Phosphorus Characteristics with Controlled Nitrogen in Fertile Soils in Protected Vegetable Field
There is an unreasonable phenomenon of fertilization in vegetable facility cultivation, with the serious imbalance of soil nutrient. In purpose of understanding the absorption characteristics of phosphorus from nitrogen-rich soil, a long-term nitrogen-controlled experiment was carried from the year...
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Agro-Environmental Protection Institute, Ministry of Agriculture
2014-06-01
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doaj-1236d50893824880afd97c5ca84b788b2020-11-25T01:15:18ZzhoAgro-Environmental Protection Institute, Ministry of AgricultureJournal of Agricultural Resources and Environment2095-68192095-68192014-06-0131325325810.13254/j.jare.2013.0237Phosphorus Characteristics with Controlled Nitrogen in Fertile Soils in Protected Vegetable FieldWANG Heng0JIN Sheng-ai1LI Jun-liang2DONG Jia-gui3ZHANG Lan-fang4CHEN Wei-tang5GE Xiao-mei6Rizhao Agriculture Bureau, Rizhao 276826, China;Rizhao Agriculture Bureau, Rizhao 276826, China;Rizhao Agriculture Bureau, Rizhao 276826, China;Rizhao Agriculture Bureau, Rizhao 276826, China;Rizhao Agriculture Bureau, Rizhao 276826, China;Rizhao Agriculture Bureau, Rizhao 276826, China;Rizhao Agriculture Bureau, Rizhao 276826, China;There is an unreasonable phenomenon of fertilization in vegetable facility cultivation, with the serious imbalance of soil nutrient. In purpose of understanding the absorption characteristics of phosphorus from nitrogen-rich soil, a long-term nitrogen-controlled experiment was carried from the year 2004 to 2007, and a split plot experiment of leaching was carried in winter-spring season of 2007. The results showed that the content of phosphorus varied with different nitrogen control. The TP was decreased with nitrogen supply of none(NN) 、organic manure(MN) 、organic manure and straw(MN+S), and the decreased range was NN>MN>MN+S, meanwhile the increase range of TP was traditional-nitrogen(CN) >traditional-nitrogen+straw(CN+S) >optimized-nitrogen+straw(SN+S) >optimized-nitrogen(SN). The available P with CN and CN+S reached to 213.7 mg· kg -1 、225.4 mg·kg -1, which increased by 17.1 percent and 23.5 percent, which declared the phosphorus was accumulated; The available P with other nitrogen controlled decreased with the range of NN>MN>MN+S>SN+S>SN跃CN>CN+S, which showed that the supply reduction of nitrogen could slowdown the phosphorus accumulated and promote the utilization ratio of phosphorus. The organophosphorus was increased except NN, with obvious increase with CN、CN+S(308.4 mg·kg -1 、331.4 mg·kg -1 )by 28.5 percent and 38.2 percent. The absorption coefficient of phosphorus with SN+S(P 2 O 5,mg· 100 g -1 )reached to 1 571, increased by 143.6 percent; Otherwise the absorption coefficient of phosphorus with CN、CN+S showed negative growth, the CN dipped to 416(P 2 O 5,mg·100 g -1 )by 35.5 percent. Adding wheat straw could greatly improved the capacity of absorption of phosphorus and slow down the accumulation of available phosphorus to some extent. The concentrations of total phosphorus in the filtrate with SN+S were less than SN, contrary to the concentration of organophosphorus, thus the straw returning had a certain effect on stopping the organophosphorus leaching, the concentrations of total phosphorus in the filtrate was 2.62~12 mg·L -1, and the concentrations of organophosphorus was 0.42~4.12 mg·L -1, both of them exceeded the national security quality standards of water. Consequently, control-optimization supply of nitrogen in high fertile soil could promote the absorption and utilization of phosphorus, and had directive significance to guide famer’ s fertilization. Reducing the supply of nitrogen and returning the straw with high carbon are suggested to improve the utilization rate of fertilizer and reduce the pollution of nitrogen and phosphorus in soil and water bodies.http://www.aed.org.cn/nyzyyhjxb/html/2014/3/20140308.htmFacilitynitrogen controlledstrawphosphorusleaching |
collection |
DOAJ |
language |
zho |
format |
Article |
sources |
DOAJ |
author |
WANG Heng JIN Sheng-ai LI Jun-liang DONG Jia-gui ZHANG Lan-fang CHEN Wei-tang GE Xiao-mei |
spellingShingle |
WANG Heng JIN Sheng-ai LI Jun-liang DONG Jia-gui ZHANG Lan-fang CHEN Wei-tang GE Xiao-mei Phosphorus Characteristics with Controlled Nitrogen in Fertile Soils in Protected Vegetable Field Journal of Agricultural Resources and Environment Facility nitrogen controlled straw phosphorus leaching |
author_facet |
WANG Heng JIN Sheng-ai LI Jun-liang DONG Jia-gui ZHANG Lan-fang CHEN Wei-tang GE Xiao-mei |
author_sort |
WANG Heng |
title |
Phosphorus Characteristics with Controlled Nitrogen in Fertile Soils in Protected Vegetable Field |
title_short |
Phosphorus Characteristics with Controlled Nitrogen in Fertile Soils in Protected Vegetable Field |
title_full |
Phosphorus Characteristics with Controlled Nitrogen in Fertile Soils in Protected Vegetable Field |
title_fullStr |
Phosphorus Characteristics with Controlled Nitrogen in Fertile Soils in Protected Vegetable Field |
title_full_unstemmed |
Phosphorus Characteristics with Controlled Nitrogen in Fertile Soils in Protected Vegetable Field |
title_sort |
phosphorus characteristics with controlled nitrogen in fertile soils in protected vegetable field |
publisher |
Agro-Environmental Protection Institute, Ministry of Agriculture |
series |
Journal of Agricultural Resources and Environment |
issn |
2095-6819 2095-6819 |
publishDate |
2014-06-01 |
description |
There is an unreasonable phenomenon of fertilization in vegetable facility cultivation, with the serious imbalance of soil nutrient. In purpose of understanding the absorption characteristics of phosphorus from nitrogen-rich soil, a long-term nitrogen-controlled experiment was carried from the year 2004 to 2007, and a split plot experiment of leaching was carried in winter-spring season of 2007. The results showed that the content of phosphorus varied with different nitrogen control. The TP was decreased with nitrogen supply of none(NN) 、organic manure(MN) 、organic manure and straw(MN+S), and the decreased range was NN>MN>MN+S, meanwhile the increase range of TP was traditional-nitrogen(CN) >traditional-nitrogen+straw(CN+S) >optimized-nitrogen+straw(SN+S) >optimized-nitrogen(SN). The available P with CN and CN+S reached to 213.7 mg· kg -1 、225.4 mg·kg -1, which increased by 17.1 percent and 23.5 percent, which declared the phosphorus was accumulated; The available P with other nitrogen controlled decreased with the range of NN>MN>MN+S>SN+S>SN跃CN>CN+S, which showed that the supply reduction of nitrogen could slowdown the phosphorus accumulated and promote the utilization ratio of phosphorus. The organophosphorus was increased except NN, with obvious increase with CN、CN+S(308.4 mg·kg -1 、331.4 mg·kg -1 )by 28.5 percent and 38.2 percent. The absorption coefficient of phosphorus with SN+S(P 2 O 5,mg· 100 g -1 )reached to 1 571, increased by 143.6 percent; Otherwise the absorption coefficient of phosphorus with CN、CN+S showed negative growth, the CN dipped to 416(P 2 O 5,mg·100 g -1 )by 35.5 percent. Adding wheat straw could greatly improved the capacity of absorption of phosphorus and slow down the accumulation of available phosphorus to some extent. The concentrations of total phosphorus in the filtrate with SN+S were less than SN, contrary to the concentration of organophosphorus, thus the straw returning had a certain effect on stopping the organophosphorus leaching, the concentrations of total phosphorus in the filtrate was 2.62~12 mg·L -1, and the concentrations of organophosphorus was 0.42~4.12 mg·L -1, both of them exceeded the national security quality standards of water. Consequently, control-optimization supply of nitrogen in high fertile soil could promote the absorption and utilization of phosphorus, and had directive significance to guide famer’ s fertilization. Reducing the supply of nitrogen and returning the straw with high carbon are suggested to improve the utilization rate of fertilizer and reduce the pollution of nitrogen and phosphorus in soil and water bodies. |
topic |
Facility nitrogen controlled straw phosphorus leaching |
url |
http://www.aed.org.cn/nyzyyhjxb/html/2014/3/20140308.htm |
work_keys_str_mv |
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