|Table of Contents|

THE EFFECTS OF NITROGEN ON PHYSIOLOGICAL INDEXES OF DROUGHT TOLERANCE AND WATER USE EFFICIENCY IN SOYBEAN(PDF)

《大豆科学》[ISSN:1000-9841/CN:23-1227/S]

Issue:
2007年04期
Page:
517-522
Research Field:
Publishing date:

Info

Title:
THE EFFECTS OF NITROGEN ON PHYSIOLOGICAL INDEXES OF DROUGHT TOLERANCE AND WATER USE EFFICIENCY IN SOYBEAN
Author(s):
SUN Ji-yingGAO Ju-linLU Xiao-hong

Agronomy College,Inner Mongolia Agricultural University,Hohhot,010019
Keywords:
SoybeanNitrogenUseDrought toleranceWater use efficiency
PACS:
S565.1
DOI:
10.3969/j.issn.1000-9841.2007.04.013
Abstract:
In the paper,the physiological indexes for drought tolerance,WUE,yield and quality of soybean in different nitrogen use were studied.In the three treatments of nitrogen,which were 27 kg/hm2(N1),72 kg/hm2(N2),117 kg/hm2 (N3),the photosynthesis index and leaf water content of N2 were the highest,the chlorophyll content and proline content increased with the more nitrogen using,while the MDA and REC content deceased.The water use efficiency and yield of N2 were the largest,and next was N3,the N1was the smallest,the yield of N2 were 24.29% larger than N1,the water use efficiency of leaf,soil and rainfall in N2 were 6.22%,24.26% and 24.29% higher than N1.The crude protein content of seed was decreased with the more nitrogen using,while the P and crude fat content were increased,the crude protein content of N3 was 9.34% lower than N1,the P and crude fat content of N3was 29.25% and 23.49 lower than N1.In all,more nitrogen use can make up the harmless of dry to plant growth,improve the photosynthesis index,drought tolerance and WUE,and finally increase the yield and quality.But it was not suitable to much nitrogen use,otherwise,it can result in the negative effects.

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Last Update: 2014-10-20