Short-term effects of organic amendments on soil fertility and root growth of rubber trees on Hainan Island, China

Abstract

higher in the Fbi treatment. In contrast, soil bulk density in the F treatment was significantly higher than in treatments with the organic amendments (p < 0.05). When compared with the F treatment, soil root dry mass increased significantly by 190%, 176% and 33% in Fba, Fco and Fbi treatments, respectively (p < 0.05). Similar results were found for root activity, number of root tips, root length, root surface area and root volume. Conclusively, the application of bagasse, coconut husk and biochar increased soil fertility and promoted root growth of rubber trees in the short term. However, bagasse and coconut husk were more effective than biochar in improving root growth of rubber trees.

Optimizing integrated nutrient management for sustainable maize–sesame cropping in Gujarat Plains: A soil health perspective

“…This consistency in soil pH aligns with findings from a study by Huang et al. (2020) in Hainan island soils, China, where organic amendment application similarly resulted in nonsignificant changes in soil pH. The observed variations in soil pH due to FYM supplementation may be attributed to the oxidative processes of organic matter and the subsequent release of carbon dioxide into the soil, as reported by Liang et al.…”

Substitution of Inorganic Fertilizers with Organic Fertilizers Influences Soil Carbon and Nitrogen Content and Enzyme Activity under Rubber Plantation

“…China is the sixth-largest natural rubber producer globally, with a total output of 0.65 million metric tons, and Hainan Island is the primary site in China for natural rubber cultivation [14,15]. It is crucial that the use of inorganic fertilizers has resulted in significant soil nutrient depletion, reduced soil enzymatic activity, and land degradation in rubber plantations.…”