Influence of varieties, plant spacing and manure fertilizer to maize productivity in dry land

Abstract

An assessment was carried out in the dry land of Cerme village Ngimbang district Lamongan Regency East java Province (85 m asl) during the 1st dry season, from February to June 2019. The experiment was arranged in a split-split plots design with three replications. As the main plot was the hybrid varieties HJ 21, Bima 19, and NK 212; as a subplot was the plant spacing i.e., double row "jajar legowo"90 x 50 x 20 cm and farmers habitual 60 cm x 30 cm, and the sub-sub plot was the application of organic manure fertilizer i.e., 2 tons/ha and without organic manure fertilizer. The results showed that there was no interaction between the three treatment factors tested. Then, each treatment factor has a free effect on the variables observed. The result showed that the treatment of NK 212 varieties, double row plant space, and organic fertilizer were affect significantly some variable of the plant growth and yields. The highest yield was obtained in the treatment of NK 212 varieties of 8.51 tons ha-1. Double row plant spacing treatment was increasing the yield up to 16.26%, and organic fertilizer treatment increased the yield by only 5.7 %.