The choice of phosphate fertilizer has a special concern in alkaline soils due to its direct effect on the availability and uptake of phosphorus and micronutrients, as it can affect the rate of ammonia volatilization. This study aims to increase potato productivity in alkaline soils and reducing ammonia emissions by using acid fertilizers and controlling the amount of irrigation water. Two-year field trials were conducted in 2018 and 2019 growing seasons to investigate the influence of irrigation levels and P fertilizers on potato yield and ammonia volatilization from Arenosols. Potato (Solanum tuberosum, L.) cv Kara Spp. plants were irrigated at 75 or 100% of the evapotranspiration (ET₇₅ and ET₁₀₀) and were fertilized with monopotassium phosphate (MPP) or urea phosphate (UP), beside a control treatment without P addition. UP minimized the soil pH to 6.95 and 7.00 in the ET₇₅ and ET₁₀₀ treatments, respectively, compared to 7.80 and 7.85 in the case of MPP. The maximum potato tubers yield was achieved from ET₁₀₀ and UP. The cumulative NH₃ volatilization ranged between 33 and 85 N kg ha⁻¹ per season which was accounted for 12 to 27% of the total applied nitrogen. UP and ET₁₀₀ minimized the N loss from 27 to 12%. Reducing the levels of added water increased the quality of tubers and efficiency of the added water, but it caused a significant loss in the total and marketable yield and elevated the rate of ammonia emissions from the calcareous sandy soils. The acidic P fertilizers are effective in reducing the ammonia loss and increase the availability of micronutrients.

磷肥的选择在碱性土壤中尤为重要，因为它直接影响磷和微量营养素的获取和吸收，因为它会影响氨的挥发速率。这项研究旨在通过使用酸性肥料和控制灌溉水量来提高碱性土壤的马铃薯生产力并减少氨气排放。在2018年和2019年的生长季节进行了为期两年的田间试验，以调查灌溉水平和磷肥对马铃薯产量和槟榔中氨气挥发的影响。马铃薯（Solaum tuberosum，L.）cv Kara Spp。将植物的蒸腾量（ET ₇₅和ET _100的75％或100％）灌溉），然后在不添加磷的对照处理下，用磷酸一钾（MPP）或磷酸脲（UP）施肥。UP将ET ₇₅和ET ₁₀₀处理的土壤pH值分别降至6.95和7.00 ，而MPP处理则为7.80和7.85。从ET ₁₀₀和UP获得最大的马铃薯块茎产量。每个季节累积的NH ₃挥发量在33至85 N kg ha ^-1之间，占总施氮量的12％至27％。UP和ET ₁₀₀将氮损失从27％降至12％。减少添加水的水平提高了块茎的质量和添加水的效率，但是却造成了总产量和可销售产量的重大损失，并增加了钙质砂质土壤中氨的排放速率。酸性磷肥可有效减少氨气损失并增加微量营养素的利用率。