000 00501 a2200193 4500
041 _aEn
080 _b333
082 _aAT143
100 _aZakeeya S. M. S.
245 _aSpatial variation of some soil fertility parameters in rice (oryza sativa) grown soils of karapola irrgation scheme
260 _c2008
_g2008
300 _bill,map
_c30 cm.
_aviii,55 p
650 _aGPS
650 _aSPATIAL VARIABILITY
650 _aSOIL FERTILITY
650 _aRICE
650 _aGISMAPS
942 _cT
999 _c10428
_d11869