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.
出处
《中国生态农业学报》
CAS
CSCD
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
关键词
长期定位施肥
潮土
有效硼
Long-term located fertilization,Fluvo-aquic soil, Available boron
