Abstract: Study on the effects of different fertilization methods on the growth and development of Ankang Amorphophallus Konjac,in order to explore the best fertilization way of Konjac.This study took the local Konjac in ankang as material,set 3 different fertilization treatments in the soil fertility equivalent condition:chemical treatment,organic treatment,mix treatment.Based on plot experiment in the field,studied photosynthetic pigment,growth characters and yield of Konjac under different fertilization treatments.The results showed that mix fertilizer treatment was beneficial to the accumulation of chlorophyll a,chlorophyll b and carotenoid,various agronomic traits (plant height,petiole length,petiole diameter,leaf disc diameter and top leaves long,wide) had the best performance;In the whole of chemical fertilizer,organic fertilizer,mixed fertilizer under three different treatments,the yield of Konjac increased 8.8%,9.4%,28.1% respectively than CK,the disease occurrence rate decreased by 3.3%,3.3%,6.6%.Mixed fertilization of chemical fertilizer and organic fertilizer can improve the yield and reduce the soft rot incidence.

Key words: Konjac, Tertilization treatment, Photosynthetic pigment, Growth characters, Yield

CLC Number: 

• S141

• S143