摘要
对“Sahara”和“Clipper”2个大麦品种在不同P、Zn施肥水平下的生长、产量及P、Zn吸收量盆栽试验结果表明,当土壤缺Zn时,高P抑制作物生长,降低作物产量,出现类似于P中毒症状。随土壤P水平的增加,茎叶中P浓度急剧升高甚至接近毒害水平,而对Zn的吸收则下降,P-Zn交互作用显著。2个基因型大麦品种其生长及对Zn的吸收均表现显著差异。
The effects of different levels of phosphorus and zinc fertilizers on growth, production and nutrient absorption of two barley species (Sahara and Clipper) have been studied in growth chamber pot experiments. The results show that under the condition of Zn deficiency in soil the growth and production of the two barley species are reduced when phosphorus concentrations in the soil are higher and zinc are deficient. The concentrations of phosphorus in the barley shoots increase with the increase of phosphorus levels applied to the soil,but the concentrations of zinc in the shoots decline. High concentrations of phosphorus and low levels of zinc in the soil result in phosphorus toxicity in the barley strains. Higher levels of phosphorus result in decreased zinc levels in the barley shoots. There are distinct interactions between phosphorus and zinc in relation to the growth of the barley strains. Two barley species differ significantly with regard to growth and zinc absorption .
出处
《中国生态农业学报》
CAS
CSCD
2002年第4期51-53,共3页
Chinese Journal of Eco-Agriculture
基金
中国科学院知识创新工程项目(KZCX2-413-06)部分研究内容
