摘要
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。
Pot experiment was carried out to study the effects of soil pH and texture on B uptake by peanut and the variance of soil available B under the successive croping on 5 typical soils in main peanut cultivated areas of Guangdong province. Results show that soil pH increases significantly and the amount of B absorbed by plant decreases significantly, with the increase in times of croping. There is negatively significant correlation between soil pH and B accumulation in plant. Soil texture has apparent influence on B accumulation in plant. The effects of different particle size fractions of soils on B accumulation in plant are different. No significant relationship is shown between soil pH and soil available B, but soil texture has positively significant relation with soil available B.
出处
《土壤与环境》
CSCD
2000年第2期125-128,共4页
Soil and Environmental Sciences
基金
广东省自然科学基金项目(960537和980010)
