| Effects of irrigation methods on soil moisture and fruit production of the pear orchard |
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| DOI：10.7606/j.issn.1000-7601.2012.01.11 |
| Key Words: pear irrigation soil moisture photosynthetic parameter yield fruit quality |
| Author Name | Affiliation | | SUN Jiliang | Pear Engineering Research Center, Nanjing Agricultural University, Nanjing, Jiangsu 210095, China | | LI Liulin | Pear Engineering Research Center, Nanjing Agricultural University, Nanjing, Jiangsu 210095, China | | TAO Shutian | Pear Engineering Research Center, Nanjing Agricultural University, Nanjing, Jiangsu 210095, China | | MIAO Yongchun | Department of Multicrop Farming Management, Suining, Jiangsu 221200, China | | CAO Huilian | Department of Multicrop Farming Management, Suining, Jiangsu 221200, China | | ZHANG Shaoling | Pear Engineering Research Center, Nanjing Agricultural University, Nanjing, Jiangsu 210095, China |
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| Abstract: |
| Furrow irrigation, ridge irrigation, drip irrigation, micro-sprinkler irrigation and non irrigation(CK) were performed to investigate the influences of different irrigation methods on soil moisture, photosynthesis, yield and fruit quality in pear orchard, to selecte the appropriate water-saving irrigation technology. The results showed that: (1) Micro-sprinkler irrigation led the highest soil moisture content in 0～60 cm soil layers, followed by drip irrigation, ridge irrigation, furrow irrigation and CK, micro-sprinkler irrigation’s water storage capacity was significantly higher than other irrigation methods; (2) The order of net photosynthetic rate performance was micro-sprinkler irrigation≥drip irrigation≥ridge irrigation＞furrow irrigation＞CK, which showed that micro-sprinkler irrigation treatment of pear leaf photosynthetic capacity was the strongest, followed by drip irrigation; (3) The yield of micro-irrigation was the best, followed by drip irrigation, compared with controls, yield per plant rised by 54.98% and 44.18%; (4) Besides, micro-sprinkler irrigation and drip irrigation could also raise the fruit quality, such as bigger fruit size, higher content of soluble solids and total soluble sugars, lower fruit firmness, lower content of acid and stone cell. It is concluded that, micro
-sprinkler irrigation can improve the soil moisture condition and increase the ability of photosynthesis and result in higher yield and fruit quality more significantly than others, which is an ideal water saving irrigation technology. |
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