dry drainage could be considered as a natural system which evaporates water from fallow areas to control water table depth and soil salinity in neighboring cropped area. the technique requires the retirement of part of the irrigated land. one of the most notable design criteria for this system is to estimate the ratio of cropped to fallow strip width. a plexiglas physical model with the dimensi...

Scaling and cropping are very common in today’s image processing software. When an image is printed-and-scanned, the final image is generally a cropped version of the rotated, scaled original image, with additional noises. The cropped image usually does not have the same aspect ratio as the original, so the DFT coefficients of the cropped image and the original would be quite different. In this...

In this paper we propose a new method to detect cropped images by analyzing the blocking artefacts produced by a previous block based compression techniques such as JPEG and MPEG family that are the most used compression standards for still images and video sequences. It is useful for image forgery detection, in particular when an image has been cropped. The proposed solution is very fast compa...

This study used archived remote sensing images to depict the history of changes in soil salinity in the Hetao Irrigation District in Inner Mongolia, China, with the purpose of linking these changes with land and water management practices and to draw lessons for salinity control. Most data came from LANDSAT satellite images taken in 1973, 1977, 1988, 1991, 1996, 2001, and 2006. In these years s...

Proper land tenurial arrangements perceived as an important strategy for input use and agricultural production in utilization of land resource. Government of Bangladesh initiated due measures in this respect by formulating and declaring the land reform ordinance 1984.The main quest of this study is to identify the profitability of crop cultivation and factors influencing gross revenues in the v...

Crop condition assessment in the early growing stage is essential for crop monitoring and crop yield prediction. A normalized difference vegetation index (NDVI)-based method is employed to evaluate crop condition by inter-annual comparisons of both spatial variability (using NDVI images) and seasonal dynamics (based on crop condition profiles). Since this type of method will generate false info...

Aspergillus flavus, the causal agent of aflatoxin contamination, is a natural inhabitant of soils. A. flavus can be divided into two strains, S and L, with S strain isolates having a greater aflatoxin contamination potential than L strain isolates. Aflatoxin contamination can be severe in several crops in South Texas including cottonseed and corn. A. flavus communities in soils of South Texas c...

Long-term vanilla monocropping often results in the occurrence of vanilla Fusarium wilt disease, seriously affecting its production all over the world. In the present study, vanilla exhibited significantly less Fusarium wilt disease in the soil of a long-term continuously cropped black pepper orchard. The entire fungal communities of bulk and rhizosphere soils between the black pepper-vanilla s...