Effects of Supplemental Irrigations under Different Stages on Soil Moisture and Water Use Efficiency of Film Mulching Potato
- Article
- Figures
- Metrics
- Preview PDF
- Reference
- Related
- Cited by
- Materials
Abstract:
In this study, the effetcs of supplemental irrigations under different stages on the soil water and water use efficiency of potato were analyzed. The potato was used as the indicator crop and a total of 5 treatments（T1, T2, T3, T4 and T5）were conducted, including T1 treatment of flat cultivation and no irrigation during the whole growth period, and T2 to T5 treatments of film punching on ridge and over furrow cultivation and irrigations under the sowing, seedling, tillering, and tuber expansion stages respectively. , The results indicated that the water consumption is significant in the 40-80 cm profile sections for the treatments of T4 and T-5, which is about 25.6 mm and 27.4 mm, respectively. From the aspect of yield and its components, the yield of T4 treatment reached 24984 kg.hm-2, and the yield per hectare of big potato and middle potato was 14490.7 kg, resulting in the highest commodity rate of all treatments. In terms of water use efficiency and irrigation water use efficiency, the treatments of T4 and T5 were the best. Overall, T4 treatment with supplemental irrigation under the tillering stage was one of the limited supplementary irrigation modes for water saving and yield increasing.
Keywords:
Project Supported:
Clc Number:
Mobile website
® 2024 All Rights Reserved
冀公网安备13010502002656号
冀公网安备13010502002656号