Hegazi, I., Afifi, A., Rashad, G. (2007). NUTRITIONAL STATUS OF N AND P AS AFFECTED BY ADDING SOME ORGANIC MANURES AND ROCK PHOSPHATE IN BOTH SANDY AND CALCAREOUS SOILS. Journal of Soil Sciences and Agricultural Engineering, 32(6), 4977-4986. doi: 10.21608/jssae.2007.201299
I. M. A. Hegazi; A. A. Afifi; G. A. Rashad. "NUTRITIONAL STATUS OF N AND P AS AFFECTED BY ADDING SOME ORGANIC MANURES AND ROCK PHOSPHATE IN BOTH SANDY AND CALCAREOUS SOILS". Journal of Soil Sciences and Agricultural Engineering, 32, 6, 2007, 4977-4986. doi: 10.21608/jssae.2007.201299
Hegazi, I., Afifi, A., Rashad, G. (2007). 'NUTRITIONAL STATUS OF N AND P AS AFFECTED BY ADDING SOME ORGANIC MANURES AND ROCK PHOSPHATE IN BOTH SANDY AND CALCAREOUS SOILS', Journal of Soil Sciences and Agricultural Engineering, 32(6), pp. 4977-4986. doi: 10.21608/jssae.2007.201299
Hegazi, I., Afifi, A., Rashad, G. NUTRITIONAL STATUS OF N AND P AS AFFECTED BY ADDING SOME ORGANIC MANURES AND ROCK PHOSPHATE IN BOTH SANDY AND CALCAREOUS SOILS. Journal of Soil Sciences and Agricultural Engineering, 2007; 32(6): 4977-4986. doi: 10.21608/jssae.2007.201299
NUTRITIONAL STATUS OF N AND P AS AFFECTED BY ADDING SOME ORGANIC MANURES AND ROCK PHOSPHATE IN BOTH SANDY AND CALCAREOUS SOILS
Soil, Water and Environment Institute,(ARC),Giza, Egypt
Abstract
The current work aims to study the effect of some applied organic manures namely: Qattamia, Biogreen and Nile compost at rates 2 & 4 %, added alone or in combination with rock phosphate at the rate of 0.02 % to sandy and calcareous soils on nutritional status of N & P during soil incubation experiment.
The obtained results indicate that the application of organic manures either alone or in combination with rock phosphate increased the available content of N& P, with superiority of organic manures for increasing organic matter content in soils. The Nile compost at the rate of 4 % mixed with rock phosphate surpassed the other applied treatments for nutritional status of both N & P, in addition to it gave the greatest organic matter content. In all treatments the released of N and P increased in soil during the incubation period of the organic materials. It is also noticed that N and P released form the Nile compost treatment surpassed the other applied organic manures.
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