蓝藻有机无机复混肥对几种作物的增效试验
EFFICIENCY TEST ON ORGANIC AND INORGANIC FERTILIZES WITH CYANOBACTERIA (MICROCYSTIS) IN SEVERAL CROPS
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摘要: 研究了几种专用蓝藻有机无机复混肥,并对农作物进行了田间肥效试验。结果表明,施用蓝藻有机无机复混肥与普通N、P、K复合肥相比较,对烟草,西芹,韭菜,康乃馨等都有增产和改良土壤的效果。烟草试验表明,蓝藻复混肥的施用量以900kg/hm2效果最好,烟草产量、产值、上等烟比例分别比对照增加7.28%,5.04%,19.81%;西芹试验表明,施用蓝藻有机无机复混肥的各处理比对照高,其中以900kg/hm2和1200kg/hm2最高;其次是600kg/hm2;分别比对照高17.1%、16.3%和9.5%;而施用蓝藻有机无机复混肥900kg/hm2和1200kg/hm2,韭菜的株高、叶宽和产量比对照分别提高了12.21%和13.32%;康乃馨产花量则以施肥量为1200kg/hm2的最高,产花量为4865枝/100m2,比对照高11.6%。韭菜和土壤样品中未检测出藻毒素含量,表明使用蓝藻有机无机复混肥对植物和土壤是安全的。利用水华蓝藻生产有机无机复混肥,既解决了富营养化湖泊大量暴发的水华蓝藻的巨大生物量处置难题,又达到了改善环境、增加了经济和社会效益。Abstract: In the present paper, the authors studied the efficiency of fertilizers made from bloom forming cyanobacteria in field.Compared with efficiency of general compound fertilizes on the market, that of the organic and inorganic fertilizes from severalCyanobacteria (Microcystis) were higher to the output of tobacco, celery leek and carnation. Dose of 900kg/hm2is best in tobac2co experiments, and tobacco’ s yield, production value and fine tobacco ratio increased 7.28 %, 5.04 % and 19.81 %, respec2tively; Treated with three doses of 600kg/hm, 900kg/hm2and 1200kg/hm2, Chinese chives’output is higher than thecontrol’ s, increased 9.5 %, 17.1 % and 16.3 %, respectively; leek’ s high, leaf broad and yield increased 12. 21 % and13.32 % respectively, with treatment of 900kg/hm2, 1200 kg/hm2of Cyanobacterial fertilizer; Output of Carnation arrived to4865 bunch/100m2, increased 11.6 % compared with the control. No cyanobacterial toxin was determined in leek and soil, sug2gesting that the safety of cyanobacterial fertilizer. It not only solves the difficult problem on processing the great Cyanobacterialbiomass in some eutrophic lakes, but also improves environment, and increases benefits of society and economy.
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Keywords:
- Cyanobacterial (Microcystis) /
- Organic and inorganic fertilizes /
- T obacco /
- Celery /
- Chinese chives /
- Carnation
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