The Effect of Adding Humic Acid and Boron on Some Soil Characteristics and The Growth and Yield of Beans

Abstract

The study was carried out from October 1, 2023 to April 1, 2024 at one of the farmlands affiliated with the Institute of Technology/Al-Musayyab Department of Soil and Water Technology, Al-Fur at Al-Awsat University of Science and Technology. It is characterized by mixed soils to test The effect of spraying plants with boron, which comes from potassium chloride and humic acid fertilizers. Among some indicators of pulse growth and yield, Seeds of Spanish broad bean varieties are used in agriculture and three treatments are used: spraying with humic acid at a concentration of (0, 1.5, 3) g/L-1, and boron from calcium chloride (3, 0% ), using three treatments (0, 2, 4). ml/L-1. A randomized complete block design (RCBD) was used to study the impact of the interaction between humic acid and boron on certain soil properties and the growth and yield of beans. It was repeated three times. The results were measured according to the least significant difference and were measured at 5%. On a probability level .The results showed that some physical and chemical soil properties (such as soil electrical conductivity, soil bulk density and degree of soil interaction) and vegetative growth indicators (such as pod number) significantly increased after spraying humic acid on the plants. ).  The addition of boron through spraying also resulted in a significant increase in the above (some indicators of plant growth and some physicochemical properties of the soil). When humic acid and boron were added together with the same characteristics mentioned above, the results gave the highest average values.