不同氮磷钾肥配比的炭基肥料对小白菜品质的影响
毕业论文关键词：炭基肥；小白菜；品质
Effects of different NPK ratio of Biochar-based Fertilizer on the quality of Chinese cabbage
Abstract: By the same source of biochar mixed with chemicals, make different NPK ratio of biochar-based fertilizer for studying the greenhouse experiment to compare effects of different NPK ratio of biochar-based fertilizer on the quality of Chinese cabbage including nitrate content, soluble sugar and Vc content in cabbage. There were 5 treatments including NPK ratio 15-20-05, 20-10-10, 15-15-05 biochar-based fertilizer A and biochar-based fertilizer B, biochar-based fertilizer C. The N:P2O5:K2O ratio of Baierfu is 15-15-10.The NPK ratio of ordinary Jin Zhengda is 15-15-15 .The results show that the biochar-based fertilizer treatment can reduce the nitrate content of Chinese cabbage, increase the soluble sugar content, but biochar-based fertilizer C has the most significant effect. With ordinary fertilizer Jin Zhengda and Baierfu biochar-based fertilizer C treatment makes Chinese cabbage nitrate content reduce by 51.68% and 29.45% respectively and soluble sugar content increased by 31.12% and 26.65% respectively. But obvious difference was not found between the content of vitamin C. Therefore, biochar-based fertilizer C could reduce the pakchoi C nitrate content, increase the soluble sugar content effectively and can improve quality of Chinese cabbage.
Key words: Biochar-based Fertilizer; Chinese cabbage; Quality
目 录
摘要1
关键词1
Abstract1
Key words1
引言2
1 材料与方法2
1.1 试验时间、地点2
1.2 试验材料2
1.3 试验设计3
1.4 施肥与管理3
1.5 小白菜样品采集和测定3
1.6 数据分析3
2结果与分析3
2.1 炭基肥料施用对小白菜中硝酸盐含量的影响3
2.2 炭基肥料施用对小白菜中可溶性糖的影响4
2.3 炭基肥料施用对小白菜Vc含量的影响5
3 讨论 5
4 结论 6
5 前景展望6
致谢7
参考文献7
不同氮磷钾配比的炭基肥料对小白菜品质的影响
引言进入20世纪，化肥施用量在我国农业种植方面不断上升，据相关数据显示，2010年的化肥施用量达到了约5500万吨，约占世界化肥施用总量的30%，同时也使得我国成为化肥施用占比最大的化肥使用国[1]。尽管化肥施用量在不断增加，但目前存在的现状是我国许多地区的施肥标准并不是依据作物的需求规律来相应的进行肥料补给，而是采取习惯性的施肥模式，这就形成了化肥利用率较低的问题，化肥利用率的低下不仅造成了农业成本的提高和资源的浪费，而且还带来了土壤肥力降低，土壤板结，甚至引起了严重的水体富营养化等一系列的环境问题，因此提高肥料利用率、减少资源浪费与环境污染已成为我国农业生产和环境保护关注的重要问题。针对这些问题，我们很有必要寻找一种肥效高，有利于提高蔬菜的品质的生态肥料。