基于田口方法的草菇渣堆肥育秧基质配方筛选研究
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作者单位:

(1.江苏里下河地区农业科学研究所,江苏 扬州 225007;2.江苏省生态农业工程技术研究中心,江苏 扬州 225007;3.扬州大学环境科学与工程学院,江苏 扬州 225127)

作者简介:

徐荣(1988-),男,江苏仪征人,硕士研究生,从事废弃物资源化利用等领域研究。E-mail:realmaridreal@126.com。

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基金项目:

基金项目:江苏省重点研发计划(社会发展)项目(BE2017688、BE2015661);扬州市市级计划 -现代农业项目(YZ2018040)。


Study on formula optimization of rice seedling substrate based on straw mushroom residue compost by Taguchi method
Author:
Affiliation:

(1.Institute of Agricultural Sciences for Lixiahe Region in Jiangsu,Yangzhou Jiangsu225007;2.Jiangsu Research & Engineering Center for EcologicalAgriculture,Yangzhou Jiangsu225007;3.College ofEnvironmental Science andEngineering,YangzhouUniversity,Yangzhou Jiangsu225127)

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    摘要:

    为保证草菇渣堆肥为主的水稻育秧基质配方筛选结果的稳定性和准确性,采用变异系数法赋予秧苗指标权重,通过单因素试验与田口方法相结合的方式,客观有效地筛选基质配方。结果表明:壮苗指数可单独作为简单功能组分筛选中机插秧苗长势的有效评价指标,而茎基宽因机插秧秧龄要求较短,其评价能力相对较弱;草菇渣堆肥、速效肥及锌肥的添加对秧苗生长的影响均达到显著水平( P<0.05),而最佳配方仅包括60%(w/w)草菇渣堆肥和 1‰(w/w)锌肥;速效肥的添加在育秧前期显著增加基质盐度( P<0.05),后期由于水分淋洗,而无法有效供养;锌肥则兼具调酸和促根生长功能,而使得生根粉作用并不显著( P>0.05);草菇渣堆肥保水能力和育秧水分的严格管理可能是导致保水剂并非配方组分的主要原因;此外,Nash-Sutcliffe效率系数的计算结果(NSE=0.943),证明基质筛选模型的稳定性和准确性。

    Abstract:

    In order to ensure the stability and accuracy of screening results for rice seedling substrate mostly based on strawmushroom compost,the weights of rice seeding parameters were assigned by the calculation of coefficient ofvariation,and the substrate formula was objectively and effectively selected through the combination of single-factor experiment andTaguchi method.Results showedthat,compared with other parameters,the sound seedling index was the most effectiveevaluation standard for the rice seeding growth during the dosage screening of simple functional component,while the base stem width was the weakest one during any experiment due to the demand for short cycle of rice seeding growth duringmechanized transplanting.Result from Taguchimethod,the straw mushroomcompost,as well as chemical fertilizerand zincsulfate,had an significantly impaction on the growth of riceseeding( P<0.05).The optimum formula for riceseeding substrate was simply consist of60%(w/w)straw mushroom compost and1‰(w/w)zincsulfate,the zinc sulfate could be an effectively alternative to the naphthylacetic acid for the reason of acid modulation and the promotion of root growth(P<0.05).The addition of chemical fertilizer could cause the promotion of salinity in substrate during the early growth stageof the riceseedling( P<0.05)and leaching result in nutrient insufficiency during starvationperiod.On account of goodwater retention capacity by straw mushroom compost and the strict water management during the rice seedingcultivation,the water-retaining agent was excluded from theformula.Inaddition,the stability and accuracy of the substrate screening model was verified by the Nash-Sutcliffe efficiencyindex(0.943)calculated between the predicted values by Taguchi method and measured values.

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徐荣,朱凌宇,王小治,张家宏,寇祥明,王桂良,唐鹤军,王守红.基于田口方法的草菇渣堆肥育秧基质配方筛选研究[J].中国土壤与肥料,2019,(6):223-234.

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  • 收稿日期:2019-01-05
  • 最后修改日期:
  • 录用日期:2019-03-29
  • 在线发布日期: 2019-12-25
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