有机肥施用量及深度对柑橘产量和品质的影响
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国家重点研发计划项目(2016YFD0200104)。


The response of citrus yield and quality to application of organic fertilizer with different depths and rates
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    摘要:

    为提高重庆长寿柑橘的产量和品质,通过田间小区试验,研究了有机肥不同施用量与施肥深度对柑橘园土壤肥力和柑橘养分、品质及产量的影响。结果表明:与未施有机肥处理相比,施用有机肥可以不同程度增加土壤中碱解氮、有效磷和速效钾含量,处理5碱解氮最高,处理6有效磷、速效钾最高,分别提高98.25%、106.79%和43.33%;并能提高土壤有机质含量,最好的处理3高出对照58.87%;同时可以减小土壤容重,提高土壤pH值及土壤地力;施用有机肥可以提高柑橘叶片中的全磷、全钾、全钙、铜、硼、锌含量,使柑橘叶片中的养分含量更适宜于柑橘生长,进而改善柑橘果实品质,提高柑橘产量,增加经济效益。综合考虑土壤肥力变化,柑橘叶片营养、产量和品质提高,以及经济效益,有机肥施用量20 t/hm2并施入0~40 cm土层效果最好。

    Abstract:

    In order to improve the yield and quality of citrus production in Changshou,Chongqing,the effect of organic fertilizer application with different depths and rates on soil fertility,leaf nutrient,fruit yield and quality in citrus orchards was studied.The results showed that soil pH,soil organic matter(SOM),alkalihydrolyzable nitrogen(N),available phosphorus(P),available potassium(K)were obviously increased by organic fertilizer applications than that of control(no organic fertilizer application).The concentrations of P,K,calcium,copper,boron and zinc in citrus leaf were increased by organic fertilizer applications when compared with control.Citrus yield was significantly increased by organic fertilizer applications with ranges of 2% to 62%.Meanwhile,the quality parameters of citrus fruit especially titratable acid content and total soluble sugar were greatly improved by organic fertilizer application.By considering change of soil fertility,leaf nutrients,fruit yield and quality,and efficacy,organic fertilizer application with 20 t/hm2 at 0~40 cm depth was recommended.

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陈大超,张跃强,甘涛,周双,唐晓东,石孝均,邓胜兴.有机肥施用量及深度对柑橘产量和品质的影响[J].中国土壤与肥料,2018,(4):143-147.

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  • 在线发布日期: 2018-08-17
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