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中国农学通报

中国农学通报 ›› 2017, Vol. 33 ›› Issue (28): 1-6.doi: 10.11924/j.issn.1000-6850.casb16080062

所属专题： 玉米

• 农学 农业基础科学 •    下一篇

潮土区夏玉米高产与环境友好的氮肥投入量研究

郭战玲,寇长林,张香凝,李太魁,杨占平,沈阿林   

  1. 河南省农业科学院植物营养与资源环境研究所,河南省农业科学院植物营养与资源环境研究所,河南省农业科学院植物营养与资源环境研究所,河南省农业科学院植物营养与资源环境研究所,河南省农业科学院植物营养与资源环境研究所,河南省农业科学院植物营养与资源环境研究所；浙江省农业科学院 环境资源与土壤肥料研究所
  • 收稿日期:2016-08-15 修回日期:2016-09-21 接受日期:2016-10-09 出版日期:2017-10-24 发布日期:2017-10-24
  • 通讯作者: 寇长林
  • 基金资助:
    国家公益性行业（农业）科研专项“水田合理耕层构建技术指标研究与集成示范”(201503118)；国家科技支撑计划项目“粮食主产区作物丰 产节水节肥技术集成与示范”(2013BAD07B11)。

Effects of Growing-microbial Agents on Yield, Soil Nutrients and Heavy Metal Cd of Double Cropping Rice

寇长林,张香凝,李太魁,杨占平 and 沈阿林   

  • Received:2016-08-15 Revised:2016-09-21 Accepted:2016-10-09 Online:2017-10-24 Published:2017-10-24

摘要： 为了探明种植型微生物菌剂的稻田生物修复与培肥效应。本研究以“晨奥润泽”种植型微生物菌剂为代表材料，设置0 kg/hm2 (CK)、30 kg/hm2、60 kg/hm2、90 kg/hm2、120 kg/hm2 5 个处理，研究种植型微生物菌剂对双季稻耕层土壤养分、重金属Cd及产量的影响。水稻产量伴随“晨奥润泽”用量的增加而增加，有效穗及每穗粒数是其高产的主要因子；“晨奥润泽”能够有效提高土壤的速效养分含量，增强了土壤供肥能力；提高根系中的含氮量、含钾量，促进茎叶中的氮素、钾素往籽粒中进行运转，并显著提高了茎秆中的钾含量，增强水稻抗倒能力；“晨奥润泽”主要通过降低土壤有效Cd 来降低水稻对Cd 的积累，且表现出伴随“晨奥润泽”施用量的增加而降低的趋势，有利于保障双季稻的安全生产。从节本增效角度出发，“晨奥润泽”的最佳用量在90 kg/hm2左右，早、晚稻较对照分别增产12.9%、12.6%，且具有较好的培肥及生物修复效应。

关键词: 控释肥, 控释肥, 辣椒, 生长, 干物质, 分配

Abstract: To clarify the effect of growing-microbial agents on paddy bioremediation and fertilization, this study set growing- microbial agent “chenaorunze” as representative material, five treatments including 0 kg/hm2 (CK), 30 kg/hm2, 60 kg/hm2, 90 kg/hm2, 120 kg/hm2 were set to research the effects of growingmicrobial agents on topsoil nutrients, heavy metal Cd and yield of double cropping rice. The results showed that: rice yield showed an increasing trend with increasing dosage of“chenaorunze”, the effective panicle and grains per spike were the major factors of high- yield;“chenaorunze” improved soil available nutrient effectively, increased soil supplying nutrient capability; heightened the nitrogen and potassium content of root, promoted nitrogen and potassium in stem transferring to grain, and the capacity of lodging- resistant was strengthened as the addition of potassium content in stem;“chenaorunze”could reduce rice Cd accumulation mainly by the way of decreasing soil effective cadmium, and Cd accumulation showed a decreasing trend with increasing dosage of“chenaorunze”, thus, it was beneficial to guarantee the safe production of double cropping rice. The optimum dosage of“chenaorunze”was about 90 kg/hm2 with a better bioremediation and fertilization effect from the perspective of decreasing cost and increasing efficiency, the yield of early and late rice increased by 12.9% and 12.6% compared with control respectively.

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