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Chinese Agricultural Science Bulletin ›› 2017, Vol. 33 ›› Issue (4): 80-84.doi: 10.11924/j.issn.1000-6850.casb16060035

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Effects of irrigation methods on soil surface evaporation and fruit productionof pear

  

  • Received:2016-06-07 Revised:2017-01-20 Accepted:2016-08-22 Online:2017-02-10 Published:2017-02-10

Abstract: In order to investigate the effects of different irrigation methods on water use efficiency and pear fruit quality, the experiment was carried on a 5-year-old commercial pear orchard at Yongnian campus of Hebei University of engineering in 2013. Four different surface irrigation methods including furrow irrigation (FI), border irrigation (BI), border irrigation covered with grass (BCI), and no irrigation with grass covered (NCI) were applied. The soil moisture, soil evaporation and fruit quality were measured. The results showed that there were significantly differences in soil water content under the different irrigation methods. The soil water content under BCI and FI were significantly higher than that under BI and NCI. The accumulative amount of soil evaporation under NCI, BCI, FI, and BI was 77.92, 114.64, 163.1, 203.73 mm from March to August, respectively. The surface evaporation was notably reduced under BCI and FI treatments than that of BI. The water use efficiency under FI with a value of 1.99 kg/m3 was significantly higher than that under BI and BCI treatments which was 1.45, 1.06 kg/m3, respectively. Meanwhile, fruit weight and fruit quality including soluble solids content, total soluble sugar and vitamin C content was significantly improvement under FI. Overall, FI is an ideal surface irrigation method not only for the water saving but also for the fruit quality.

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