Bamboo char for soil fertility improvement and nutrient uptake，yield，and quality in Brassica chinensis
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摘要: 采用大田试验研究了竹炭对红壤肥力和青菜Brassica chinensis产量、品质及养分吸收的影响。试验设置4个处理：处理1为对照（不施肥）；处理2为常规化肥，用量为复合肥（N∶P2O5∶K2O=15∶15∶15）2 000 kghm－2；处理3为竹炭，用量为2 250 kghm－2；处理4为竹炭和化肥配施，竹炭2 250 kghm－2，复合肥2 000 kghm－2结果表明：添加竹炭可以提高土壤酸碱度（pH值），提升土壤有机碳质量分数（P＜0.05），但对土壤有效氮、有效磷、有效钾无显著影响。同时，竹炭能提高青菜产量，与化肥配施效果更好。竹炭单施降低了青菜含氮量（P＜0.05），与化肥配施降低了磷钾利用率（P＜0.05）。竹炭处理的植株维生素C质量分数得到显著提高，但还原糖质量分数有所降低。图1表4参20Abstract: To study the effects of bamboo char on soil fertility improvement and on nutrient uptake，yield，and quality in Brassica chinensis，a field trial was conducted with four treatments: 1）control（no fertilizer）；2） compound fertilizer（N∶P2O5∶K2O = 15∶15∶15）2 000 kghm－2；3）bamboo char，2 250 kghm－2；and 4）a combination of bamboo char（2 250 kghm－2） and the compound fertilizer （2 000 kghm－2）. The treatments were arranged in a randomized block design with three replications. Plant shoots and soil samples in each plot were collected at harvest. Soil pH and soil organic carbon content in the bamboo char treatment were significantly（P＜0.05） higher than those in the compound fertilizer treatment. There were no significant differences between the concentrations of soil available N，P，and K among the treatments. Plant shoot yield and vitamin C concentration were significantly （P＜0.05） higher than the compound fertilizer treatment. ［Ch， 1 fig. 4 tab. 20 ref.］
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Key words:
- soil science /
- bamboo char /
- red soil /
- soil organic carbon /
- biochar /
- Brassica chinensis yield /
- Brassica chinensis quality
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链接本文:
https://zlxb.zafu.edu.cn/article/doi/10.11833/j.issn.2095-0756.2013.05.004
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