TY  - BOOK
AU  - Robinson, J. B. D.
TI  - Soil Nitrogen Index And Its Calibration With Crop Performance to improve Fertilizer Efficiency on Arable Soils
SN  - 0851983405
U1  - 631.4 
PY  - 1975///
CY  - Bureaux
PB  - Commonwealth
KW  - Agriculture and related technologies
KW  - Technology (Applied sciences)
KW  - Fertilizer efficiency
KW  - Nitrogen
KW  - Soils
ER  -