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요약정보
不同氮素对根结线虫及土壤微生物的影响 / Effect of different nitrogen on root-knot nematodes and its soil microorganisms
Resource Type
Academic Journal
Authors
左强
;
武凤霞
;
张淑彬
;
邢礼军
;
李吉进
;
肖强
;
刘建斌
;
ZUO Qiang
;
WU Fengxia
;
ZHANG Shubin
;
XING Lijun
;
LI Jijin
;
XIAO Qiang
;
LIU Jianbin
Source
植物保护 / Plant Protection
. 48(3):329-376
Subject
液氨
氨水
碳酸氢铵
土壤消毒
Language
Chinese
ISSN
0529-1542
Online Access
Find it @ DONGA
초록
为筛选根结线虫控制技术,采用传统平板法和Biolog ECO生态板评价了液氨、氨水和碳酸氢铵3种氮素对根结线虫及土壤微生物的影响.结果表明,等氮条件下液氨处理杀线虫效果最好且黄瓜产量最高,氨水次之.液氨用量在375.0 kg/hm2的条件下,对黄瓜根结线虫的防效达到71%,和10%噻唑膦颗粒剂(GF)45.0 kg/hm2处理相比效果没有显著差异(79.9%).种植前,细菌数量、AWCD值、Shannon指数、McIntosh指数和Simpson指数均随着液氨用量的增加而减少,随着氨水和碳酸氢铵用量的增加而增加;但所有处理均显著降低了土壤真菌的数量.黄瓜收获后,土壤细菌数量、真菌数量、AWCD值、Shannon指数、McIntosh指数和Simpson指数均随着氮素用量的增加而提高,且高于空白处理和10%噻唑膦GF 45.0 kg/hm2处理.以上结果说明,液氨、氨水和碳酸氢铵不但可以作为土壤肥料,也可以作为一种高效、低价和生态化的根结线虫防治剂进行推广应用.
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