000 | 00481nam a2200133Ia 4500 | ||
---|---|---|---|
008 | 150321s9999 xx 000 0 und d | ||
080 |
_a633.18:631.84 _bKOY-N |
||
100 | _aKoyama, Takeo ; Chammek, Chittana ; Niamsrichand, Natee | ||
245 | _aNitrogen application technology for tropical rice as determined by field experiments using n tracer technique | ||
260 |
_c1973 _aTokyo _bTropical Agriculture Research Center |
||
300 | p | _a79p. | |
650 | _aNitrogen | ||
942 |
_cBK _2udc |
||
999 |
_c13256 _d13256 |