POTENTIAL OF INDIGENOUS CYANOBACTERIA TO CONTRIBUTE TO RICE PERFORMANCE UNDER DIFFERENT SCHEDULES OF NITROGEN APPLICATION

被引：9

作者：

YANNI, YG

机构：

[1] Sakha Agricultural Research Station, Kafr EI-Sheikh, A.R.

来源：

WORLD JOURNAL OF MICROBIOLOGY & BIOTECHNOLOGY | 1991年 / 7卷 / 01期

关键词：

D O I：

10.1007/BF02310919

中图分类号：

Q81 [生物工程学（生物技术）]; Q93 [微生物学];

学科分类号：

071005 ; 0836 ; 090102 ; 100705 ;

摘要：

Rice, IR-28, was fertilized by urea at 48, 96, 144 or 192 kg N/ha under three application schedules: (1) complete basal application before submergence, (2) split application, basal and 30 days after transplanting, or (3) 15 and 45 days after transplanting. Plant growth, yield, N accumulation and chemical fertilizer N-use efficiency were minimum under complete basal application. N fertilization at 15 and 45 days after transplanting was superior and formed the fastest and greatest colonization by cyanobacteria. The population profile comprised 64% Nostoc, 24% Anabaena and 8% Calothrix. Aulosira, Nodularia and Tolypothrix were each less than 1% of the total heterocystous cyanobacteria.

引用

页码：48 / 52

页数：5

共 17 条

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