不同磷肥品种在石灰性土壤中的磷形态差异

吉冰洁,李文海,徐梦洋,牛金璨,张树兰,杨学云

Varying Synthetic Phosphorus Varieties Lead to Different Fractions in Calcareous Soil

JI BingJie,LI WenHai,XU MengYang,NIU JinCan,ZHANG ShuLan,YANG XueYun

表2 不同磷肥品种对玉米植株干物质量、吸磷量及磷肥利用率的影响

Table 2 Effects of different varieties of phosphorus fertilizers on above-ground biomass, P uptake of maize, and P use efficiency

处理 Treatment 干物质量 Biomass (g/plant) 植株吸磷量 P uptake of plant (mg/plant) 磷肥利用率PUE (%) 差减法 Subtraction method 平衡法 Balanced method Control 3.70±0.06 e 3.24±0.27 e — — SSP 10.83±0.48 c 15.05±1.14 c 6.75 c 8.60 c CaMg P 6.09±0.43 d 6.93±0.02 d 2.11 d 3.96 d MAP 11.01±0.27 bc 18.97±0.99 b 8.99 b 10.84 b DAP 11.73±0.60 ab 22.43±0.06 a 10.97 a 12.82 a Poly P 11.88±0.74 a 22.23±1.87 a 10.85 a 12.70 a Urea P 10.40±0.26 c 15.35±1.33 c 6.92 c 8.77 c SSP+ASA 10.73±0.27 c 15.47±0.69 c 6.99 c 8.84 c