几种主要CO2施肥肥源性能的比较与评价

<p>»17 »3 ù2001 M5j, i/。Íg÷ÄCO2 i0v, ÛÎ y, i®9 y。2. 2. 2 煤球燃烧法¿ o VñÏ÷÷Á 3CO2, b ° =òÄCO2 iûà 6, g÷Í, 6 Î y,CO2 iÚ(m5a)。üÉ g HW,ÊÄ i0Fv,®¿ÄÐQE。Tþ 8CO2s+ÄVC¹:M HW©ç,ù ÖÄCO2 i ® 0 5 m)CO2 i30min -9F, ª/, 10 20 m)CO2 iûÃ/(m5b)。Íg÷ÄCO2 i 6 ª üCO2db v¿ 8;h Û å &gt;,ùg÷ÄCO2 i/5®¿CO2 db Êh Û å &gt; îÁ。ª ùÊÄCO2 i (®V ?Ð ¿ o |ÐCO2 db h µ1。图 5 煤球燃烧法 CO2浓度时空分布特性Fig. 5 Space-time distribution of CO2 releasedby honeycomb briquet combustion2. 2. 3 CO2颗粒气肥®m6 A,9 R ì g °Ñ iCO2 i °MÄ wLíA÷Y。*ä£ ô&amp;shy; -, g uÐv uCO2 iMµKv,ÿÚ70 100L/L,£ ôª®¿ 8;T¨,4Nµshl。13: 30 -ª g uCO2 iÇ1v uÚ20 30L/L,ÏöY HMµ÷l。 ª ü R ì g¥CO2 db db Î ( ®, 40 kg /667m2¨ ?¿ ÿ °Ñ iCO2Ìâ。2. 3 î&#39;1 CO2g÷î&#39;À ð î&#39; !|øî&#39; s。ô &nbsp;Á ð h 9 ØÁ 31 m312 jm,¦½o©.v ° v9 =Ä Rì g jrs J.Ägý&lt;, 1996,23( 6): 3032.6 Moe R. CO2 enrichment in ScandinaviaJ. Act Hort,1984, 162: 217 225.Comparison and Appraisal of Four Different Methods for CO2 EnrichmentWei Min1, Wang Xiufeng1, Xing Yuxian1, Zhang Yanpeng1, Wang Jiyin2(1. Horticultural College of Shandong Agricultural University, Tai &#39;an 271018, China;2. Feicheng Agricultural Bureau of Shandong Province, Feicheng 271000, China)Abstract: Three methods for CO2 enrichment-chemical reaction( H2SO4+ N H4HCO3), briquet combustion,granular CO2 fertilizer were comparatively studied in free tunnels and solar greenhouses for cucumbercultivation, and the yearly total cost of different methods( including pure liquid CO2 ) were compared.Chemical reaction had higher CO2 releasing velocity and relatively lower equipment depreciation charge;honeycomb briquet combustion produced CO2 at moderate rate, and the raw material cost was the least;granular CO2 fertilizer having highest raw material cost released CO2 slowest. When the re-use of by-product of chemical reaction was concerned, annual cost of chemical reaction was similar with that ofbriquet combustion and liquid CO2. Comprehensively evaluated from viewpoints of ecology, energy-saving, cost and effect, briquet combustion was in more accordance with the present situations in Chinaincluding facility type, economic situation, resource condition and technique level, and so on.Key words: CO2 sources; chemical reaction; briquet combustion; granular CO2 fertilizer; liquid CO214 j&lt;ýñÐ2001 M</p>