|Table of Contents|

Temporal spatial Distribution Characteristics of Soybean( Glycine max L.Merr.)Under Genotype fertilizer Interaction Condition(PDF)

《大豆科学》[ISSN:1000-9841/CN:23-1227/S]

Issue:
2014年03期
Page:
340-346
Research Field:
Publishing date:

Info

Title:
Temporal spatial Distribution Characteristics of Soybean( Glycine max L.Merr.)Under Genotype fertilizer Interaction Condition
Author(s):
YAN Chun-juan; SONG Shu-hong; SUN Xu-gang; WANG Wen-bin
Crop Institute of Liaoning Academy of Agricultural Science,Shenyang 110161,China
Keywords:
Temporal spatial distribution characteristics; Soybean; Genotype; Fertilizer
PACS:
S565.1
DOI:
10.11861/j.issn.1000-9841.2014.03.0340
Abstract:
Applying NPK fertilizer in different varieties to affect the physiology and structure of plant and influence the capacity of agroecosystem to capture light and convert that light energy into biomass,ultimately affecting productivity and yield in soybean(Glycine max L.Merr.).The objective of this study was to determine if fertilizers and genotypes had direct and interactive effects on temporalspatial distribution characteristics of soybean growing under field conditions.The results showed that LAI and shoot biomass gradually increased and then declined as a single peak curve with the growth and development of soybean.The maximum value of LAI appeared in the eighth weeks after emergence;Peak points of shoot biomass in Liaodou14 and Liaodou21 occurred at the 12th and the 14th weeks after emergence,respectively.NPK enhanced the average value of LAI for two varieties.Relative growth rate of all treatments started to decrease with the growth and development of soybean.Stem and leaf was mainly distributed in the lower part of plant and the middle and upper part of plant,respectively;petiole,pod and seed of soybean are mainly distributed in the middle part of plant.Chlorophyll meter values of the upper canopy and lower canopy were lower than that of the middle canopy.Although mean value of leaves SPAD in Liaodou21 was higher than that of Liaodou14,the sum of all leaves SPAD in Liaodou21 was lower than that of Liaodou14.NPK increased the mean value and the sum of leaves SPAD for both varieties.There were significant positive linear dependence between leaf area accumulation index LAIFand ln(IO/IF)for all treatments.Genotype and fertilizer had significant effects on yield in soybean.Compared with no fertilizer,NPK enhanced yield for two soybean cultivars,but Liaodou21 enhanced more than that of Liaodou14.NPK also increased plant height,main stem nodes and internode length.But Liaodou14 had significant higher yield than that of Liaodou21 regardless of fertilization application.Liaodou14 also showed consistently lower plant height,more main stem nodes,shorter internode length than that of Liaodou21,which may be contributed to reasonable plant type with high yield in soybean.

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Last Update: 2014-08-01