نتایج جستجو برای: irrigated area

تعداد نتایج: 591575  

2007
Todd D. Davis Charles E. Curtis

Table 1. 2007 Estimated Return over Variable Costs for Cotton and Peanuts. Non-Irrigated Non-Irrigated Irrigated Irrigated Cotton Peanuts Cotton Peanuts Harvest Price 1/ $0.60 $0.21 $0.60 $0.21 Yield 750 300

Journal: :Archives of environmental contamination and toxicology 2002
P Ramirez B P Rogers

Water, soil, vegetation, grasshoppers, bird eggs, and bird livers collected at a 23.5-ha (58 acres) grassland irrigated with wastewater from an in situ uranium mine (study area) and a reference site in 1998 were analyzed for selenium and other trace elements. Selenium concentrations in the uranium mine wastewater applied onto the grassland ranged from 340 to 450 microg/L. Selenium in the upper ...

2017
Marcus D. Williams Marshall Shepherd

This study maps the spatial and temporal evolution of acres irrigated in the Coastal Plain of Georgia over a 38 year period. The goal of this analysis is to create a time-series of irrigated areas in the Coastal Plain of Georgia at a sub-county level. From 1976 through 2013, Landsat images were obtained and sampled at four year intervals to manually detect Center-Pivot irrigation (CPI) systems ...

2014
Saeed Ahmadizadeh Maryam Yousefi Mehdi Saghafi

Land is becoming a scarce natural resource due to the burgeoning population growth and urbanization. Essentially, detecting changes in land surface is significant for understanding and assessing human impacts on the environment. Nowadays, land use change detection using remote sensing data provides quantitative and timely information for management and evaluation of natural resources. This stud...

2016
Upendra M. Sainju Wenju Liang

Little is known about management practices that can simultaneously improve soil and environmental quality and sustain crop yields. The effects of novel and traditional management practices that included a combination of tillage, crop rotation, and N fertilization on soil C and N, global warming potential (GWP), greenhouse gas intensity (GHGI), and malt barley (Hordeum vulgarie L.) yield and qua...

2017
Guangxin Li Chao Wang Meichen Feng Wude Yang Fangzhou Li Ruiyun Feng

The growth status of winter wheat in irrigated field and rainfed field are obviously different and the field types may have an effect on the predictive accuracy of hyperspectral model. The objectives of the present study were to understand the difference of spectral sensitive wavelengths for leaf area index (LAI) in two field types and realize its hyperspectral prediction. In study, a total of ...

2010
R. K. Misra J. H. Patel

Greywater is considered as a valuable resource with a high reuse potential for irrigation of household lawns and gardens. However, there are possibilities of surfactant and sodium accumulation in soil from reuse of greywater which may affect agricultural productivity and environmental sustainability adversely. We conducted a glasshouse experiment to examine variation in growth, water and nutrie...

Journal: :E3S web of conferences 2021

This article focuses on improving water-saving technologies for efficient use of water resources, the development and recommendation modern irrigation methods, assessing impact surface area consumption.

Journal: :Parasitologia 2021

The construction of dams along the Senegal River resulted in an increase irrigated land areas and changes epidemiology transmission water-related diseases. objective this study was to update epidemiological data on malaria Rosso, one major Mauritanian cities River. Febrile patients (n = 318) were screened for using a rapid diagnostic test (RDT) microscopic examination blood smears. Diagnosis la...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید