施用沼液配方肥对瓜栗生长的影响

Effects of Applying Biogas Slurry-Based Fertilizer on Pachira macrocarpa

对比研究施用沼液配方肥和无机复混肥的肥效特点及其对瓜栗生理指标、生长性状和生物量的影响。结果表明,在本试验条件下,沼液配方肥在瓜栗上的最佳施肥量为750 kg/hm2。在此施肥量下,植株表现为相对叶绿素含量、总叶面积、地径、胸径、株高、总生物量鲜重、总生物量干重、叶生物量鲜重分别比施用等效无机复混肥高13.8%、65.0%、26.2%、44.8%、37.2%、51.7%、114.6%、65.0%。

A pot experiment was conducted in this study to compare the effects of applying biogas slurry-based and inorganic compound fertilizer on the physiological indices, character and biomas with equivalent nutrient principles. The result showed that the optimum amount of fertilization on Pachira macrocarpa was 750 kg/hm^2 under the condition of this experiment. In this case, the highest increase of chlorophyll content, total leaf area, ground diameter, diameter at breast height （DBH）, plant height, fresh weight, dry weight and fresh weight of leaf biomass with applying inorganic compound fertilizer was 13.8%, 65.0%, 26.2%, 44.8%, 37.2%, 51.7%, 114.6%, 65.0%.