长期定位施肥对土壤有效硼含量的影响  

Effects of long-term located fertilization on the available boron content of soil

作　　者：任顺荣[1] 邵玉翠[1] 高宝岩[1] 王德芳[1] 

机构地区：[1]天津市土壤肥料研究所,天津300192

出　　处：《中国生态农业学报》2006年第3期56-57,共2页Chinese Journal of Eco-Agriculture

基　　金：天津市科技攻关项目(91120803010);天津市财政局项目资助

摘　　要：试验研究长期定位施肥对土壤有效硼含量的影响结果表明，无肥、N、NP、NPK、N＋有机肥和N＋秸秆6个不同施肥处理0～20cm土层土壤有效硼含量与肥料定位研究年限呈r=0．8094～0．8847的正相关关系，且不同施肥处理土壤有效硼含量均增加，为试验基础数值的2．9-4．7倍。各处理土壤有效硼含量依次为N＋有机肥处理〉N、P配施处理〉N＋秸秆处理〉单施N肥处理〉N、P、K配施处理〉无肥处理。N、P、K配施处理在获得较高产量的同时，有效硼累积较少。耕作、施肥等是影响土壤有效硼累积的重要因素。The effects of long-term located fertilization on the available boron content of soil were studied. The results show that the available boron contents in 0 - 20cm soil layers of the six different fertilization treatments including N, NP, NPK, N ＋ organic fertilizer, N ＋ straw and no fertilizer show a direct correlation to the years of the localized fertilizer study with the coefficient r = 0. 8094 - 0. 8847. The different fertilization treatments all give an increased available boron contents, which are 2.9- 4.7 times of the basic values of the experiments, and come in the order of N ＋ organic fertilizer 〉 NP 〉 N ＋ straw〉 N 〉 NPK 〉 no fertilizer. Fertilization combined with NPK helps to win a relatively higher yield, in addition, less available boron is found to be accumulated. Farming and fertilization are the key factors affecting the accumulation of available boron in soil.

关 键 词：长期定位施肥 潮土 有效硼 

分 类 号：S158[农业科学—土壤学] S565.206.1[农业科学—农业基础科学]