Irrigated crops are produced on 645,000 ha in east-central Washington and northcentral Oregon (1). Approximately 70% of this cropland is irrigated with water diverted from rivers, while water for the remaining hectares is pumped from deep wells. Much of the irrigated cropland is found in areas of less than 200 mm annual precipitation, where dryland farming is difficult or impossible. Wind erosi...

in order to evaluate cardinal temperatures and optimum thermal range of germination of three medicinal plants including ajowan, fennel and dill an experiment was conducted in a completely randomized design with three replications. temperatures considered for this study were: 5, 10, 15, 20, 25, 30 and 35 ?c. results indicated that temperature affected germination rate and percentage of these cro...

The stability of the soil aggregates is an important quality indicator, as it affects soil’s overall functionality. As are highly affected by agricultural practices, essential to know how crops interact with aggregation process. Therefore, for obtaining more knowledge, this research was conducted in Estonia organic crop rotation field experiment from 2012/2013 through 2015/2016 study effects (p...

Greater precipitation use efficiency (PUE) and economic returns by increasing cropping frequency through the addition of summer crops to the dryland winter wheat-fallow (WF) cropping system have been reported in the semiarid Central Great Plains of USA. However, due to the highly variable nature of precipitation and uncertain water availability, selection of a crop with assured positive net ret...

Drosophila suzukii Matsumura, often called spotted wing drosophila, is an exotic vinegar fly that is native to Southeast Asia and was first detected in the continental United States in 2008. Previous modeling studies have suggested that D. suzukii might not survive in portions of the northern United States or southern Canada due to the effects of cold. As a result, we measured two aspects of in...

Winter chilling is of central importance in the phenology of temperate annual and perennial plants. Chilling accelerates flowering through the process of vernalization and breaks both bud and seed dormancy, permitting the onset of growth in the spring. The quantitative effects of chilling in floral promotion in winter annual Arabidopsis accessions are well-documented, but very little is known a...

Introduction and cultivation of new crops in a given environment require management practices and trait selection that enable the crop species to perform to its potential. Canola is an important oilseed crop (Downey 1990, Zhang et al. 2003) and its cultivation is expanding, particularly in the western world (FAO 2006), because of its importance as both an oilseed and a bio-diesel crop. Winter-g...

There is an increasing interest in the establishment of plantations in the Southeast region with the objective of producing biomass for energy and fuel. Establishment of these plantations will require the development of a feasible way to harvest them. These types of plantations are called Short Rotation Woody Crops (SRWC). Popular SRWC species are Eucalypt (Eucalyptus spp.), Cottonwood (Populus...

The production costs of agricultural enterprises 43 rural areas in the South Russia, which systematically cultivate same types crops: winter and spring grains, pulse crops, maize, sunflower, potatoes open field vegetables, has been investigated. Mathematical tools for cost forecasting long-term planning most competitive species profitable sales on world (grain) domestic product markets are shown.

the perceived success of AI in business applications. Great early success allowed AAAI to weather the ”AI winter“ to enjoy the current “thaw.” Other challenges to AAAI have resulted from its success in spinning out international conferences, thereby effectively removing several key AI areas from the AAAI National Conference. AAAI leadership continues to look for ways to deal with these challenges.