TY  - BOOK
AU  - GUPTA, Om Parkash
TI  - Seasonal fluctuations in certain chemical constituents of healthy and declining citrus trees
U1  - T 634.31 G96S 
PY  - 1970///
CY  - Ludhiana
PB  - P.A.U
KW  - CITRUS FRUITS
KW  - CHEMICAL
KW  - FPGR
KW  - HORTICULTURE
KW  - SEASONAL FLUCTUATIOS
N2  - Nitrogen content of leaves decreased with an increase in the severity of tree decline Trees in initial and moderate stages of decline showed higher total nitrogen in the bark just above the union. whereas the percentage of nitrogen in the bark below the u
ER  -