PJB-2018-1639
Influence of application of different proportions of substrates and biogas slurry-based fertilizers on the growth and quality of purple rape – Brassica campestris L. SSP. Chinensis (L.) Hanelt
Juan Jiaxiang, Zhao Hong, Muhammad Khalid, Muhammad Bilal, Gao Zhaoliang, Huang Danfeng and Tang Dongqin
Abstract
Purple rape is a widely used leafy vegetable in china which exhibits an enormous nutritional value. In this study, different proportions and ratios of substrates, including turf as the main ingredient, coconut coir dust and perlite as raw substrate in combination with varying ratios of biogas slurry (BGS), were applied to cultivate purple rape. Several morphological, physiological and yield indexes were studied to provide an experimental background for more efficient growth of purple rape. Results revealed that the morphological attributes of treatment groups were found to be significantly (p<0.05) different from control groups, under different BGS ratios. Notably, T4-10 treatment in combination with 10% BGS, registered the highest total chlorophyll content. The highest plant fresh weight and aboveground fresh weight were recorded in T5-10 treatments. Proportions of compound substrates and slurry among different groups also exhibited marked effects on the biochemical parameters, and substantially improved the quality of purple. Overall results demonstrated that the T4 (turf: coir dust: perlite at a ratio of 2:4:2) in combination with 10% BGS exhibited the most significant positive effects. In conclusion, our findings may offer a new insight to the sustainable and productive organic agriculture.
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