| Effects of the distance to drip pipe on moisture dynamics and water consumption characteristics of winter wheat |
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| DOI：10.7606/j.issn.1000-7601.2016.03.09 |
| Key Words: drip irrigation distance of drip irrigation pipe winter wheat water consumption characteristics yield |
| Author Name | Affiliation | | SHANG Jian | Shandong Key Laboratory of Dry Farming Technology, College of Agronomy and Plant Protection, Qindao Agricultural University, Qingdao, Shandong 266109, China | | ZHANG Yu-mei | Shandong Key Laboratory of Dry Farming Technology, College of Agronomy and Plant Protection, Qindao Agricultural University, Qingdao, Shandong 266109, China | | LIN Qi | Shandong Key Laboratory of Dry Farming Technology, College of Agronomy and Plant Protection, Qindao Agricultural University, Qingdao, Shandong 266109, China | | LIU Yi-guo | Shandong Key Laboratory of Dry Farming Technology, College of Agronomy and Plant Protection, Qindao Agricultural University, Qingdao, Shandong 266109, China |
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| Abstract: |
| In order to clear the suitble distance of drip pipe for wheat in the Jiaodong Area, set up 4 drip irrigation treatments in the field experiment, such as 1 pipe with 3 rows (T3, the distance of 54 cm), 1 pipe with 4 rows (T4, the distance of 72 cm), 1 pipe with 5 rows (T5, the distance of 90 cm), 1 pipe with 6 rows (T6, the distance of 108 cm), and using no irrigation as control (CK), researched the effects of different distance of drip pipe on water consumption and water use efficiecy(WUE) of winter wheat. The results indicated that: The drip irrigation was notable influences on soil moisture in 0～60 cm depth, can be notably reduced the consumption of soil water. For different drip treatments, the whole water consumption of winter wheat and soil water consumption expressed as T6＞T3＞T5＞T4，the whole water consumption of T6 in two years were 407.5 mm and 451.2 mm, respectively, notatble high than T4 treatment. In the dry year, the WUE of each treatment can be expressed as T5＞T4＞T6＞T3＞CK. In the normal year, the WUE of each treatment can be expressed as T5＞T4＞CK＞T6＞T3. The WUEs of T5 and T4 were total notable high than other treatments in two years, among them the WUE of T5 were 24.3 kg·hm-2·mm-1 and 19.2 kg·hm-2·mm-1, respectively. The suitable layout mode of the drip pipes can notably increase the effective spike numbers and 1000-grain weight of winter wheat. For the T5 treatment, the yield and economic benefit total were maximum in two years, the economic benefits in two years was reached 10976.35 yuan·hm-2 and 9802.56 yuan·hm-2, respectively. So the 1 pipe with 5 rows, the distance of 90 cm was the optimal layout distance of the drip pipes in Jiaodong Areas. |
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