Titlebook: Animal Manure on Grassland and Fodder Crops.Fertilizer or Waste?; Proceedings of an In H. G. Meer,R. J. Unwin,G. C. Ennik Conference procee

exostosis

https://doi.org/10.1007/978-94-009-4804-4oils and their residual effect has been studied..Yield levels were mainly determined by temperature and water supply, and were favoured by large amounts of cattle slurry up to 200–300 t ha.yr. or 200 t ha.yr. of farmyard manure. Even with annual manure rates of 100–200 t ha., the crops responded pos

NUDGE

混合

History of Concepts for Ecology not yet significantly adversely affected. Nearly all the nitrate leached from the root zone is denitrified in the upper zone of the groundwater. At several places the phosphate sorption capacity of the upper layer of the soil profile has already been filled up. The vigour of forests is remarkably l

machination

Why Write a Handbook of Ecological Concepts?ions and losses either from excreta returned directly to grazed pastures or from slurry applied to grassland is reviewed. The three major pathways of N loss after return of excreta, namely gaseous emission . through ammonia (NH.) volatilization and denitrification), surface run-off and leaching are

阻碍

陶器

amnesia

OPINE

Why Write a Handbook of Ecological Concepts?on of large amounts of slurry based on a policy of disposal or on nitrogen (N) use by crops will lead to the accumulation of phosphorus (P) in the surface soil and may result in the application of excessive amounts of potassium (K) with deleterious effects on crop quality and animal health. The crop

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