| Effect of different irrigation on phosphorus distribution in soil profiles of protected land |
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| DOI：10.7606/j.issn.1000-7601.2010.04.40 |
| Key Words: protected land water-saving irrigation soil phosphorus distribution |
| Author Name | Affiliation | | JIN Shuo | College of Land and Environment, Key Laboratory of Norheastemn Soil and Environment of Ministry of Agriculture，Shenyang ，Liaoning 110161, China | | ZHANG Yulong | College of Land and Environment, Key Laboratory of Norheastemn Soil and Environment of Ministry of Agriculture，Shenyang ，Liaoning 110161, China | | ZHANG Yuling | College of Land and Environment, Key Laboratory of Norheastemn Soil and Environment of Ministry of Agriculture，Shenyang ，Liaoning 110161, China | | HAN Lin | College of Land and Environment, Key Laboratory of Norheastemn Soil and Environment of Ministry of Agriculture，Shenyang ，Liaoning 110161, China | | WANG Jiao | College of Land and Environment, Key Laboratory of Norheastemn Soil and Environment of Ministry of Agriculture，Shenyang ，Liaoning 110161, China | | LIU Yang | College of Land and Environment, Key Laboratory of Norheastemn Soil and Environment of Ministry of Agriculture，Shenyang ，Liaoning 110161, China | | WEI Yanyan | College of Land and Environment, Key Laboratory of Norheastemn Soil and Environment of Ministry of Agriculture，Shenyang ，Liaoning 110161, China |
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| Abstract: |
| Different irrigation treatments were conducted to study the effects of the profile ditribution(0~100 cm)
and contents of total-P and Olsen-P in a l2-year tomato-grown protected land in the bases for scientific research of
shenyang agricultural university. Results showed that at the depth of 0 ~ 60 cm the contents of total-P and Olsen-P were significantly higher than the depth of 60 ~ 100 cm. Among these irigation treatments the profile distribution and contents of total P and Olsen-P displayed significant diference at the depth of 0~60 cm. Cenerally the contents of furrow imiga-tion and drip imigation were both higher than infiltration imigation but there were no differences between furrow irrigation
and drip imigation. At the depth of 0 ~ 40 cm the highest percent of Olsen-P fractions to total-P was drip imigation treat-ment. Compared with drip imrigation and infiltration imigation treatment, the ratio of Olsen-P to total-P showed unconspic-uous change along with the depth of soil profle in the furrow irmrigation treatment. The result of correlation analysis showed very significant positive correlation in the different irrigation treatment between total-P and Olsen-P and there were significant positive exponent correlation between Olsen-P and total-P with organic matter. |
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