贵州农业科学
貴州農業科學
귀주농업과학
GUIZHOU AGRICULTURAL SCIENCES
2015年
5期
120-124
,共5页
丁小艳%杨皓%陈海龙%王义%黄先飞%胡继伟%江帆
丁小豔%楊皓%陳海龍%王義%黃先飛%鬍繼偉%江帆
정소염%양호%진해룡%왕의%황선비%호계위%강범
喀斯特%刺梨%土壤%养分%盈亏分析%贵州
喀斯特%刺梨%土壤%養分%盈虧分析%貴州
객사특%자리%토양%양분%영우분석%귀주
karst%Rosa roxburghii%soil%nutrients%abundance and loss analysis%Guizhou
为了对喀斯特山区刺梨种植提供合理化施肥依据,以贵州毕节市黔西县、毕节市七星关区和黔南州龙里县3个刺梨种植基地的土壤样品为试验材料,采用相关文献及标准方法对贵州喀斯特山区刺梨种植基地表层土壤 pH、有机质、全氮、全磷、全钾、水解氮、有效磷及速效钾等进行测定,并对其土壤养分盈亏状况进行分析。结果表明:土壤 pH 平均为6.86,比较适宜刺梨生长;全磷和全钾含量分别为1.38 g/kg和16.40 g/kg,较为适宜;有机质含量较高,为96.80 g/kg;钠极丰富,为8.62 g/kg;全钙和全镁含量不足,分别为0.61 g/kg 和6.15 g/kg;氮极度缺乏,含量为0.16 g/kg。结论:施肥时应综合考虑各地土壤养分现状及不同时期树体对各种营养素的需求情况,保证各养分平衡与协调。该研究为系统评价刺梨种植基地土壤营养状况奠定了基础。
為瞭對喀斯特山區刺梨種植提供閤理化施肥依據,以貴州畢節市黔西縣、畢節市七星關區和黔南州龍裏縣3箇刺梨種植基地的土壤樣品為試驗材料,採用相關文獻及標準方法對貴州喀斯特山區刺梨種植基地錶層土壤 pH、有機質、全氮、全燐、全鉀、水解氮、有效燐及速效鉀等進行測定,併對其土壤養分盈虧狀況進行分析。結果錶明:土壤 pH 平均為6.86,比較適宜刺梨生長;全燐和全鉀含量分彆為1.38 g/kg和16.40 g/kg,較為適宜;有機質含量較高,為96.80 g/kg;鈉極豐富,為8.62 g/kg;全鈣和全鎂含量不足,分彆為0.61 g/kg 和6.15 g/kg;氮極度缺乏,含量為0.16 g/kg。結論:施肥時應綜閤攷慮各地土壤養分現狀及不同時期樹體對各種營養素的需求情況,保證各養分平衡與協調。該研究為繫統評價刺梨種植基地土壤營養狀況奠定瞭基礎。
위료대객사특산구자리충식제공합이화시비의거,이귀주필절시검서현、필절시칠성관구화검남주룡리현3개자리충식기지적토양양품위시험재료,채용상관문헌급표준방법대귀주객사특산구자리충식기지표층토양 pH、유궤질、전담、전린、전갑、수해담、유효린급속효갑등진행측정,병대기토양양분영우상황진행분석。결과표명:토양 pH 평균위6.86,비교괄의자리생장;전린화전갑함량분별위1.38 g/kg화16.40 g/kg,교위괄의;유궤질함량교고,위96.80 g/kg;납겁봉부,위8.62 g/kg;전개화전미함량불족,분별위0.61 g/kg 화6.15 g/kg;담겁도결핍,함량위0.16 g/kg。결론:시비시응종합고필각지토양양분현상급불동시기수체대각충영양소적수구정황,보증각양분평형여협조。해연구위계통평개자리충식기지토양영양상황전정료기출。
To provide basis for rational fertilization of R.roxburghii planting in the karst mountainous areas,soil samples were collected from Qianxi County and Qixingguan region in Bijie,Longli County in Qiannan,three R.roxburghii planting bases as experimental material.Using literature methods and standards of R.roxburghii, soil pH, organic matter, total nitrogen, total phosphorus, available phosphorus and potassium were determined,and the soil nutrient abundance and loss condition were analyzed.Results:Soil pH,with an average of 6.86,is more suitable for the growth of R.roxburghii;Total phosphorus and total potassium contents were respectively 1.38 g/kg and 16.40 g/kg,which were more appropriate;High content of organic matter,96.80 g/kg;Sodium is very rich,8.62 g/kg;Total Ca and Mg contents,respectively 0.61 g/kg and 6.15 g/kg;The nitrogen was starved,merely 0.16 g/kg. Conclusion:Fertilization should be considered in all soil nutrient status and the different periods of tree nutrient demand,ensure the nutrient balance and coordination.The research laid the foundation for the evaluation system of R.roxburghii cultivated soil nutrient status bases.