| Effects of dual mulching of film and straw on soil moisture and apple yield in Weibei Region |
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| DOI：10.7606/j.issn.1000-7601.2013.03.05 |
| Key Words: dual mulching film straw soil water soil temperature apple orchard yield |
| Author Name | Affiliation | | CHUAI Junfeng | College of Resources and Environment, Northuest A&F University, Yangling, Shaanxi 712100, China | | XIE Yongsheng | lnstitute of Soil and Water Conservation, Chinese
Academy of Sciences, Yangling, Shaanxi 712100, China | | SUO Gaidi | College of Resources and Environment, Northuest A&F University, Yangling, Shaanxi 712100, China | | YANG Yali | College of Resources and Environment, Northuest A&F University, Yangling, Shaanxi 712100, China |
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| Abstract: |
| To alleviate the problems of soil desiccation and the growth inhibition of apple roots by high soil tempera-ture
under summer mulching condition in apple orchards of Weibei
region, film mulching was combined with straw mulching to
preserve soil water and buffer high temperature. A comprehensive evaluation was conduced to evaluate four different dual mulching modes such as film over long wheat straw, long wheat straw over film, film over short wheat straw,
and film over maize straw, with respect to the aspects of moisture conservation, temperature adjusting and
mulching effects on apple yield. Results show mulching
treatment of film over short wheat straw, compared with other
treatments, inereased annually averaged water storage by 1 529.2 mm and annually averaged water content by 25.71% in
the 0~600 cm soil profile, which is beneficial to water
utilization by fruit trees. The mulching treatment of film over
short wheat straw inereased soil temperature in spring
and autumn but redueed soil temperature in summer, indicating a better effect ton buffering soil temperature. All these four mulching treatments showed improvement of apple yield, single fruit weight and optimal fruit rate.The mulching treatment of film over short wheat straw, having the highest single fruit
weight(48 kg)and optimal fruit rate(85%), was the best dual mulching mode. |
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