Improving Phosphorus Fertility in Tropical Soils through Biological Interventions
نویسندگان
چکیده
Astrid Oberson, Else K. Bünemann, Dennis K. Friesen, I.M. Rao, Paul C. Smithson, Benjamin L. Turner, and Emmanuel Frossard, Institute of Plant Sciences, Swiss Federal Institute of Technology, Zurich, Switzerland School of Earth and Environmental Sciences, University of Adelaide, Adelaide, Australia International Center for the Improvement of Maize and Wheat (CIMMYT) and International Q1 Fertilizer Development Center (IFDC), Ethiopia Tropical Soil Biology and Fertility Institute, International Center for Tropical Agriculture (CIAT), Colombia Q1 Berea College, USA Q1 Smithsonian Tropical Research Institute, Panama
منابع مشابه
Prehistorically modified soils of central Amazonia: a model for sustainable agriculture in the twenty-first century.
Terra Preta soils of central Amazonia exhibit approximately three times more soil organic matter, nitrogen and phosphorus and 70 times more charcoal compared to adjacent infertile soils. The Terra Preta soils were generated by pre-Columbian native populations by chance or intentionally adding large amounts of charred residues (charcoal), organic wastes, excrements and bones. In this paper, it i...
متن کاملInfluence of arbuscular mycorrhizal fungi in sugarcane productivity under semiarid tropical agro ecosystem in India
Impact of Arbuscular mycorrhizal fungi (AMF) in sugarcane productivity was assessed through a field experiment from plant and ratoon sugarcane in Tamil Nadu, India. Control, 12.5 and 18.75 kg ha-1 of AMF along with 75% and 100% of phosphorous application were triedas treatments. 18.75 kg ha-1 AMF applied plots showed significant difference in germination percentage, tiller number, internode...
متن کاملMolybdenum and Phosphorus Interact to Constrain Asymbiotic Nitrogen Fixation in Tropical Forests
Biological di-nitrogen fixation (N(2)) is the dominant natural source of new nitrogen to land ecosystems. Phosphorus (P) is thought to limit N(2) fixation in many tropical soils, yet both molybdenum (Mo) and P are crucial for the nitrogenase reaction (which catalyzes N(2) conversion to ammonia) and cell growth. We have limited understanding of how and when fixation is constrained by these nutri...
متن کاملIntegrating Scientific and Local Soils Knowledge to Examine Options by Context Interactions for Phosphorus Addition to Legumes in an Andean Agroecosystem
This research sought to link Andean soil knowledge and farmer categorization of soil fertility to soil science characterization of soils, and use these to understand the impacts of phosphorus (P) fertilization of legumes using rock phosphate and soluble P fertilizer in 17 smallholder-managed sites with varying soil properties. We found that farmer high/low categorization of soils corresponded t...
متن کاملFactors affecting the nutrient status of forest sites in a mountain watershed in Nepal
Soil and foliage samples were collected from 136 sample sites in forested areas of the Dhulikhel Watershed, Nepal. Analyses showed that the soils have small values for pH, base saturation, total nitrogen, carbon and available phosphorus. Sample sites were stratified on the basis of aspect and elevation, soil type, forest type and management and the strata were compared to determine the influenc...
متن کامل