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Potassium Fertilizer Application Increased the Accumulation of Potassium During Reproductive Stages in Different Parts of Vegetable Soybean(Glycine max L Merr)(PDF)

《大豆科学》[ISSN:1000-9841/CN:23-1227/S]

Issue:
2016年01期
Page:
91-95
Research Field:
Publishing date:

Info

Title:
Potassium Fertilizer Application Increased the Accumulation of Potassium During Reproductive Stages in Different Parts of Vegetable Soybean(Glycine max L Merr)
Author(s):
LIU Chang-kai1; 2;  ZHANG Qiu-ying2;  LI Yan-sheng2;  TIAN Bo-wen1; 2;  TU Bing-jie1; 2;  LIU Xiao-bing2
1. College of Natural Resources and Environment, Northeast Agricultural University，Harbin 150081，China；
2. Key Laboratory of Mollisols Agroecology/Northeast Institute of Geography and Agroecology，Chinese Academy of Sciences，Harbin 150081，China
Keywords:
Vegetable soybean;  Potassium accumulation;  Sucrose;  Soluble sugar
PACS:
-
DOI:
10.11861/j.issn.1000-9841.2016.01.0091
Abstract:
With normal rates of N and P fertilizers, we treated two vegetable soybeans Zhongkemaodou 1 and cv.121 with no potassium fertilizer (K0), 120 kg.ha-1K (K1) at seeding, 120 kg.ha-1K with additional foliar application of 30 kg.ha-1of K2SO4(K2), and investigated the dynamic of potassium accumulation in leaves, petioles, stalks, pods and seeds within 28-56 days after flowering respectively. The results showed that the potassium accumulation was characterized by K2＞K1＞K0 and seeds＞pods＞stalks. It was also found that the potassium accumulation declined with the reproductive processes in stems, leaves, petioles and pods, however potassium accumulation in seeds declined 28-42 days after flowering, but increased 42-49 days and then slightly declined. The potassium accumulation in various parts of vegetable soybeans could be increased by K fertilization, and could be further increased by additional foliar K application.

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Last Update: 2016-01-29