Yield of Wheat (Triticum aestivum, L) Dewata 162 Variety at Various Planting Distances and ZnSO 4 Fertilizer Doses

Abstract

Research on the yield of wheat (Triticum aestivum, L.) Dewata 162 variety at various planting distances and doses of ZnSO4 fertilizer was carried out from November 23, 2021 to February 24, 2022. The research was conducted in Wirosari village, Patean District, Kendal Regency with an altitude of 530 m above sea level and the type of soil is latosol. The purpose of this study was to determine the effect of planting distances and dose of ZnSO₄ fertilizer on wheat crop yields. The study used a factorial design (4 x 3) which was arranged in a Completely Randomized Block Design (RCBF) with two factors and was repeated three times as blocks. The first factor, the planting distances is 10 cm x 10 cm, 15 cm x 10 cm, 20 cm x 10 cm, and 25 cm x 10 cm. The second factor is the dose of ZnSO4 fertilizer consisting of doses of  0 kg/ha, 25 kg/ha and 50 kg/ha. The data were analyzed by analysis of variance  and mean were separated by LSD and the Orthogonal polynomial test for the second factor. The results showed that the difference in spacing did not affect panicle length, number of seeds per panicle, number of filled seeds per panicle, dry seed weight per clump, dry seed weight per m², and 1,000 dry seed weight, but the spacing was 25 cm x 10 cm gave the highest yield on the number of tillers and the number of panicles per clump. The application of ZnSO₄ fertilizer had no effect on the number of tillers, panicle length, number of panicles per clump, number of seeds per panicle, number of filled seeds per panicle, dry seed weight per clump, dry seed weight per m², and 1000 dry seed weight. There was no interaction between plant spacing treatment and ZnSO₄ fertilizer dose on all parameters.

 Keywords:   dose, planting distances, varieties of Dewata 162, wheat, ZnSO₄ fertilizer.