Effect of Potassium Spray and the Addition of Organic Matter on Some Physical Properties of Soil and Yield of Yellow Maize (Glory) Variety
DOI:
https://doi.org/10.54536/ajaset.v9i1.3636Keywords:
Glorious Variety, Potassium, Yellow Corn, ZincAbstract
Field experiment was conducted for the autumn season 2022 in Khamisiyah area/Babil governorate in silty loam soil to study the effect of foliar fertilization for four levels of potassium (0, 1.5, 3.0, 4.5 g potassium per liter-1) and its source is potassium sulfate and four levels of zinc are ( 0, 25, 50, 75 mg zinc L-1) and its source is zinc sulfate water and their interaction in some physical properties of soil and indicators of yield and quality of yellow maize plant for Glory variety. A fully randomized block design was used for three replicates, and means were compared using a least significant difference at the 5% probability level. The observations are as follows:
Foliar potassium application (4.5 gm K/L-1) significantly increased the average weighted diameter and hydraulic conductivity of the soil after planting, the number of grains per panicle, the weight of 500 grains, the total grain yield, and the content of protein and oil in grains, significantly Increase 26.9, 26.0, 37.2, 16.4, 20.5, 18.2, 96.9, 16.7 and 35.7% respectively, However, soil bulk density values were reduced by 5.8% compared to the control treatment (sprayed with water only) which gave the lowest average value. Foliar application of zinc (75 mg zinc L-1) significantly improved the mean values of the above traits by 17.4, 13.3, 29.2, 16.6, 19.7, 10.6, 64.1, 41.7 and 42.8%. The bulk density was reduced by 5.8% compared to the control treatment which showed the lowest mean value, the results also showed that the combination (4.5 gm Potassium L-1 + 75 mg Zinc L-1) was increasing the growth index and gave the highest mean value, They were 0.94 mm, 14.7 cm/min, 1.7 cobs, 19.3 rows, 425.8 grains, 138.9 g and 13.4 mcg.h-1, 10.92% and 7.52%, respectively, while the bulk density was 1.36 μgm3, respectively.
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