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毛竹冬笋Ca、Mg、Si含量动态变化及积累规律(PDF)

《南京林业大学学报(自然科学版)》[ISSN:1000-2006/CN:32-1161/S]

Issue:
2015年05期
Page:
106-110
Column:
研究论文
publishdate:
2015-10-20

Article Info:/Info

Title:
Dynamic changes and accumulation rule of Ca, Mg and Si contents in winter shoot of Phyllostachys edulis
Article ID:
1000-2006(2015)05-0106-05
Author(s):
SU Wenhui1 FAN Shaohui1* GUO Baohua1* FENG Huanying12 ZHAO Jiancheng1LIU Guanglu1
1. International Centre for Bamboo and Rattan, Key Laboratory on the Science and Technology of Bamboo and Rattan, Beijing 100102, China;
2. North China Forestry Experiment Center, Chinese Academy of Forestry, Beijing 102300, China
Keywords:
winter shoot of Phyllostachys edulis Ca Mg Si element accumulation
Classification number :
S718.3
DOI:
10.3969/j.issn.1000-2006.2015.05.017
Document Code:
A
Abstract:
Winter shoot is the first growing period of Phyllostachys edulis, and its nutrition has significant effect on the output and continuous productivity of bamboo stand. P. edulis stand in Huangshan District of Anhui Province was chosen and tested. Ca, Mg and Si contents and their dynamic accumulation in winter shoots were studied in this paper. The results showed that Ca and Mg contents increased and accumulated rapidly in the shoots as growing after sprouting, but Si contents trended to decrease in mid-term. Before winter shoot pushed the soil up and became spring shoot, Ca, Mg and Si accumulation had reached 51.67, 28.39 and 10.94 g/hm2, respectively. In order to discover the rule of Ca, Mg and Si dynamic accumulation accutately, models of three elements accumulation(Y, g)to shoot height(H, cm)and diameter(d, cm)were established and tested with single winter shoot which was growing from December to March of the next year with multiple linear stepwise regression, and the correlation coefficient of each model was above 0.85.

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Last Update: 2015-10-15