沼渣生物质炭对西南喀斯特山区沼液灌溉土壤氮淋溶和白菜产量的影响 Effects of solid-digestate biochar application on soil nitrogen leaching and cabbage yield with liquid-digestate irrigation in karst-mountainous region of southwest China期刊界 All Journals 搜尽天下杂志传播学术成果专业期刊搜索期刊信息化学术搜索

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沼渣生物质炭对西南喀斯特山区沼液灌溉土壤氮淋溶和白菜产量的影响

引用本文：	江涛,王立国,孙芳芳,成剑波,何腾兵,秦松,范成五,阴文芳.沼渣生物质炭对西南喀斯特山区沼液灌溉土壤氮淋溶和白菜产量的影响[J].浙江农业学报,2021,33(11):2104.

作者姓名：	江涛王立国孙芳芳成剑波何腾兵秦松范成五阴文芳

作者单位：	1.贵州大学农学院,贵州贵阳 5500252.贵州大学新农村发展研究院,贵州贵阳 5500253.贵州省山地畜禽养殖污染控制与资源化技术工程实验室,贵州贵阳 5500254.贵州省农业科学院土壤肥料研究所,贵州贵阳 550006

基金项目：	贵州省自然科学基金(〔2020〕1Y191);贵州省生物学国内一流学科建设项目(GNYL〔2017〕009);贵州省科技厅基础条件平台建设项目(〔2019〕]5701)

摘要：	为探讨沼渣生物质炭施用对黄壤和石灰土氮淋溶和白菜产量的影响,于温室大棚开展沼渣生物质炭施用比例分别为0(CK)、1%(BC1)、2%(BC2)、4%(BC4)、6%(BC6)的模拟沼液灌溉的盆栽试验。结果表明,施用沼渣生物质炭对黄壤氮素淋溶和白菜氮素吸收量无显著影响,但施用6%的沼渣生物质炭可显著降低石灰土氮素淋溶量,总氮、铵态氮、硝态氮和亚硝态氮的淋溶量分别降低12.06、11.82、1.14、0.103 kg·hm^-2,降幅分别达35.89%、52.99%、25.53%、23.25%。在石灰土上施用沼渣生物质炭处理的白菜氮素吸收量增加9.25~19.13 kg·hm^-2,且以BC6处理的白菜氮素吸收量最高,达到60.15 kg·hm^-2。另外,在黄壤和石灰土上施用沼渣生物质炭均对白菜有增产效果,增幅分别在29.82%~68.78%、23.58%~79.07%,分别在BC4和BC6处理下获得最大产量(13.81 t·hm^-2和9.01 t·hm^-2)。
关键词：	沼液灌溉沼渣生物质炭氮淋溶白菜产量酶活性喀斯特山区
收稿时间：	2021-02-19
Effects of solid-digestate biochar application on soil nitrogen leaching and cabbage yield with liquid-digestate irrigation in karst-mountainous region of southwest China

JIANG Tao,WANG Liguo,SUN Fangfang,CHENG Jianbo,HE Tengbing,QIN Song,FAN Chengwu,YIN Wenfang.Effects of solid-digestate biochar application on soil nitrogen leaching and cabbage yield with liquid-digestate irrigation in karst-mountainous region of southwest China[J].Acta Agriculturae Zhejiangensis,2021,33(11):2104.

Authors:	JIANG Tao WANG Liguo SUN Fangfang CHENG Jianbo HE Tengbing QIN Song FAN Chengwu YIN Wenfang

Institution:	1. College of Agriculture, Guizhou University, Guiyang 550025, China 2. Institute of New Rural Development, Guizhou University, Guiyang 550025, China 3. Guizhou Engineering Research Center for Technologies in Control and Recycling of Livestock and Poultry Breeding Waste in Mountain Area, Guiyang 550025, China 4. Institute of Soil and Fertilizer, Guizhou Academy of Agricultural Sciences, Guiyang 550006, China

Abstract:	In order to explore the effects of solid-digestate (SD) biochar application on soil nitrogen (N) leaching and cabbage yield with liquid-digestate irrigation in the karst-mountainous region of southwest China, a pot experiment was performed in a greenhouse to simulate liquid-digestate irrigation, and SD biochar was incorporated into either yellow soil or calcareous soil at the rates (mass fraction) of 0 (CK), 1% (BC1), 2% (BC2), 4% (BC4), and 6% (BC6), respectively.It was shown that no significant effects of biochar application on N leaching and cabbage N uptake were measured in yellow soil. However, in calcareous soil, the leaching of total nitrogen, $NH 4 +$ -N, $NO 3 -$ -N, and $NO 2 -$ -N were lowered by 12.06 kg·hm^-2 (equivalent to 35.89%), 11.82 kg·hm^-2 (equivalent to 52.99%), 1.14 kg·hm^-2 (equivalent to 25.53%), 0.103 kg·hm^-2 (equivalent to 23.25%), respectively, under BC6 treatment as compared with CK. The N uptake of cabbage was increased by 9.25-19.13 kg·hm^-2 with SD biochar application, and the highest N uptake was found in the BC6 treatment, which was 60.15 kg·hm^-2. The yield of cabbage was increased by 29.82%-68.78%, 23.58%-79.07% in the yellow soil and calcareous soil, respectively, and the highest yield in the yellow soil and calcareous soil was recorded under BC4 and BC6 treatment, respectively, which was 13.81, 9.01 t·hm^-2, respectively.

Keywords:	liquid-digestate irrigation soil-digestate biochar nitrogen leaching cabbage yield enzyme activity karst-mountainous region

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