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当前位置: 首页 > 文章 > 连续施石灰对作物生长及其养分吸收的影响 土壤学报 1987,24 (4) 343-351
Position: Home > Articles > EFFECT OF CONTINUOUS LIMING ON CROP GROWTH AND THEIR ABSORPTION OF NUTRIENTS Acta Pedologica Sinica 1987,24 (4) 343-351

连续施石灰对作物生长及其养分吸收的影响

作  者：
张效朴;郑根宝
单  位：
中国科学院南京土壤研究所
摘  要：
在浙江金华由红色粘土发育的酸性水稻土上,对稻—稻—大麦连续,次施石灰的试验结果表明,适量地施石灰可使大麦增产2—3倍,而水稻的反应一般不明显。对土壤和作物的测定显示,大麦增产的原因主要与石灰提高土壤pH,消除铝的毒害,提高磷肥有效性,促进根系发育,并显著增强大麦对磷、钾等养分吸收有关。但施石灰反而降低了水稻对磷素的吸收。因此,石灰一般宜用于大麦等旱作物。从产量、经济效益、消除铝毒及养分有效性诸因素综合考虑,对大麦的石灰用量以中和土壤pH至6.0左右为宜。但不论何种作物,连续大量地施石灰都是极不可取的。
译  名：
EFFECT OF CONTINUOUS LIMING ON CROP GROWTH AND THEIR ABSORPTION OF NUTRIENTS
作  者：
Zhang Xiaopu (Institute of Soil Science, Academia Sinica, Nanjing) Zheng Genbao (Institute of Agriculture Science, Jiangtang State Farm, Jinhua)
摘  要：
The data obtained from the experiment of continuous liming for three years under triple cropping system of rice—rice—barley on the paddy soil derived from Quaternary red clay indicated that liming increased the yield of barley in 2—3 times, but the respond of rice to liming was not obvious. The increase of yield of barley may be mainly related to the raising of pH value of acid soil, the elimination of Al-toxicity, the improvement of growing environment and availability of P-fertilizer as well as markedly promoting of the absorption of P and K by barley.However, due to strong of rice adaptability to soil acidity, liming will depress P-absorption of rice under submerged condition. Therefore, the lime should only be (?)pplied to some upland crops as barley. It is suggested that the amount of lime for barley should be applied to neutralize soil pH at about 6.0.In any case, (?)xcesively liming is undesirable.

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