RICE RATOONING - IRRI books - International Rice Research Institute

RECOMMENDATIONS 27110. Consider consumer quality and seed quality of the ratoon crop whenintroducing ratooning as a cropping option.11. Study ratooning ability, not in isolation but in concert with other agronomictraits that potentially influence the ratoon crop.12. Give priority in pest management to the prevalent main crop insect pests anddiseases with particular attention to yellow dwarf disease.13. Conduct yield loss trials in ratoon crops to develop economic thresholds forinsect pests.Cultural Management1. Initiate research on rice ratooning in broadcast seeded rice; determine managementpractices for the main crop and ratoon crop.2. Study optimum plant spacing, including within-row spacing, to obtain bestresults with the ratoon crop in transplanted rice.3. Combine fertilizer management studies with water management studies in theratoon crop.4. Study integrated weed control methods for the main crop that will not adverselyaffect the ratoon crop.5. Study cultural practices that will enhance ratooning ability.6. Give sufficient attention to the efficiency and profitability of main crop diseasemanagement in relation to ratoon crop management.7. Study the potential for increasing biomass production in the ratoon crop for useas fodder.8. Study the possibility of intercropping a green manure crop with the ratoon ricecrop.Physiology1. Determine the possibility of using stem cuttings in screening entries for ratooningability.2. Compare the physiological difference between a ratooning cultivar and anonratooning cultivar through growth analysis.3. Study the effect of salinity on tiller regeneration and performance of the ratooncrop.4. Study the control of tillering in the main crop stubble.