| The influence of different irrigation methods on greenhouse pepper growth and yield in the loess hilly regions of southern Ningxia |
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| DOI：10.7606/j.issn.1000-7601.2010.05.32 |
| Key Words: irrigation method greenhouse pepper hilly area of southern Ningxia |
| Author Name | Affiliation | | WANG Rui | Agriculture College, Ningxia University, Yinchuan, Ningxia 750021, China
College of Resources and Environment, Northwest A & F University, Yangling, Shaanxi 712100, China | | SUN Quan | Agriculture College, Ningxia University, Yinchuan, Ningxia 750021, China | | LI Jianshe | Agriculture College, Ningxia University, Yinchuan, Ningxia 750021, China | | ZHANG Yuanpei | Agricultural Bio-Technology Center, Ningxia Academy of Agriculture and Forestry Sciences, Yinchuan, Ningxia 750002, China |
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| Abstract: |
| An experiment was conducted to find out the impact of irrigation methods on greenhouse pepper growth and yield in the typical semiarid loess hilly regions of southern Ningxia. Under the condition of the normal growth of pepper, different periods and different irrigation volume were set to calculate the total irrigation volume and then measure the growth indicators and production. The results showed that: Under different modes of irrigation, pepper plant height, stem diameter and yield were significantly different. Under capillary drip irrigation, the plant height and SPAD were the largest; while under furrow irrigation under mulch, the plant height was the shortest and the stem diameter was the thickest. The yield of furrow irrigation under mulch was the highest and could save water by 50.3% compared with furrow irrigation, the following was emitter drip irrigation, while the yield under capillary drip irrigation was the minimum. Compared with furrow irrigation, the capillary drip irrigation and emitter drip irrigation technology could save water by 71.2% and 65.8%, and the water-saving efficiency was significant; the water-saving rate of furrow irrigation under mulch and on mulch was near 50%, and the water production cost efficiency was 850.5～1227 yuan/hm2. So drip emitter irrigation and furrow irrigation under mulch are suitable for greenhouse pepper in the loess hilly regions of southern Ningxia. |
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