椰糠与珍珠岩不同配比对甜瓜幼苗质量的影响

doi:10.19640/j.cnki.jtau.2020.04.003

Journal of Tianjin Agricultural University ›› 2020, Vol. 27 ›› Issue (4): 12-15.doi: 10.19640/j.cnki.jtau.2020.04.003

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Effects of different coir dust to perlite ratio on quality of melon seedling

Ren Zhiyu, Wang Mengyi

College of Horticulture and Landscape, Tianjin Agricultural University, Tianjin 300392, China

Received:2020-08-20 Online:2020-12-31 Published:2020-12-25

Abstract

Abstract: Using thin skin melon cultivar ‘Boyang No. 9’ as the experimental material and 50% peat+50% vermiculite（volume: volume）as control, the physical and chemical properties of mixed substrate of different coir dust to perlite ratio and the effects of mixed substrate on seedling growth and seedling-raising effect were studied. The results indicated that pH of mixed substrate slightly increased, and all pH were more than that CK, but all pH were within suitable range; electrical conductivity decreased, but electrical conductivities of substrates with coir dust were still significantly higher than that of CK; bulk density decreased, and all bulk density were lower than that of CK, but all bulk density were within suitable range; large to small porosity ratio increased; seedling-forming rate increased; plant height, stem thickness, fresh and dry weight of shoot and root, chlorophyll content, root to shoot ratio and strong seedling index of seedlings cultured in substrates with coir dust firstly increased then decreased as increasing perlite; leaf number and leaf area decreased as amount of perlite into coir dust increased. 60% coir dust+40% perlite reached same seedling-raising effect as CK.

Key words: coir dust, perlite, ratio, melon seedling

CLC Number:

S626

Ren Zhiyu, Wang Mengyi. Effects of different coir dust to perlite ratio on quality of melon seedling[J]. Journal of Tianjin Agricultural University, 2020, 27(4): 12-15.

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Effects of different coir dust to perlite ratio on quality of melon seedling

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