Effects of poultry manure on soil solution electrical conductivity and early growth of Monochoria vaginalis

Abstract

We investigated the effect of poultry manure (PM) on the occurrence and early growth of Monochoria vaginalis in relation to soil solution electrical conductivity (SSEC). PM was applied at rates corresponding to 0 g of nitrogen (N) m −2 (PM-0), 1 g N m −2 (PM-1), 3 g N m −2 (PM-3), and 5 g N m −2 (PM-5). At 7 d post-seeding, the soil solution was sampled to measure EC, and also the emergence and growth of M. vaginalis were evaluated. The emergence rate of M. vaginalis decreased with increasing application rate of PM and SSEC. SSEC was significantly negatively correlated with the emergence rate of M. vaginalis seedlings. The average leaf number and length of M. vaginalis did not differ between PM-0, PM-1, and PM-3, but were significantly lower in PM-5. In summary, PM would allow to better control the emergence and early growth of M. vaginalis.

Effects of Integrated and Organic Management on Strawberry (cv. Camarosa) Plant Growth, Nutrition, Fruit Yield, Quality, Nutraceutical Characteristics, and Soil Fertility Status

“…However, the addition of Activit to the soil increased its electrical conductivity (EC) above the critical value of 4 mS cm −1 . Watanabe et al [50], in evaluating the effect of chicken manure on soil conductivity, found that the use of chicken manure stimulated the buildup of soluble salts in the soil, as was also demonstrated in our study.…”

“…Similar results have been reported by other researchers, who attributed the differences found among organic sources to the different induction of soil enzyme activities, soil microbial community composition, soil plant hormone concentration, nutrient use efficiency, etc. [50][51][52][53][54].…”