Host Density Drives Spatial Variation in Parasitism of the Alfalfa Weevil,Hypera postica, Across Dryland and Irrigated Alfalfa Cropping Systems
نویسندگان
چکیده
منابع مشابه
Profitability of Various Corn, Soybean, Wheat, and Alfalfa Cropping Systems
Producers are frequently most interested in economic comparisons of various cropping systems. We compared continuous corn (Zea mays L.) and continuous soybean [Glycine max (L.) Merr.] with 2-, 3-, and 5-year rotations, the latter two including wheat (Triticum aestivum L.) and alfalfa (Medicago sativa L.), using either chisel plow or no-tillage practices. Crop yield and returns to land and manag...
متن کاملVegetated ditches as a management practice in irrigated alfalfa.
The organophosphate (OP) insecticides diazinon and chlorpyrifos have been frequently detected in the San Joaquin River, California, USA. Irrigation tail waters are a significant source of OP pesticides in the watershed. This study tested several management practices for reducing offsite movement of chlorpyrifos to surface water from flood irrigated alfalfa. Management practices evaluated includ...
متن کاملEffects of Mix Cropping of Alfalfa and Annual Ryegrass on Forage Production
Mix cropping of alfalfa (Medicago sativa) and annual ryegrass (Lolium rigidum) may improve forage production in the rangeland and field conditions, especially in spring after the establishment year. In this study, the effects of different sowing rates of alfalfa and annual ryegrass seeds in the replacement and additive series of mix cropping were evaluated on forage yield in first year after th...
متن کاملDevelopmental differences of local populations of alfalfa weevil (Hypera postica) (Coleoptera: Curculionidae)
* Correspondence: [email protected]
متن کاملNitrous Oxide Emissions from Irrigated Cropping Systems
We evaluated the eff ects of irrigated crop management practices on nitrous oxide (N2O) emissions from soil. Emissions were monitored from several irrigated cropping systems receiving N fertilizer rates ranging from 0 to 246 kg N ha−1 during the 2005 and 2006 growing seasons. Cropping systems included conventional-till (CT) continuous corn (Zea mays L.), no-till (NT) continuous corn, NT corn–dr...
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ژورنال
عنوان ژورنال: Environmental Entomology
سال: 2013
ISSN: 0046-225X,1938-2936
DOI: 10.1603/en12266