耕作覆盖对宁南旱区土壤团粒结构及马铃薯水分利用效率的影响
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苗芳芳,勉有明,普雪可,吴春花,周永瑾,侯贤清
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Effects of Tillage with Mulching on Soil Aggregate Structure and Water Use Efficiency of Potato in Dry-Farming Area of Southern Ningxia
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MIAO FangFang,MIAN YouMing,PU XueKe,WU ChunHua,ZHOU YongJin,HOU XianQing
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表4 耕作覆盖对马铃薯产量和水分利用效率的影响
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Table 4 Effects of tillage with mulch on potato yield and water use efficiency
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耕作方式
Tillage method | 覆盖材料
Mulching material | 产量 Potato yield (kg·hm-2) | 水分利用效率 Water use efficiency (kg·hm-2·mm-1) | | 2014 | 2015 | 2016 | 2014 | 2015 | 2016 | | NT | BM | 25697.8c | 13550.9b | 9329.7c | 89.25b | 36.86b | 35.24b | | JM | 40781.0a | 15464.7a | 13902.9b | 134.05a | 39.83ab | 50.28a | | DM | 29752.4b | 15686.2a | 15716.3a | 90.00b | 41.00a | 54.71a | | ST | BM | 26899.8c | 15773.2c | 11515.9c | 90.98b | 41.02c | 41.42b | | JM | 38515.0a | 20076.6a | 17194.2a | 127.30a | 50.77a | 55.98a | | DM | 32276.0b | 17746.9b | 15407.7b | 96.11b | 45.68b | 52.86a | | CT | BM | 26864.7c | 14690.4c | 9171.4c | 89.06b | 39.21b | 34.49c | | JM | 36679.6a | 16278.6b | 10972.6b | 118.90a | 43.44a | 41.44b | | DM | 29333.3b | 16981.1a | 12238.2a | 88.61b | 44.19a | 46.93a | F
| T | 4.83ns | 33.21** | 41.06** | 5.24ns | 47.05** | 183.15** | | M | 266.92** | 115.34** | 56.74** | 206.56** | 36.99** | 112.53** | | T×M | 6.00** | 16.76** | 5.62** | 3.28* | 5.79** | 6.40** |
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