On some tree species, annual sprays may control western poplar clearwing moth

open access: yesCalifornia Agriculture, 1994
The western poplar clearwing moth, a serious pest to many species of western ornamental trees, can cause limb breakage or tree death in severe cases.
Walter Bentley   +2 more
doaj   +1 more source

On the California border, exotic pests pose growing problem for California

open access: yesCalifornia Agriculture, 1992
Major pest threats are profiled, as are the CDFA's exclusion and eradication efforts.
Robert V. Dowell, Conrad J. Krass
doaj   +1 more source

Herbicide program can control kikuyugrass in cool-season turf

open access: yesCalifornia Agriculture, 1994
Kikuyu grass is an invasive perennial weed of turf grass in California. Currently, complete renovation of infested turf is the most practical means of control, but this process can cost more than $1,500 per acre and it removes the sward
David Cudney   +5 more
doaj   +1 more source

Screens deny specific pests entry to greenhouses

open access: yesCalifornia Agriculture, 1994
Screens can exclude certain pests from greenhouses and therefore reduce the need for pesticides on greenhouse crops. They can perhaps also be used to create a small production area for biological control organisms within the greenhouse.
James Bethke   +2 more
doaj   +1 more source

On-farm nitrogen tests improve fertilizer efficiency, protect groundwater

open access: yesCalifornia Agriculture, 1994
Nitrogen fertility of high-value vegetable crops must be carefuiiy managed to prevent contamination of groundwater while meeting agronomic goals.
Timothy Hartz   +3 more
doaj   +1 more source

Clipping chamise reduces brush fire hazard

open access: yesCalifornia Agriculture, 1999
Wildfire is a particular concern where housing and business development encroaches on highly flammable brushlands. In these areas, it may be risky to use prescribed fire to control biomass and reduce the fuel for a fire.
Theodore E. Adams, Peter Sands
doaj   +1 more source

To anticipate the future, models simulate US. pistachio prices

open access: yesCalifornia Agriculture, 1992
Models developed on U.S. pistachio production simulate grower prices under scenarios of varying import levels and carryover stocks. Grower prices have significantly varied for 13 years, partly because of changes in import levels and ...
Desmond Jolly, Kim Norris
doaj   +1 more source

Yam Production with or without Trellisingi

open access: yesDavao Research Journal, 2002
A 72 m2 area in Don Martin Marundan, Mati, Davao Oriental was planted to pre-treated and pre-sprouted yam setts arranged in a randomized complete block design to compare the tuber yield and costs when yams are grown with or without trellis.
Emma Ruth Bayogan, Necito Baldoz
doaj   +1 more source

Nitrogen isotope ratios identify nitrate contamination sources

open access: yesCalifornia Agriculture, 1996
Nitrate contamination of groundwater is becoming a widespread problem in California. To evaluate the utility of stable nitrogen isotopes for identifying sources of nitrate contamination, nitrogen isotope ratios (?15N) were measured on nitrate extracted ...
Dennis Rolston   +4 more
doaj   +1 more source

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