IMPACTS OF NUTRITION MANAGEMENT ON INSECT PESTS AND DISEASES OF RICE

Abstract

To identify the influences of nutrition management on rice insect pests and diseases, a large-scale experiment of 1 ha was carried out in Cuulong Delta Rice Research Institute (CLRRI) based on the randomized complete block design with three replications. A combination of 5 N levels and 4 P 2O5 levels were designed into different treatments. After two seasons, the results showed that nitrogen fertilizer did not affect rice growth only, but also more impacted to the outbreak of insect pests and diseases such as brown plant hopper, stem borer, leaf folder, blast, red stripped disease. Phosphorous fertilizer was less promoted to the plant growth than nitrogen, therefore, it did not affect to development of insect pests and diseases. Balanced fertilizer application can help rice plant become more resistant to pests effectively.