422-2 | Paes

philippine agricultural engineering standard paes 422-2:2012

| Failure (Exceeds limit) | Likely Cause | Fix | | :--- | :--- | :--- | | High missing hills (>10%) | Bent pickup fingers or low tray pressure | Realign fingers; increase tray compression spring force | | High damaged seedlings (>5%) | High planting speed or dull cutting blade | Reduce speed; sharpen or replace blade | | High floating seedlings (>3%) | Water too deep or improper depth setting | Drain field to 30mm; increase planting depth | | Low field efficiency (<65%) | Frequent clogging or small test plot | Remove weeds from float case; test on larger area | paes 422-2