TY  - BOOK
AU  - Khalil,Kamal Mohamed EL-Sayid
TI  - Pyrophosphate and polyphosphates as sources of phosphorus for plant
PY  - 1980///
KW  - Soils
KW  - Phosphorus content
KW  - Leaves
KW  - Nutrition
N1  - Thesis (M.S.)--Ain Shams University, 1980; Includes bibliographical references (leaves [41]-55); Microfiche; Cairo, Egypt; ASUNET; 2 microfiches : negative
ER  -