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Effects of Shading-net Covering on Yield and Quality of Summer Pak-choi |
Gao Lihong; Ling Lijuan; Liu Jinglin; et al. |
Department of Horticulture; Nanjing Agricultural University; 210095 |
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Abstract Effects of different types of shading-nets under different culture systems on yield and quality of pak-choi were investigated in summers of 1992 and 1993. Results indicated that: in clear and hot summer of 1992, all covering treatments increased yield significantly, but in cool and raining summer of 1993, only grey-net covering, with 42%~45% shading on greenhouse,improved yield slightly. In two types of summer wheather, the seedling emergence rate was raised remarkably under shading net covering. Compared w...
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Received: 01 January 1900
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