The influence of liquid type with grain size on the soil properties in hybrid corn growth

Liming activity is an effort to raise the soil pH so that the reaction is not acidic. Most of the plants are less tolerant of acidic soil (pH <7). Because acidic soil causes solubility of Aluminum (Al), Manganese (Mn), and Iron (Fe). For example, when Al's solubility is high, Al does not only poison the plant but causes the essential element phosphorus (P) in the soil to be fixed (bound) by the Al so that it cannot be absorbed by the plant. This study aims to determine the effect of lime types with grain size on soil properties and growth and production of hybrid corn. This study uses nonfaktorial randomized block design (RBD) which consists of two treatment factors, namely the type of agricultural lime which is divided into 2 treatment levels, namely D-1: Dolomite and D-2: Calcite, each type is divided into 3 sizes namely: D1-1 is passes 60 mesh filter, D(1-2 )is passes 80 mesh filter, D-2-(1) is passes 60 mesh filter, D2-2 is passes 80 mesh filter. Thus, 4 treatments will be repeated 3 times, so that there will be 12 experimental units. Each experimental unit consists of 3 polybags, so that 36 polybags will be obtained. And in each experimental unit there were 2 sample plants. The results showed that lime treatment significantly affected plant height, wet weight of straw, ear length, ear diameter and ear weight per plant, but had no significant effect on the number of leaves, leaf area index, and flowering age.