首页|Effect of Phosphorus Fertilization to P Uptake and Dry Matter Accumulation in Soybean with Different P Efifciencies
Effect of Phosphorus Fertilization to P Uptake and Dry Matter Accumulation in Soybean with Different P Efifciencies
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国家科技期刊平台
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NSTL
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Phosphorus (P)is an essential element for plant growth and yield. Improving phosphorus use efficiency of crops could potentially reduce the application of chemical fertilizer and alleviate environmental damage. Soybean (Glycine max(L.) Merr.) is sensitive to phosphorus (P) in the whole life history. Soybean cultivars with different P efifciencies were used to study P uptake and dry matter accumulation under different P levels. Under low P conditions, the P contents of leaf in high P efifciency cultivars were greater than those in low P efifciency cultivars at the branching stage. The P accumulation in stems of high P efifciency cultivars and in leaves of low P efifciency cultivars increased with increasing P concentration at the branching stage. At the late podding stage, the P accumulation of seeds in high and low P efifciency cultivars were 22.5 and 26.0%, respectively; and at the mature stage were 69.8 and 74.2%, respectively. In average, the P accumulation in whole plants and each organ was improved by 24.4% in high P efifciency cultivars compared to low P efifciency cultivars. The biomass between high and low P efifciency cultivars were the same under extended P condition, while a signiifcant difference was observed at late pod iflling stage. At the pod setting stage, the biomass of high P efifciency cultivars were signiifcant greater (17.4%) than those of low P efficiency cultivars under high P condition. Meanwhile, under optimum growth conditions, there was little difference of biomass between the two types of cultivars, however, the P agronomic efifciency and P harvest index were signiifcant higher in high P efifciency cultivars than those in low P efifciency cultivars.
Glycine max (L.) Merr.soybeanphosphorus use efifciency
AO Xue、GUO Xiao-hong、ZHU Qian、ZHANG Hui-jun、WANG Hai-ying、MA Zhao-hui、HAN Xiao-ri、ZHAO Ming-hui、XIE Fu-ti
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College of Agronomy, Shenyang Agricultural University, Shenyang 110866, P.R.China
College of Land and Environment, Shenyang Agricultural University, Shenyang 110866, P.R.China
国家科技期刊平台
NSTL
万方数据
