The Effect of Plant Density, Zinc Added to Phosphorus Fertilizer Sources and Location on Selected Yield Parameters of Soybean

Abstract

Background: Soybean [Glycine max (L.) Merrill] is an annual herbaceous leguminous grain crop which is cultivated mainly for its oil and protein. The objective of the study was to determine the effects of plant density and zinc added to phosphorus fertilizer sources on soybean yield performance under different environmental conditions. Methods: A field trial was executed in two sites during the 2018/19 and 2019/20 summer planting seasons. The experimental design involved a 2 × 2 × 5 factorial fitted into a randomized complete block design (RCBD) with four replications. The experiment consisted of two plant densities, a lower plant density of 66 666 plants/ha and a higher plant density of 111 111 plants/ha. The five different types of fertilizer treatments were single superphosphate, monoammonium phosphate, zinc sulphate added to single superphosphate, zinc sulphate added to monoammonium phosphate and control. Result: The results showed that plant density has a significant effect (P less than 0.05) on soybean number of pods per plant and the field biomass yield. Soybean planted under lower plant density conditions produced a significantly larger number of pods per plant during both planting seasons, whereas higher plant density conditions resulted in a higher soybean field biomass yield during the 2018/19 planting season. It was observed that soybean treated with monoammonium phosphate had higher seed mass.

Productivity, Profitability and Quality of Soybean [Glycine max (L.) Merrill] Influenced by Phosphorus and Sulphur Fertilization

“…Oil content in soybean seed was determined by Soxhlet's Ether Extraction method (A.O.A.C., 1965). The data were statistically analysed by adopting appropriate method of standard analysis of variance (Gomez and Gomez, 1984).…”

“…Its uptake and utilization by soybean are essential for ensuring proper nodule formation and improving yield and quality of the crop. Phosphorus fertilizer sources have been shown to positively influence on soybean yields (Gonyane and Sebetha, 2022).…”

Comparative protein profiling of two soybean genotypes with different stress tolerance reveals major components in drought tolerance

“…Merr.) originates in the Yellow River Basin in China and is an annual herbaceous plant (Gonyane and Sebetha, 2021). Soybeans are widely used in many industries, such as food and animal husbandry.…”

Response of Phosphorus, Sulphur and Foliar Spray of GA3 on Nutrient Content and Uptake of Soybean [Glycine max (L.) Merrill]

“…Phosphorus fertilizer sources have been shown to positively influence soybean yields (Gonyane and Sebetha, 2022). Diammonium phosphate fertilizer source is known to significantly increase the number of pods per plant in the case of common beans, while the lowest number of pods per plant have been recorded in cases where there have been no applications of phosphorus fertilizer (Meseret and Amin, 2014).…”

“…Diammonium phosphate fertilizer source is known to significantly increase the number of pods per plant in the case of common beans, while the lowest number of pods per plant have been recorded in cases where there have been no applications of phosphorus fertilizer (Meseret and Amin, 2014). The triple superphosphate, rock phosphate phosphorus and monoammonium phosphate resulted in higher seed mass across the planting seasons (Gonyane and Sebetha, 2022). Sulphur is essential for synthesis of proteins, vitamins and sulphur containing essential amino acids and is also associated with nitrogen metabolism.…”