Kan lalai phosphorus doi kitchakam khong chulinsi: 3. Itthiphon khong laksana khong chua thi mi to kan lalai khong phosphorus.
1985
Somsak Vangnai | Sucheep Soontornsorn
The objective of this study was to evaluate phosphorus dissolution activities of two types of inoculants, the enriched culture (Inoculant E.) and the incubated acid sulfate soil (Inoculant I.). The experiment was performed by mixing each type of inoculant with wet rock phosphate, 1:1 by weight, and the mixtures were incubated for 3 weeks at room temperature. Two available phosphorus of the mixtures were analyzed weekly following Bray II extraction procedure. Results indicated that inoculant I was able to dissolve highest phosphorus from rock phosphate. Moderate dissolution capacity was observed with inoculant E. Addition of plant tissue tended to increase dissolution efficiency of inoculant E. Relatively low and constant phosphorus levels were observed, throughout the experiment, with treatment without inoculant. It was suggested that phosphorus dissolution from rock was controlled by activity and type of inoculant. It was anticipated that these research results would be beneficial for future use of rock phosphate as fertilizer.
显示更多 [+] 显示较少 [-]