Formation of yield of various soybean varieties in Kabul conditions

Abstract

The research examined the adaptive abilities of different soybean varieties when grown at a permanent research site at Kabul University. The soil of this study site is a saline loam mixture with a pH of 8.01 and an EC of 0.17. Mineral nutrition conditions were created by introducing complex fertilizer diammonium potassium phosphate and urea. The plots were located randomly on the experimental plot. The studies determined plant height, number of pods in plants, number of grains in a pod, plant yield and some morphological traits. During the growing season, nitrogen concentration was determined by the chlorophyll content in leaves using an N-tester SPAD 502 Plus, manufactured in Japan. The highest yield was observed in soybean variety Mangpong5 (1742 kg/ha), and the lowest yield was obtained in soybean variety Stine 3400-2 (1521 kg/ha). The results of statistical analysis of the research results using ANOVA showed the most significant difference in the yield of Mangpong5 varieties and other soybean varieties.