| Application of organic ecotype soilless culturing in greenhouse vegetable production of capsicum annuum in Hexi Corridor |
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| DOI：10.7606/j.issn.1000-7601.2016.02.33 |
| Key Words: culture of greenhouse vegetables organic cultural substrate capsicum annuum growth fruit quality |
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| Abstract: |
| A completely randomized design was implemented to investigate the effects of organic cultural substrate compositions on the growth, yield and fruit quality of Capsicum annuum in sunlight greenhouse with treatments including mushroom residue (A), mushroom residue, peat and corn stalks (B), mushroom residue, corn stalks and cinder (C), perlite and cinder (D), Vpeat∶Vcinder=3∶2 (CK1) as the control for soilless cultural substrate, and soil cultivation (CK2) as the control for cultivation mode. The results indicated that the treatment B (mushroom residue, peat and corn stalks) on the growth of C. annuum was the best among all treatments, which significantly increased the plant height by 16.6% and 11.0%, stem diameter by 24.2% and 18.8%, fruit-setting number per plant by 5.8 and 3.6, yield per plant by 0.67 kg and 0.31 kg, and plot yield by 9.4 kg and 7.2 kg, from CK1 and CK2 respectively. Additionally, the effect of treatment C (mushroom residue, corn stalks and cinder) was the second-best, which significantly increased the plant height by 19.6% and 24.5%, and plot yield by 6.0 kg. and 3.8 kg, from CK1 and CK2 respectively. Moreover, the treatments of B and C significantly improved the fruit quality of C. annuum, and the treatment B significantly increased the Vc content by 48.5% and 13.5%, soluble protein content by 23.3% and 10.9%, and reducing suger content by 27.7% and 12.2%, and the treatment C significantly increased the organic acid content by 16.4% and 10.6%, and soluble saccharide content by 14.3% and 10.0%, from CK1 and CK2 respectively. The results showed that the treatments of mushroom residue, peat and corn stalks (B), and mushroom residue, corn stalks and cinder (C) significantly promoted the growth of C. annuum and improved its fruits quality, which may be suitable for popularization and application in culturing greenhouse solanaceous vegetables. |
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