秸秆腐解剂对麦秸腐解速率及水稻产量的影响

发布时间：2018-07-20 17:08

【摘要】：设麦秸不还田(CK_1)、麦秸全量还田(CK_2)、麦秸还田且施用4种秸秆腐解剂(T_1~T_4)6个处理,研究秸秆腐解剂对麦秸秆腐解动态和水稻生长的影响。结果发现,麦秸还田24 d后,施用腐解剂能够提高小麦秸秆的腐解率,并且在麦秸秆全量还田条件下施用秸秆腐解剂能够显著促进小麦秸秆中氮的释放;在插秧30 d后,腐解剂能够显著促进磷的释放,但降低了水稻有效穗数、结实率、水稻产量,减产幅度达1.8%~7.1%;麦秸全量还田处理(CK_2)能提高水稻的有效穗数、结实率、千粒质量、水稻产量。
[Abstract]:The effects of straw decomposing agent on the decomposition dynamics of wheat straw and rice growth were studied by six treatments: wheat straw not returning to the field (CKS 1), wheat straw returning to the field (CK2), wheat straw returning to the field and applying four kinds of straw decomposing agent (T 1 + T 4). The results showed that when wheat straw was returned to the field for 24 days, the decomposition rate of wheat straw could be increased by applying decomposing agent, and the nitrogen release from wheat straw could be significantly promoted when wheat straw was returned to the field in full quantity, and 30 days after transplanting seedlings. The decomposing agent could significantly promote phosphorus release, but decreased the effective panicle number, seed setting rate, rice yield, yield of rice and yield of 1.8and 7.1.The CK _ 2 treatment could improve the effective panicle number, seed setting rate, thousand grain mass and rice yield of rice.
【作者单位】：江苏省农业科学院农业资源与环境研究所;
【基金】：国家科技支撑计划(编号:2012BAD08B08R03) 江苏省农业科技自主创新资金[编号:CX(13)3047]
【分类号】：S141.4;S511.22

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