广西河池烟区土壤肥力特征分析
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摘要
对河池烟区具有代表性的826个土壤样品的pH值、有机质、阳离子交换量、全氮、全磷、全钾和速效氮、有效磷、速效钾等指标进行分析,结果表明:河池烟区土壤pH值总体适宜,少部分土壤偏碱性;有机质、全氮和速效氮含量较为丰富;阳离子交换量处于中等至偏低水平;全磷、全钾和有效磷、速效钾含量偏低;不同县份之间土壤肥力特征差异较为明显。针对河池烟区土壤肥力特征,烤烟种植应适当降低氮肥用量,补充磷肥和钾肥用量,并通过改进施肥方式,提高土壤磷素和钾素有效供应能力。
The indexes of soil fertility of 826 soil samples collected from Hechi district were analyzed.The results showed that the pH value of most soils was in suitable range and high level was found in some soils;the contents of organic matter,total nitrogen and available nitrogen in soils were rich,cation exchange capacity(CEC) of most soils was in suitable and some low level was found in some soils;high deficiency ration of total phosphors,total potassium and available phosphors,available potassium was found;soil fertility characteristics showed significant variation in different counties.Based on the above analysis of fertility characteristics,the suggestions were inducted that application amount of nitrogenous fertilizer should be reduced appropriately while application amount of phosphate fertilizer and potash fertilizer should be increased,the methods of fertilizer application should be optimized to improve supply ability of phosphors and potassium in soils.
The indexes of soil fertility of 826 soil samples collected from Hechi district were analyzed.The results showed that the pH value of most soils was in suitable range and high level was found in some soils;the contents of organic matter,total nitrogen and available nitrogen in soils were rich,cation exchange capacity(CEC) of most soils was in suitable and some low level was found in some soils;high deficiency ration of total phosphors,total potassium and available phosphors,available potassium was found;soil fertility characteristics showed significant variation in different counties.Based on the above analysis of fertility characteristics,the suggestions were inducted that application amount of nitrogenous fertilizer should be reduced appropriately while application amount of phosphate fertilizer and potash fertilizer should be increased,the methods of fertilizer application should be optimized to improve supply ability of phosphors and potassium in soils.
引文
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[2]张国显,邸慧慧,王延晓,等.土壤肥力对烤烟不同部位中性香气成分含量的影响[J].土壤,2011,43(1):101-106.
[3]李敏.广东烟区土壤养分状况与烟叶品质的关系研究[J].安徽农业科学,2009,37(2):699-700,752.
[4]秦松,刘大翠,刘静,等.土壤肥力对烟叶化学成份及品质的影响[J].土壤通报,2007,38(5):901-905.
[5]李章海,王能如,王东胜,等.不同生态尺度烟区烤烟香型风格的初步研究[J].中国烟草科学,2009,30(5):67-70,76.
[6]鲁如坤.土壤农业化学分析方法[M].北京:中国农业出版社,2000.
[7]李酉开.土壤农业化学常规分析方法[M].北京:科学出版社,1983.
[8]尹永强,何明雄,邓明军.土壤酸化对土壤养分及烟叶品质的影响及改良措施[J].中国烟草科学,2008,29(1):51-54.
[9]赵松义,肖汉乾.湖南植烟土壤肥力与平衡施肥[M].长沙:湖南科学技术出版社,2005:10-11.
[10]胡国松,郑伟,王震东.烤烟营养原理[M].北京:科学出版社,2000:25-40.
[11]张琪,方海兰,黄懿珍,等.土壤阳离子交换量在上海城市土壤质量评价中的应用[J].土壤,2005,37(6):679-682.
[12]黄昌勇.土壤学[M].北京:农业出版社,2000:164-165.
[13]宋彦君,苏兆俊,彭成林,等.保康县植烟土壤的主要肥力特征初探[J].湖北农业科学,2003,11(1):53-55.
[14]李志宏,徐爱国,龙怀玉,等.中国植烟土壤肥力状况及其与美国优质烟区比较[J].中国农业科学,2004,37(S):36-42.
[15]罗建新,石丽红,龙世平.湖南主产烟区土壤养分状况与评价[J].湖南农业大学学报(自然科学版),2005,31(4):376-380.
[16]罗光,徐茜,蔡海洋,等.南平烟区土壤的肥力状况[J].福建农林大学学报,2005,34(4):523-526.
[17]冯勇刚,石俊雄,戚源明,等.贵州省植烟土壤主要养分普查[J].贵州农业科学,2004,37(S):57-62.