Effects of Biochar with Organic Materials on Substratum for Raising Rice Seedlings  

生物炭配合有机物料对水稻育秧基质的影响（英文）

作　　者：王晓燕[1] 方玉凤[1] 庞荔丹 孟婷婷[1] 戴建军[1] 

机构地区：[1]东北农业大学资源与环境学院,黑龙江哈尔滨150030

出　　处：《Agricultural Science & Technology》2016年第5期1155-1160,共6页农业科学与技术（英文版）

基　　金：黑龙江省应用技术研究与开发计划(GC13B105)~~

摘　　要：[Objective] With a rice variety ＂Long Rice 11＂ as a test cultivar,an experiment of raising rice seedlings with the new substrata prepared from biochar,and maize stalks,rice husks,organic fertilizer,turf,zeolite,fine river sand and arable layer soil by mixing according to certain volume proportions was caried out,in order to investigate the physical and chemical properties of different organic-material seedling-raising substrata and the effects of these substrata on seedling growth.[Method] The experiment raised seedlings in greenhouses and adopted randomized block arrangement.[Result] The substratum of biochar mixed with maize stalks and rice husks could increase the maximum water-holding capacity of the substratum,reduce the volume weight of the substratum and improve the buffering effect of the substratum.It also had great effects on the contents of alkali-hydrolyzale nitrogen and rapidly available potassium in the substratum,and could improve the root number and substantial degree of rice seedlings.[Conclusion] Biochar with maize stalks and rice husks（the treament HC） is the optimal substratum in this study.[目的]以水稻品种"龙稻11号"为供试品种,采用生物炭配合有机物料玉米秸秆和稻壳,同时添加有机肥、草炭、沸石、细河沙、耕层土等按一定的体积比混合,进行新基质的水稻育秧试验,研究生物炭配合有机物料新基质的理化性质及其对秧苗生长状况的影响。[方法]采用大棚育苗,随机区组试验。[结果]生物炭配合有机物料玉米秸秆和稻壳的基质能够提高基质的最大持水量,降低基质的容重,改善基质的p H缓冲性,对基质的碱解氮和速效钾含量影响较大,并且能够提高秧苗的发根数和充实度。[结论]生物炭配合有机物料玉米秸秆和稻壳的基质(处理HC)为最优基质。

关 键 词：BIOCHAR Rice seedling substrate Physical and chemical properties Seedlings growth 

分 类 号：S511[农业科学—作物学]