Nutrient status and phytotoxicity analysis of goat manure discharged from farms in South Korea

ABSTRACT

The present study evaluated the phytotoxicity effect of goat manure (GM) collected from six different regions in South Korea, namely, Chupungnyeong (T1), Hoengseong (T2), Goesan (T3), Sancheong (T4), Jangsu (T5) and Namwon (T6). Phytotoxicity was assessed by means of the analysis of germination index (GI), relative seed germination (RSG), relative root elongation (RRE) and vigor index (VI) using five commercial crop varieties, namely, sesame (Sesamum indicum L.), chrysanthemum (Chrysanthemum indicum L.), carrot (Daucus carota), radish (Raphanus sativus) and cabbage (Brassica rapa). Physico-chemical parameter values were recorded at appreciable levels in all GM extracts. The effect of seedling growth was significantly different (p ≤ .05) due to the variability of nutrient content and phytotoxic effect of the extracts on the different crop seeds. Of the extracts, Goesan (T3) and Sancheong (T4) recorded the best results in the range of GI (%) (54.1–128.8) and VI (930.7–1044) and GI (%) (70.1–167.3) and VI (609.2–3034), respectively, and also showed no inhibitory effect in any of the crop seeds. Overall results also revealed that radish crops showed excellent and non-phytotoxic results in all manure extracts compared to the other crops.

KEYWORDS:

• Goat manure
• crop seeds
• nutrient quality
• phytotoxic effect
• germination index

Disclosure statement

No potential conflict of interest was reported by the authors.

Additional information

Funding

This work was carried out with the support of ‘Cooperative Research Program for Agriculture Science & Technology Development (Project title: Investigation of the use of efficiency of different organic manures in upland grassland, Project No. PJ010099022016)’ and was also supported by Postdoctoral Fellowship Program (2015–2016) of the National Institute of Animal Science (NIAS), Rural Development Administration (RDA), Republic of Korea.