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中文摘要：
采用设置田间小区的试验方法，在贵州黔中地区研究不同氮磷钾配方在甘薯上的应用效果。结果表明：不同处理对甘薯的生长影响不同，配方施肥对甘著分支数，薯蔓长，生物量等都有明显促进作用；甘薯施用氮磷钾肥要适量，可适当施用农家肥，肥料配方为纯N135kg／hm2、P2O5 67．5kg／hm2、K2O 202．5kg／hm2时产量最高，比对照增产22．12％，因此，建议该区在生产甘薯采取该配方，以获得较好增产效果。
英文摘要：
For study the effects of different formula fertilization on sweet potato, a field experiment was carried in central Guizhou. The re- sults showed that： formula fertilizer application can significant increasing tile branch, the sweet potato vines, the biomasses and so on. In dif- ferent treatment, the eftects were different; Applying fertilizer should be appropriate, suitable application of manure is useful. The highest yield was obtained when recommended amount was adopting N135 kg/ha,PzOs67.5 kg/ha, K20 202.5 kg/ha for sweet potato in this area. Compared to the CK, it was increased 22.12%. Following the recommendation will get high yield.
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