西藏自治区小康示范村土壤养分状况及效益分析

建设小康示范村是西藏自治区实现全面小康的合理选择。文章以山南地区为研究对象,采集土壤样品并以常规方法分析了琼结县下水村、乃东县昌珠村、桑日县吉荣村、扎囊县孟嘎如村等小康示范村土壤养分含量,研究了养分指标之间以及与农作物能量的关系,结果如下:土壤养分含量具有总体上为中等偏下、全量养分低磷中氮富钾、速效养分高磷中氮、钾,但速效磷含量变幅大的特点;相关分析和回归分析表明各养分指标中除全K含量和pH外,其余养分指标间相关系数均达到了0.01极显著性水平,具有极显著的直线相关性;表层土壤养分含量在一定范围内与农作物能量值具有较强的一致性。最后,提出了研究区土壤施肥的一些建议。

Soil Nutrients and its Benefits of Welloff Village in Tibet

It is reasonable choice of constructing "Xiao Kang" Village in Tibet in this paper Lhoka is used as a case, and soil nutrients of samples from Xiashui village of Chong-Gye County, Changzhu village of Nedong county, Jirong village of Sangri county, and Menggaru village of Danang county were analysed using routine methods and the relations between nutrients as well as with crop energy were also studied. The results showed that: (1) soil nutrients are wholly of middle level with low partial, the total nitrogen content is low and phosphor middle and kalium abundant, while the quick nitrogen and kalium content are middle and phosphor abundant; (2) except total kalium content and pH, the other nutrients are correlated and regressed each other at 0. 01 signification level; (3) nutrients of top-soils are consistent well with crop energy within certain range. The countermeasures of fertilization in study area are also given at last.