【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。更多还原

【Abstract】 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.更多还原