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D. Bussink ; L. Harper ; W. Corre | 1996Ammonia emission into the atmosphere is of concern because of its potential impact on atmospheric aerosol chemistry and fertilizer N use efficiency. The purpose of this study was to evaluate the effects of N surplus and deficit on soil-plant-atm[...]
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L. Harper ; D. Bussink ; H. Van Der Meer ; V. Corre | 1996The objectives of this research were to evaluate N cycling in a highly fertilized grassland in a humid temperate climate and to observe the effects of N surplus and deficit on NH3 absorption-desorption by the grass. Soil, plant, and weather meas[...]
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O. Denmead ; L. Harper ; J. Freney ; D. Griffith ; R. Leuning ; R. Sharpe | 1998A mass balance method is described for calculating gas production from a surface or volume source in a small test plot from measurements of differences in the horizontal fluxes of the gas across upwind and downwind boundaries. It employs a squar[...]
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