Studies On Some Factors Controlling Crop Production In The Newly Reclaimed Soils Adjacent To The North West Of Delta

all facts regarding the respons of crops to urea are not in controvertible, but its hydrolysis specially under different moisture conditions on calcareous soils are not aptly described dogmatically. hence the present investigation aimed to Gather more detailed information regartion urea hydrolysis and the subsequent nitrification as influenced by soil moisture content and to elucidate such influence on quantitative and qualitative leachability of urea from the soil.