The effect of chemical fertilizer, and bioorganic-phosphate on the P-available, P-uptake, P-residue and the yield of soybean

Abstract

The availability and the residue of phosphate in soil are influenced by the addition of phosphorus (P) fertilizer and its uptake by plant. The addition of P fertilizer also commonly affects the plant yield. This research is aimed to assess the effect of chemical fertilizer and bioorganic-phosphate on the P-available and P-residue in soil, P-uptake by plant, and the yield of soybean. Field experiment was carried out in a Vertisol of South Lombok, Indonesia, which consisted of four treatments arranged in a randomized complete block design and replicated five times. The four treatments were P0 = control, P1 = bioorganic-phosphate + 125 kg PHONSKA ha−1, P2 = bioorganic-phosphate + 187.5 kg PHONSKA ha−1, and P3 = 250 kg PHONSKA ha−1. The P2 treatment resulted the highest P-available and P-residue in soil, the highest P-uptake by plant, and the highest yield of soybean. Meanwhile, the effect P1 and P3 on all parameters were not significantly different. There is a strong positive correlation (r = 0.97) between P-uptake by plant and the yield of soybean. As the P2 treatment produced the highest yield of soybean, and the yield at the P1 is relatively the same as P3, this indicates that the application of bioorganic-phosphate can reduce the dose of chemical fertilizer by up to 50%.

Enhancing phosphorus bioavailability in lateritic red soil: Combining Bacillus subtilis inoculated microbial organic fertilizer with reduced chemical input

“…Some consortium of P‐solubilizing bacteria act as a soil P decomposer. Bio‐organic fertilizer inoculation with a P‐solubilizing bacteria consortium ( Pseudomonas azotoformans , Acinetobacter baumannii and Bacillus paramycoides ) reduced P fixation by releasing occluded P and increase the active and mid‐labile P fractions (Susilowati et al., 2021). In addition, the combination of inorganic and biofertilizer inoculated with Azotobacter , Azospirillum and P‐solubilizing bacteria decrease Fe/AL‐P and facilitated P mobilization and solubilization from the non‐labile pool to the labile pool of P in tropical acidic soil (Ghosh et al., 2021).…”

Integration of phosphate solubilizing bacteria and ponska fertilizer as a soybean fertilization method that is adaptive to climate change

“…Materials used in this study were soybean seed of Argomulyo variety, inorganic fertilizer of NPK-PONSKA, and a consortium of phosphate solubilizing bacteria (PSB) consisting of Pseudomonas azotoformans, Acinetobacter baumannii and Bacillus paramycoides). These bacteria are isolated from dry land on the island of Lombok (personal collection) [14].This bacterial consortium could dissolve Ca-PO4 (0.29% of the total Ca3(PO4)2 contained in the Pikovskaya liquid medium) and produce Indole acetic acid (IAA of 37.2 µg mL 1 ) in vitro.…”

“…The positive effect of PSB inoculation on nodules occurred because of increasing rhizobium in colonizing the soybean roots. PSB inoculation in soils resulted in increased availability of P in soils and increased P uptake in plant tissues [14]. The increase in P uptake induces photosynthesis of plants to produce carbohydrates.…”