沼肥对槟榔芋疫病和软腐病发生及产量的影响

Effects of Biogas Fertilizer on the Occurrence of Phytophthora colocasiae and Erwinia aroideae of Areca Taro and Its Yield

以槟榔芋为供试材料,研究了沼肥对槟榔芋疫病和软腐病发生及产量的影响。结果表明:施用沼肥较对照氮磷钾复合肥均可降低槟榔芋疫病和软腐病发生,同时可提高槟榔芋产量。其中,以施用45 000 kg/hm^2沼渣+75 000 kg/hm^2沼液处理效果最好,对疫病和软腐病的抗病效果分别为37.95%和49.81%,均高于其它2个处理,较对照复合肥处理增产显著。因此,沼肥具有重要的商品化开发利用价值。

Areca taro as the test material,the effects of biogas fertilizer on the occurrence of Phytophthora colocasiae and Erwinia aroideae of Areca taro and its yield were investigated.The results showed that the biogas fertilizer could reduce the occurrence of Phytophthora colocasiae and Erwinia aroideae of Areca taro and increase Areca taro yield compared with the control.The treatment of 45 000 kg/hm 2 biogas residue+75 000 kg/hm 2 biogas liquid among all treatments had the best disease resistance.The resistances to Phytophthora colocasiae and Erwinia aroideae of Areca taro were 37.95%and 49.81%,respectively,which were higher than that of two other treatments.They could increase significantly the yield of Areca taro compared with the control treatment of compound fertilizer.Therefore,biogas fertilizer had important commercial development and utilization values.