不同新型肥料对江淮地区水稻生长及氮素吸收利用的影响
作者:
作者单位:

(1.安徽省农业科学院土壤肥料研究所/安徽养分循环与资源环境省级实验室,安徽合肥 230031;2.长丰县农业技术推广中心,安徽 长丰 231100)

作者简介:

吴萍萍(1982-),女,安徽贵池人,副研究员,博士,主要从事土壤资源环境方面的研究。E-mail:pingpingwu1982@126.com。

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基金项目:

基金项目:公益性行业(农业)科研专项(201503118);农业部植物营养与肥料学科群开放基金项目(APF2015017);安徽省农科院创新基金项目(17A1023);安徽省援疆援藏援青项目(1604e0302004)。


Effects of new-type fertilizers on rice growth,nitrogen uptake and utilization in Jianghuai region
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(1.Institute of Soil and Fertilizer,Anhui Academy of Agricultural Sciences/Anhui Provincial Key Laboratory of Nutrient Recycling,Resources and Environment,Hefei Anhui 230031;2.The Extension Center of Agricultural Technology at Changfeng County,Changfeng Anhui 231100)

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    摘要:

    传统肥料具有利用率低、易污染环境等缺点,筛选适合江淮地区水稻施用的新型肥料对于提高水稻产量及氮素利用效率,减少氮损失等具有重要意义。本试验在等氮量200 kg/hm2施用条件下,设置控失尿素、含锌尿素和腐植酸尿素等不同新型肥料处理,同时以普通尿素作为对照,研究其对水稻产量构成因素、土壤理化性质以及氮素吸收利用效率等的影响。结果表明,施用含锌尿素和腐植酸尿素有利于提高水稻有效穗、穗粒数和千粒重,水稻产量较普通尿素处理分别增产5.6%和4.3%,而控失尿素一次性施肥处理水稻反而减产6.5%。腐植酸尿素、控失尿素和含锌尿素施用能够提高土壤有机质、全氮和碱解氮含量。不同类型新型肥料均能够增加水稻地上部氮素吸收量,尤其是腐植酸尿素和含锌尿素,两处理中氮肥偏生产力、氮肥农学效率和氮素表观利用率较普通尿素处理分别提高1.7~2.1 kg/kg、1.7~2.1 kg/kg和6.2%~12.8%。总体而言,江淮地区水稻种植中适宜施用腐植酸尿素和含锌尿素两种新型肥料,有利于提高水稻产量及氮素吸收利用效率。

    Abstract:

    The traditional fertilizer has some disadvantages such as low use efficiency and environmental pollution. It is of great significance to screen new-type fertilizers suitable for rice in Jianghuai area for improving rice yield and nitrogen use efficiency and reducing nitrogen loss. In this study,loss-controlled urea,urea containing zinc and humic acid urea were used to determine their effects on rice yield,soil physical and chemical properties and nitrogen uptake and use efficiency under N 200 kg/hm2 rate. And conventional urea was set as control. The results showed that,the application of urea containing zinc and humic acid urea increased the rice effective panicles,grain number per panicle,and thousand grain weights,and increased the rice yield by 5.6% and 4.3%,respectively,compared with conventional urea treatment. The basal application of loss-controlled urea reduced the yield of rice by 6.5%. Humic acid urea,loss-controlled urea by split application and urea containing zinc can improve soil organic matter,total nitrogen and alkali-hydrolysable nitrogen contents. Different new-type fertilizers can enhance nitrogen uptakes in the above-ground parts of rice,especially humic acid urea and urea containing zinc. Nitrogen partial factor productivities,nitrogen agronomic efficiencies and nitrogen recovery efficiencies in humic acid urea and urea containing zinc treatments were increased by 1.7~2.1 kg/kg,1.7~2.1 kg/kg and 6.2%~12.8%,respectively. In general,humic acid urea and urea containing zinc are suitable for rice planting in Jianghuai region,which can improve rice yield,nitrogen uptake and utilization efficiency.

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吴萍萍,李录久,耿言安,姚文麒.不同新型肥料对江淮地区水稻生长及氮素吸收利用的影响[J].中国土壤与肥料,2019,(3):149-153.

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  • 收稿日期:2018-07-03
  • 最后修改日期:
  • 录用日期:2018-10-04
  • 在线发布日期: 2019-06-26
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