| 000 | 00338nam a2200097Ia 4500 | ||
|---|---|---|---|
| 008 | 140318s9999 xx 000 0 und d | ||
| 100 | _aSchmitz, G.W. and Pratt, P.F. | ||
| 245 | _aExchangeable and non-exchangeable potassium as indexes to yield increases and potassium by corn in green house | ||
| 650 | _aCorn. Soil Nutrition. | ||
| 942 | _cRP | ||
| 999 |
_c98254 _d98254 |
||