[1]XIE Yong,DU Jian-jun,LI Yong-sheng.Effects of Water Retaining Agent on Growth and Water Use Efficiency of Chinese Cabbage Under Substrate Culture[J].Research of Soil and Water Conservation,2008,15(04):228-230,233.
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Effects of Water Retaining Agent on Growth and Water Use Efficiency of Chinese Cabbage Under Substrate Culture
Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume:
15
Number of periods:
2008 04
Page number:
228-230,233
Column:
Public date:
2008-08-20
- Title:
- Effects of Water Retaining Agent on Growth and Water Use Efficiency of Chinese Cabbage Under Substrate Culture
- Keywords:
- water retaining agent; substrate; Chinese cabbage; photosynthesis characteristics; water use efficiency
- CLC:
- S157.4;S625.5
- DOI:
- -
- Abstract:
- The physical characteristics of the substrate were measured and the effects of water retaining agent (WRA) on photosynthesis characteristics and water use efficiency of Chinese Cabbage were stusied under different water treatments conducted the pot experiments. The results showed that the water holding capacity of the substrate was significantly increased along with the increase of WRA rates of application. As compared with control treatment (no addition of WRA), at the rates of 1,2,4,8 g WRA per liter of substrate, water holding capacity was increased by 16.35%, 34.00%, 61.29% and 135.16% respectively. And the bulk density was decreased by 3.61%, 5.37%, 9.42% and 14.64%, respectively. Under the water stress, when relative moisture content in the substrate was 60%, 80%,100% and the dosage of WRA was 2 g/L, as compared with control, photosynthesis characteristics and water use efficiency was increased as water stress became serious.
- References:
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1900-01-01