Sustainable alternatives in fertility management and pest insects in irrigated rice crop

Abstract

The goal of the study was to test alternative products in the control of insect pests in organic
rice production and nutritional status in soil and rice leaves in conventional and organic crops
in an area located in the Pampa Biome - Alegrete/RS. A previous survey of stink bug was carried
out before the application of the alternative pesticides. After the application, a new survey
was performed at 1, 3, 7 and 10 days. To compare the nutritional condition, soil and leaf samples
were taken. There was a reduction in the number of insects at a level lower than that of
damage. Better soil quality and nutrient uptake were obtained by the plant in organic compared
to conventional management. It has been shown that it is feasible to nutritionally supply plants
with organic fertilization with benefits even for the soil and it is also possible to control pest
insect infestation with products that are alternative to industrial insecticides.