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取广东省花生主产区5种代表性土壤,在连续栽种的情况下,研究土壤pH和质地对花生植株硼的积累及土壤有效硼变化的影响。结果表明,随着栽种次数的增加,土壤pH值呈显著上升趋势,而花生植株的硼积累量则呈显著下降趋势,二者表现出极显著负相关。土壤质地明显影响植株硼的积累量,不同粒级的土壤颗粒对花生各茬硼积累量的影响存在差异。土壤pH值和土壤有效硼的相关不显著,而质地与土壤有效硼表现正相关,并达到极显著水平。
Five representative soils from peanut main producing areas of Guangdong Province were studied. Under continuous planting, the effects of pH and soil texture on the accumulation of boron and the change of soil available boron in peanut plants were studied. The results showed that the soil pH value increased significantly with the increase of planting times, while the boron accumulation of peanut plants showed a significant downward trend, showing a very significant negative correlation. Soil texture significantly affected the accumulation of boron in plants, and the effect of soil particles of different grain sizes on the accumulation of boron in peanut was different. The correlation between soil pH and soil available boron was insignificant, while the soil texture was positively correlated with soil available boron and reached extremely significant level.