|Table of Contents|

Effect of Nitrogen Fertilizer on Photosynthetic Physiology and Dry Matter Accumulation of Soybean with Quality Genotypes(PDF)

《大豆科学》[ISSN:1000-9841/CN:23-1227/S]

Issue:
2010年02期
Page:
223-227
Research Field:
Publishing date:

Info

Title:
Effect of Nitrogen Fertilizer on Photosynthetic Physiology and Dry Matter Accumulation of Soybean with Quality Genotypes
Author(s):
XIE Fu-ti MA Zhao-hui ZHANG Hui-jun AO Xue WANG Hai-ying
Agronomy College of Shenyang Agricultural University, Shenyang 110866, Liaoning, China
Keywords:
Agronomy College of Shenyang Agricultural University Shenyang 110866 Liaoning China
PACS:
S565.1
DOI:
10.11861/j.issn.1000-9841.2010.02.0223
Abstract:
Six soybean cultivars of different quality genotypes were used to study the effects of N fertilizer on photosynthetic physiology and dry matter accumulation. The experiment was carried out by the split plot design in field. The results showed that as the growth and development of plant, the LAI, leaf greenness and leaf photosynthetic rate showed a single-peak curve, while the dry matter accumulation showed a typical “S” curve. There were significant effects on LAI, leaf photosynthetic rate and leaf greenness from the bloom stage to the beginning stage of grain-filling under the treatment of urea topdressing. The maximum and average rates of dry matter accumulation both existed a significant difference under the different fertilizer levels. Topdressing of N fertilizer made the maxmium rate of dry matter accumulation appeared earlier, especially for the high-protein genotype.

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