This paper presents field-based classifications performed using the multi-resolution images of SPOT4 XS, SPOT5 XS, IKONOS XS, QuickBird XS, and QuickBird Pansharpaned (PS) covering an agricultural area located in Karacabey, Turkey. The objective was to assess the classification accuracies of different spatial resolution images in an agricultural land using the field-based classification techniq...

The accuracies of rice classifications determined from density slices of broadband moisture indices were compared to results from a standard supervised technique using six reflective Enhanced Thematic Mapper plus (ETM+) bands. Index-based methods resulted in higher accuracies early in the growing season when background moisture differences were at a maximum. Analysis of depth of ETM+ band 5 res...

India is a signatory to the Cartagena Protocol 2 – this international Convention, though primarily focusing on transboundary movement of living modified organisms [LMOs, also popularly referred to as GMOs – Genetically Modified Organisms including GM crops], emphasizes a precautionary approach towards LMOs. The Convention is about ‘ensuring adequate levels of protection in the field, of the saf...

Cornell University evaluates 95-115 day corn silage hybrids at two locations in central/western NY and 75100 day corn silage hybrids at two locations in Northern New York. We arrange the hybrids in the fi eld into 5day relative maturity (RM) groups (i.e. 95-100, 101105 day hybrids, etc.) and harvest one or more RM groups at a particular site when the hybrids are in the 60-70% moisture range. We...

Insect-pathogenic fungi are important natural enemies of insect pests but their dynamics in the soils of different agroecosystems are incompletely understood. In the present study, the seasonal occurrence and species diversity of insect-associated fungi in soil were investigated by baiting soil samples with larvae of Galleria mellonella. The survey included insect-pathogenic fungi, opportunisti...

Nitrogen is essential for the proper growth and development of all fi eld crops including corn. Without suffi cient N, both corn yields and silage quality can be impacted. Too much N can be a waste of money and leads to environmental losses. Producers and consultants asked if additional N was needed for corn following legume and/or grass sods in the rotation (fi rst year corn) and if the answer...

Changes in agricultural land use as a consequence of an increased demand of energy crops have resulted in an increase of maize cropped area in many regions of Germany. The focus on maize as main biogas substrate, has led in some cases to negative ecological and environmental impacts, such as a loss of agro biodiversity reflected in a loss of field flora and fauna biodiversity. The present paper...

"Field-evolved resistance" is defined as a "genetically based decrease in susceptibility of a population to a toxin caused by exposure to the toxin in the field." The key component of "field-evolved" resistance is that it does confer decreased susceptibility to an insecticide in the field. Another key component is that the decrease in susceptibility to the insecticide is because of previous exp...