The Effect of Production Input Use on Maize Productivity on Sloping Land in Ulapato B Village

Delvi Suleman

doi:10.63922/ijebir.v5i05.4795

Delvi Suleman Universitas Negeri Gorontalo

DOI: https://doi.org/10.63922/ijebir.v5i05.4795

Keywords: Corn, production inputs, productivity, sloping land, Cobb-Douglas.

Abstract

Maize is a strategic food crop that plays an important role as a source of food, feed, and industrial raw material. However, maize productivity on sloping land remains constrained by the risks of erosion, nutrient loss, and variation in production input use among farmers. This study aimed to analyze the effect of production input use on maize productivity on sloping land in Ulapato B Village. A quantitative approach using a survey method was applied to 61 maize farmers. The data were analyzed using multiple linear regression with a Cobb-Douglas production function approach. The independent variables consisted of seed, urea fertilizer, Phonska fertilizer, pesticide, HKSP/labor input, and a land-slope dummy variable, while the dependent variable was maize productivity. The results showed that the regression model had a significant simultaneous effect, with an F-statistic of 13.225 and a significance value of p < 0.001. The R Square value of 0.595 indicated that the independent variables explained 59.5% of the variation in maize productivity, while the remaining 40.5% was explained by factors outside the model. Partially, seed had a positive and significant effect on maize productivity, whereas pesticide had a negative and significant effect. Meanwhile, urea fertilizer, Phonska fertilizer, HKSP/labor input, and the land-slope dummy variable had no significant effect. These findings indicate that maize productivity on sloping land is more strongly determined by appropriate seed use and pesticide management than by fertilizer use, labor input, or differences in land-slope categories.

Keywords: maize, production inputs, productivity, sloping land, Cobb-Douglas.

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