Pengaruh Sifat Tanah Terhadap Kejadian dan Keparahan Penyakit pada Kelapa Sawit Main Nursery

Abstract

Soil properties, both physical, chemical and biological, have a direct impact on the growth and health of oil palm seedlings. Fertile soil means the incidence and severity of plant diseases can be minimized. For this reason, research is needed to examine the influence of soil properties on the incidence and severity of disease in oil palm seedlings in the main nursery phase. The aim is to determine soil properties, both physical and chemical, that influence the incidence and severity of main nursery oil palm diseases. Implementation stages include taking soil samples and observing sick plants. The soil sample taken was the rhizosphere of main nursery oil palm. Data analysis uses Microsoft Excel to describe disease incidence and soil physical and chemical properties. The research results showed that in main nursery-B (MN-B) the incidence of disease attacks had a higher percentage compared to main nursery-A (MN-A). Physical and chemical properties of soil (N-available, P-available, C-organic, CEC) influence the incidence of disease attacks. The high content of available N and available P increases attacks by plant pests, while the high content of organic C and CEC can suppress pest attacks.