Effect of salinity of irrigation water and spraying with selenium and humic acid on the growth of yellow corn

الملخص EN

The experiment was conducted during the spring season (2018-2019) in one of the fields belonging to the Department of Horticulture, College of Agriculture, Al-Qasim Green University.

After placing the silty clay loam soil in wooden containers (60 × 60 × 40 cm).

The split-plot design (factorial experiment) was used according to The Randomized Complete Block Design (RCBD) to study the effect of the interaction between the salinity of irrigation water, spraying with selenium, and Humic acid on the soil traits and the growth and yield of yellow corn.

The experiment included 54 treatments, which are the result of interaction between three factors: salinity of irrigation water (W) at three levels (1.

8, 3, 6 dS.

m-1), spraying with selenium at three concentrations of (0, 20 40 mg.

L-1), spraying with humic acid at two concentrations of (0, 2 mg.

L-1), with three replicates.

The increase in the salinity of irrigation water led to a significant decrease in most studied plant traits, as well as concentrations of N, P, and K elements in the leaves.

As for spraying with selenium and humic, it led to reducing the harmful effect of soil salinity.

Thus, it led to a significant increase in the traits of studied plants and concentrations of N, P, K.