Different amount of compound fertilizer on cassava seedling growth and effects of fertilizer utilization efficiency

doi:10.14088/j.cnki.issn0439-8114.2019.14.013

Abstract

Abstract: Taking cassava（Manihot esculenta Crantz） varieties South China 205 natural hybrid seeds as the experimental material, through pot experiment, research applying compound content （0~30 g/pots,rates of 0~4.246 t/hm²） seems to cassava seedling growth and the influence of the fertilizer use efficiency. The results showed that the application of compound fertilizer could accelerate the excavation of cassava seedlings, promote the growth of seedlings, and increase the content and accumulation of N,P and K of seedlings. Change with dosage, root growth of cassava seedlings increased significantly. Seedling ground diameter, stem height, dry matter accumulation, seedling quality index and plant N,P,K accumulation and nutrient use efficiency were increased after the first decreases, and fertilizer N,P,K nutrient utilization rate had dropped significantly. Among them, the comprehensive effect of compound fertilizer（N∶P₂O₅∶K₂O=28∶6∶6） was the best when applied at 10 g/pot （1.415 t/hm² after conversion）.

Key words: cassava（Manihot esculenta Crantz） seedling, compound fertilizer, fertilizer amount, seedling growth, fertilizer utilization efficiency

CLC Number:

S143.58
S533

LIANG Zhen-hua, YANG Hai-xia, LI Ping, LIU Lian-jun, LI Heng-rui, HE Wen, WEI Qiao-yun. Different amount of compound fertilizer on cassava seedling growth and effects of fertilizer utilization efficiency[J]. HUBEI AGRICULTURAL SCIENCES, 2019, 58(14): 55-58.

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