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Genotypic differences in growth, yield and nutrient accumulation of spring wheat cultivars in response to long-term soil fertility regimes

文献类型： 外文期刊

作者： Wang, Yaosheng 1 ; Magid, Jakob 2 ; Thorup-Kristensen, Kristian 3 ; Jensen, Lars Stoumann 2 ;

作者机构： 1.Chinese Acad Agr Sci, Inst Environm & Sustainable Dev Agr, Beijing, Peoples R China

2.Univ Copenhagen, Plant & Soil Sci Sect, Dept Plant & Environm Sci, Frederiksberg C, Denmark

3.Univ Copenhagen, Crop Sci Sect, Dept Plant & Environm Sci, Taastrup, Denmark

关键词： Biomass;early vigor;nitrogen;phosphorus;root length

期刊名称：ACTA AGRICULTURAE SCANDINAVICA SECTION B-SOIL AND PLANT SCIENCE （ 影响因子：1.694； 五年影响因子：1.568 ）

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收录情况： SCI

摘要： Determining genotypic responses to soil fertility may assist selection of cultivars that can be adapted to varied soil fertility regimes, and such selection under field conditions is still limited. A two-year field experiment was conducted in long-term field trials to investigate wheat genotype effects on early growth, yield and nutrient accumulation as affected by varied long-term soil fertility managements and nitrogen (N) fertilization. Results show that the early growth, grain yield and nutrient accumulation of spring wheat plants were strongly affected by soil fertility managements and genotypes. Early shoot and root biomass of singly grown plants and leaf canopy growth under standard growth density was associated with subsequent grain yield of plants under standard growth density across the gradient in soil fertility levels. Taifun and Thasos had stable higher yield and N and phosphorus (P) uptake across varied soil fertility regimes compared with other genotypes. Okilde, however, increased yield by 8-34% and N and P accumulation by 1-22% only when grown in the high organic manure treatment compared with other genotypes, indicating that it is more adapted to high organic fertility regimes. Therefore, the different responses and adaptations of genotypes to soil fertility regimes should be included during selection of cultivars.

  • 相关文献

[1]Nutritional responses to soil drying and rewetting cycles under partial root-zone drying irrigation. Wang, Yaosheng,Wang, Yaosheng,Jensen, Christian R.,Liu, Fulai.

[2]Rhizosphere effects on soil microbial biomass size and turnover in a soil of high and low fertility. A. DE NEERGAARD,J. MAGID. 2001

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