DAMPAK PENERAPAN JARAK TANAM TERHADAP PRODUKTIVITAS DAN PENDAPATAN USAHATANI JAGUNG HIBRIDA DI LAHAN SAWAH TADAH HUJAN

Abstract

Corn (Zea Mays L) has multipurpose functions, as food, feed, industrial raw materials, and source of
farmers' income. Rainfed rice fields are one of the potentials which have not been optimally utilized for
agriculture, especially corn. Planting distance will affect productivity in two ways, 1) the use of planting
distance that is too tight, plants will experience competition with other plants nearby and 2) planting
distance that is too wide may reduce yield per unit area. This study aims to determine the
performance of productivity, income and feasibility and aslo to determine the break-even point of
production and prices. The study was conducted in Boloh Village, Toroh District, Grobogan Regency
on MT-3 in 2016 covering an area of ± 5 ha. The study was set out with 3 treatment distance
planting, 75 x 20 cm (1 seed per hole), 75 x 40 cm (2 seeds per hole) and 50 x 50 cm (2 seeds per
hole). The results showed that the 70 x 40 cm spacing treatment gave the highest productivity and
income. Hybrid maize farming with distance planting of 70 x 40 cm, both technically and financially, is
the most feasible to be developed in rainfed rice fields.