| Effects of no\|tillage cultivation on water consumption, water use efficiency and yield of foxtail millet |
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| DOI：10.7606/j.issn81000-7601.2020.03.33 |
| Key Words: no\|till cultivation soil water consumption grain yield water use efficiency agronomic traits meteorological factors |
| Author Name | Affiliation | | LIU Pengcheng | Institute of Dry Farming, Hebei Academy of Agriculture and Forestry Sciences/Key Lab of Crop Drought Tolerance Research of Hebei Province, Hengshui, Hebei 053500,China | | YU Guohong | Institute of Dry Farming, Hebei Academy of Agriculture and Forestry Sciences/Key Lab of Crop Drought Tolerance Research of Hebei Province, Hengshui, Hebei 053500,China | | CUI Haiying | Institute of Dry Farming, Hebei Academy of Agriculture and Forestry Sciences/Key Lab of Crop Drought Tolerance Research of Hebei Province, Hengshui, Hebei 053500,China | | GUO Anqiang | Institute of Dry Farming, Hebei Academy of Agriculture and Forestry Sciences/Key Lab of Crop Drought Tolerance Research of Hebei Province, Hengshui, Hebei 053500,China | | DU Hong | Institute of Dry Farming, Hebei Academy of Agriculture and Forestry Sciences/Key Lab of Crop Drought Tolerance Research of Hebei Province, Hengshui, Hebei 053500,China | | HAO Hongbo | Institute of Dry Farming, Hebei Academy of Agriculture and Forestry Sciences/Key Lab of Crop Drought Tolerance Research of Hebei Province, Hengshui, Hebei 053500,China | | LI Mingzhe | Institute of Dry Farming, Hebei Academy of Agriculture and Forestry Sciences/Key Lab of Crop Drought Tolerance Research of Hebei Province, Hengshui, Hebei 053500,China |
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| Abstract: |
| This study was carried out for providing theoretical basis for no\|tillage direct seeding technology of foxtail millet in Heilonggang area by comparing the effects of direct no\|till and conventional rotary tillage seeding on water consumption, yield, and water use efficiency of foxtail millet at Shenzhou experimental station of Dry Farming Agricultural Research Institute of Hebei Academy of Agricultural and Forestry Sciences from 2011 to 2013.The results showed that:(1) Compared with the rotary tillage treatment, the change of water storage capacity in soil layer of 5 cm, 15 cm, and 100 cm under no\|tillage treatment significantly decreased in 2012. Compared with the rotary tillage treatment, the change of water storage amount in 25 cm and 35 cm of soil layers under no\|tillage treatment was significantly reduced in 2013. (2) Compared with rotary tillage treatment, foxtail millet yield under no\|tillage treatment significantly increased by 6.12% and 9.67% in 2012 and 2013, respectively. Water consumption decreased by 8.57% and 0.48%, and water use efficiency increased by 16.13% and 10.21%, respectively. (3) Multiple regression analysis of panicle length, panicle weight, panicle grain weight and yield showed that ear length was significantly positively correlated with yield (P≤0.01), and ear weight was significantly positively correlated with yield (P≤0.05). (4) There was a negative correlation between the average air temperatures during foxtail millet growth and development periods with the plant height of foxtail millet but positive correlation with the 1000-grain weight. The panicle length, panicle weight, and panicle grain weight were significantly positively correlated with sunlight duration and precipitation. The panicle length, panicle weight and panicle grain weight were negatively correlated with the wind speed during the period.In conclusion, compared with rotary tillage, no\|till cultivation increased grain yield by 7.90%, water consumption during the growth period was reduced by 4.29%, water use efficiency increased by 13.32%. As a result, under no\|tillage mode, it is beneficial to increase the yield of foxtail millet in the area with sufficient precipitation, sunlight, and moderate wind speed. |
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