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研究目的是为筛选适合陕西南郑烟区烤烟生产的蚯蚓粪与酒糟有机肥配比。试验采取随机区组设计,进行蚯蚓粪与酒糟6个配比(kg hm~(-2))(0+0、2400+0、1800+600、1200+1200、600+1800、0+2400)的大田试验。结果表明,蚯蚓粪1800 kg hm~(-2)与酒糟600 kg hm~(-2)效果较好,在圆顶期和成熟期,土壤容重分别较对照降低了13.5%和7.5%,土壤速效氮、速效磷、速效钾、有机质含量分别较对照提高了30.7%和41.2%、40.3%和42.2%、37.1%和22.2%、16.2%和17.1%;中部叶烟碱、总氮、钾及钾氯比分别比对照提高了8.6%、5.0%、3.4%和72.4%,氯和糖碱比分别比对照降低了40.0%和6.3%;上部叶烟碱和氯含量分别比对照降低了7.1%和37.5%,总氮、钾、氮碱比和钾氯比分别比对照提高了6.6%、9.9%、14.3%和65.7%。综合各处理土壤理化性质和烤烟品质,在南郑地区特殊生态条件下,烤烟种植以蚯蚓粪1800 kg hm~(-2)与酒糟600 kg hm~(-2)为宜。
The purpose of the study was to screen the suitable proportions of earthworm excrement and distiller’s grain organic fertilizer suitable for the production of flue-cured tobacco in Nanzheng tobacco area in Shaanxi Province. Randomized block design was adopted in this study. The ratio of earthworm excrement to distiller’s grain was 6 kg hm ~ (-2) (0 + 0,2400 + 0,1800 + 600,1200 + 1200,600 + 1800,0 + 2400) Field test. The results showed that 1800 kg hm -2 of vermicompost and 600 kg hm -2 of distiller’s grains were better, and the bulk density decreased by 13.5% and 7.5% respectively at the dome stage and the maturity stage. The contents of nitrogen, available phosphorus, available potassium and organic matter were increased by 30.7% and 41.2%, 40.3% and 42.2%, 37.1% and 22.2%, 16.2% and 17.1% Chlorine increased 8.6%, 5.0%, 3.4% and 72.4%, respectively, and the ratio of chlorophyll to nicotine reduced by 40.0% and 6.3%, respectively. The contents of nicotine and chlorine in the upper leaves decreased by 7.1% 37.5%, total N, K, N and K ratios increased by 6.6%, 9.9%, 14.3% and 65.7% respectively over the control. Combining with the physical and chemical properties of soil and the quality of flue-cured tobacco, it was found that 1800 kg hm -2 of vermicompost and 600 kg hm -2 of distiller’s grain should be planted under the special ecological conditions in Nanzheng region.