In recent years, the marketplace has become a favorite as trusted distribution channel to get sales profits and loyal customers, especially during COVID-19 pandemic in Indonesia March 2020, where people prefer make purchases online. Everyone needs both primary secondary needs. The study was conducted using quantitative methods with multiple linear regression, F test, coefficient determination, ...

The paper presents an assessment of the current state grain production in region, determines main sectoral strategy increasing economic efficiency production. comprehensive analysis development industry made it possible to compile a correlation and regression model yield leguminous crops, which allowed determining most significant factors – expenses fertilizers, plant protection agents maintena...