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研究了控释BB肥在木薯上的应用效果。结果表明,随着控释BB肥用量的增加,木薯株高、茎基部粗度显著增加,施氮量20kg处理的木薯产量分别较施氮量10、15kg处理增加33.8%和32.7%。随着施肥次数的增加,木薯株高、茎基部粗度有增加趋势,在低施肥量下随着施肥次数的增加,结薯数和产量也有增加趋势,但高施肥量下以一次施肥或二次施肥产量较高,三次施肥明显降低。因此,木薯应用控释BB肥时应适当增加肥料用量以获得显著增产效果,同时,施肥方法采用一次施肥或二次施肥均可。
The effect of controlled release BB fertilizer on cassava was studied. The results showed that the cassava plant height and stem base thickness increased significantly with the increase of the BB fertilizer dosage. The cassava yield increased by 33.8% and 32.7% compared with 10 and 15 kg N treatments, respectively. With the increase of fertilization times, plant height and stem base roughness of cassava increased. With the increase of fertilization times, the tuber number and yield also increased. However, with high application of fertilizer, Sub-fertilization yield higher, three times significantly reduced fertilization. Therefore, the application of controlled release BB cassava fertilizer should be appropriate to increase the amount of fertilizer to obtain a significant increase in yield, while fertilization method using a fertilization or secondary fertilization can be.