沼液在桔梗生产上的应用效果试验

Experimental study on effect of application of biogas slurry in production of Platycodon grandiflorum

为了研究沼液对桔梗的增产效果,推进沼肥利用技术进步,促进桔梗产业的健康发展,开展沼液对桔梗增产效果的试验研究.通过田间对照试验,基本明确沼液对桔梗产量的影响效果.结果表明:4月下旬和7月下旬喷施75%沼液600kg/667m2 1次,或4月、6月、8月中旬喷施75%沼液300kg/667m2 1次,增产效果显著.

In order to ascertain the effects of firedamp liquid on yield increase of Platycodon grandiflorum, promote biogas fertilizer utilization technology progress, promote the healthy development of the industry of platycodon grandiflorum, we launched the firedamp liquid on experimental study on effect of platycodon grandiflorum. Controlled trials through the fields and analysis of variance test data, basically to ascertain the effects of firedamp liquid on yield of Platycodon grandiflorum. Results showed that in late April and late July spraying 600 kg/667 m2 biogas slurry one time at concentration 75%, or in mid-April, June and August spraying 300 kg/667 m2 biogas slurry one time at concentration 75%, the yield-increasing inereased significantly.