Utilization of the knowledge-intensive technologies chlorophyll-meter (SPAD-meter) and leaf color chart (LCC) by low-land rice farmer cooperators in three communities in Central Luzon, 1997
Otai, O. M, 'Utilization of the knowledge-intensive technologies chlorophyll-meter (SPAD-meter) and leaf color chart (LCC) by low-land rice farmer cooperators in three communities in Central Luzon, 1997', 1997