| Effects of autumn covering on soil water storage and spring maize growth |
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| DOI：10.7606/j.issn.1000-7601.2013.03.03 |
| Key Words: autumn cover soil moisture spring maize growth |
| Author Name | Affiliation | | QIAO Lingzhi | Key Laboratory of Crop Physiology and ecology and Tillage in Northwestern loess Plateau, Minister of Agriculture,
Yangling, Shaanxi 712100, China
lnstitute of Water-saving Agriculture Research in Chinese Arid Areas,Northwest A & F Unitersity Engineering Laboratory of Crop Effectively Using Water in Arid Areas,Yangling,Shaanxi 712100,China | | WANG Junpeng | Key Laboratory of Crop Physiology and ecology and Tillage in Northwestern loess Plateau, Minister of Agriculture,
Yangling, Shaanxi 712100, China
lnstitute of Water-saving Agriculture Research in Chinese Arid Areas,Northwest A & F Unitersity Engineering Laboratory of Crop Effectively Using Water in Arid Areas,Yangling,Shaanxi 712100,China | | ZHANG Chun | Key Laboratory of Crop Physiology and ecology and Tillage in Northwestern loess Plateau, Minister of Agriculture,
Yangling, Shaanxi 712100, China
lnstitute of Water-saving Agriculture Research in Chinese Arid Areas,Northwest A & F Unitersity Engineering Laboratory of Crop Effectively Using Water in Arid Areas,Yangling,Shaanxi 712100,China | | HAN Qingfang | Key Laboratory of Crop Physiology and ecology and Tillage in Northwestern loess Plateau, Minister of Agriculture,
Yangling, Shaanxi 712100, China
lnstitute of Water-saving Agriculture Research in Chinese Arid Areas,Northwest A & F Unitersity Engineering Laboratory of Crop Effectively Using Water in Arid Areas,Yangling,Shaanxi 712100,China | | ZHANG Hui | Key Laboratory of Crop Physiology and ecology and Tillage in Northwestern loess Plateau, Minister of Agriculture,
Yangling, Shaanxi 712100, China
lnstitute of Water-saving Agriculture Research in Chinese Arid Areas,Northwest A & F Unitersity Engineering Laboratory of Crop Effectively Using Water in Arid Areas,Yangling,Shaanxi 712100,China | | JIA Zhikuan | Key Laboratory of Crop Physiology and ecology and Tillage in Northwestern loess Plateau, Minister of Agriculture,
Yangling, Shaanxi 712100, China
lnstitute of Water-saving Agriculture Research in Chinese Arid Areas,Northwest A & F Unitersity Engineering Laboratory of Crop Effectively Using Water in Arid Areas,Yangling,Shaanxi 712100,China | | YANG Baoping | Key Laboratory of Crop Physiology and ecology and Tillage in Northwestern loess Plateau, Minister of Agriculture,
Yangling, Shaanxi 712100, China
lnstitute of Water-saving Agriculture Research in Chinese Arid Areas,Northwest A & F Unitersity Engineering Laboratory of Crop Effectively Using Water in Arid Areas,Yangling,Shaanxi 712100,China |
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| Abstract: |
| To study the influence of mulching in autumn on soil moisture
and growth condition of spring maize, three different rates of straw mulching(straw mulching 3 000 kg·hm-2, straw mulching 6 000 kg·hm-2, straw mulching 9 000 kg·hmm-2)and two different patterns of plastic film mulehing(film mulehing and furrow-film mulching)were tested, no mulch eover treatment(CK)set as control.Results were as follows:except the 3 000 kg·hm-2straw mulching, compared with CK,soil water storage in the rest four treatments was inereased by 21.22 mm, 20.49 mm,18.37 mm and 19.5 mm respectively in the winter fallow period. Maize emergence time with these mulching methods was advanced 3 days earlier than CK. In the period between seeding and Full-grown stage(after sowing 70ds), soil water storages in film mulching and furrow-film mulching treatments were increased 15.57 mm and 15.73 mm, compared to CK; Soil water storages in straw mulching 6 000 kg·hm-2 and 9 000 kg·hm-2 treatments were increased 12.05 mm and 12.03 mm, compared to CK. In the late stage of com growth, soil water storage was higher in soils with muleh than in CK, but had no significant difference. Mulching in autumn promoted the individual growth of spring corn. Film mulching significantly enhanced dry matter per plant, plant height and leaf area in the early stage of corn growth,while straw mulching en-hanced corn growth in the late stage.By using film mulching and furrow-film mulching treatments, cor grain yield and water production efficiency were increased by 14.6%, 13.9%, and 11.0%, 11.1%(P<0.05), respecitively, while staw mulching method had no affect on corn yield. |
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