Impact of Planting Distances and Humic Acid on Oat Avena sativa

Abstract

A study was conducted at the Field Crops Research Station at College of Agriculture, University of Diyala during the season (2017-2018) to evaluate the effect of planting distances and spraying of a humic acid on the growth characteristics of Oats . The factorial experiment was carried out according to the complete randomized blocks design (RCBD) with three replicates and two factors, the first include planting distances (10-20-25 cm) between the plants and the second is spraying of the humic acid at a concentration of 2 and 4 ml / L. Results revealed that the distance (25 cm) between the plants had a significant effect on the studied traits such as number of leaves/plant 37.22 , number of panicle/ plant 5.67 ,  weight of 1000 grain 25.30 g,  grains yield 16.33 g, dry plant weight 28.33 g  , number of branches / plant 6.11  ,number of grains / plant 368.6 , protein (6.77), fat (1.84) and fiber (15.06), also the findings showed that the spraying of humic acid at a concentration of 4 ml / L was superior significantly in the studied traits viz, plant height 147.33 cm, number of branches/plant 5.67, number of leaves/plant 36.44, number of panicle/plant 5.11, grains yield 14.67 g,  dry plant weight   26.11 g,  number of grains/plant 371.7, weight of 1000 grains 24.52 g,  grain yield 1924 kg / h, protein (6.67), fat (1.80), fiber (14.60).

Keywords: Oats, Humic acid, planting distances