TY  - BOOK
AU  - DEWAARDM, P W F
TI  - Foliar diagnosis nutrition and yield stability of black pepper(piper nigram L)in Sarawak
T2  - Communication; no 58
U1  - 633.841:631.811 
PY  - 1969///
CY  - Amsterdam
PB  - Dept of Agr Res
KW  - Foliar diagnosis
KW  - Pepper cultivation
ER  -