原创《甘蔗叶不同还田方式对土壤养分影响》：本论文主要论述了甘蔗论文范文相关的参考文献,对您的论文写作有参考作用。
摘 要 为减轻秸秆焚烧所带来的环境问题和充分利用甘蔗叶资源,在大田环境下动态监测甘蔗叶粉碎、焚烧和深埋3种还田方式对土壤养分的影响.结果表明：甘蔗叶粉碎还田和深埋还田有利于甘蔗叶中有机碳及氮、磷、钾养分的缓慢释放；甘蔗叶焚烧还田提高了土壤碱解氮含量5.6～20.9 mg/kg和速效磷含量0.8～4.0 mg/kg,促进土壤中氮磷向有效态转化,焚烧还田初期显著增加了土壤速效钾的含量12.3～18.3 mg/kg,但焚烧会損失部分甘蔗叶中碳氮元素,也造成环境污染.综合分析认为甘蔗叶粉碎还田是比较省工、方便的处理方式.
关键词 还田方式；土壤；甘蔗叶；有效养分
中图分类号 X712；S158.5 文献标识码 A
Effects of Different Returning Field Methods
on Soil Nutrient of Sugarcane Leaf
WEN Shaobai1,2, GE Chang3, LI Ming3, ZOU Yukun1, HOU Xianwen1 *
1 Environment and Plant Protection Institute, CATAS, Haikou, Hainan 571101, China
2 School of Tropical and Laboratory Medicine, Hainan Medical University, Haikou, Hainan 571199, China
3 Institute of agricultural machinery, CATAS, Zhanjiang, Guangdong 524091, China
Abstract In order to make full use of the sugarcane leaf resources and mitigate environmental problems brought by the straw burning, effects of three different sugarcane leaf returning field methods on soil nutrient were dynamically monitored. The results showed that it was helpful for the slow releasing of organic carbon, nitrogen, phosphorus, potassium with the methods of sugarcane leaf crushing returning and deeply burning to field. The method of sugarcane leaf burning and returning to the field increased the content of soil available potassium in the range of 12.3-18.3 mg/kg at the early state, improved the content of alkali-hydrolyzed nitrogen and available phosphorous in the range of 5.6-20.9 mg/kg and 0.8-4.0 mg/kg, respectively, and promoted the transformation of nitrogen and phosphorus in the soil to the effective state. However, sugarcane leaf burning and returning to the field caused the loss of carbon and nitrogen elements of sugarcane leaf and brought pollution to the environment. Comprehensive analysis showed that the leaf crushing and returning to field was the most labor saving and convenient method.
Key words Methods of returning to field； soil； sugarcane leaf； available nutrients
doi 10.3969/j.issn.1000-2561.2017.08.008
甘蔗（Saccharum officinarum L.）收获残留下来数量巨大的甘蔗叶,一般每公顷可产生6 000～10 500 kg（以15%蔗茎重计算）,除部分做饲料及粉碎还田外,国内外对其传统处理方式是直接田间焚烧,直接利用率不到20%.田间焚烧甘蔗叶时,可有效杀灭草籽、虫卵及病原菌等,防止下茬作物发生严重的病虫害,而且不需要成本投入[1].但焚烧甘蔗叶所带来的弊大于利,养分损失大,也严重污染空气环境.甘蔗叶中N、P、K含量丰富,是一种很好的有机肥源[1-2].如能充分利用好这部分蔗叶,有助于改善甘蔗地土壤结构和养分循环利用.
长期以来,人们针对秸秆还田问题进行了许多研究[3-5]；将农作物秸秆还田不仅可以减少生产投入,还可以维持土壤有机质含量、并提高土壤肥力和土壤生物活性[6-8].Giacomini等[9]研究表明,秸秆和土壤混合比覆盖处理更有利于土壤微生物繁殖和提高土壤活性有机碳含量.刘玲等[10]研究表明,土壤微生物对粉碎还田秸秆的腐殖化作用更强,对土壤有机碳、全氮和微生物碳/氮含量贡献最大.杨育川等[11]认为小麦留茬粉碎还田比焚烧和立茬更有利于提高作物产量.王囡囡等[12]认为秸秆心土还田对土壤地力提升效果比覆盖和焚烧的明显,更利于大豆增产.显然,作物秸秆的还田效果因方式和类型而差异很大.
甘蔗论文参考资料：
结论：甘蔗叶不同还田方式对土壤养分影响为关于甘蔗方面的论文题目、论文提纲、甘蔗糖蜜论文开题报告、文献综述、参考文献的相关大学硕士和本科毕业论文。
