The effects of urine and urine-separated plant nutrient sources on growth and dry matter production of perennial ryegrass (Lolium perenne. L)

  title={The effects of urine and urine-separated plant nutrient sources on growth and dry matter production of perennial ryegrass (Lolium perenne. L)},
  author={Ntobeko Mchunu and Alfred Oduor Odindo and Pardon Muchaonyerwa},
  journal={Agricultural Water Management},
Abstract The use of urine, and urine-derived products can supplement chemical fertilisers. There is little information on the use of urine products in agriculture particularly in South Africa. A laboratory incubation experiment was conducted to determine effects of urine-derived sources on nitrogen (N) release in soil. A 5 × 2 factorial in a completely randomised design was used with two soils, differing in clay and carbon contents, and five nitrogen (N) sources; unamended control, urine… Expand
Root-Associated Bacterial Community Shifts in Hydroponic Lettuce Cultured with Urine-Derived Fertilizer
The root-associated bacterial community networks of K-struvite and NPK control fertilized plants displayed fewer nodes and node edges, suggesting that good plant growth performance does not require highly complex ecological interactions in hydroponic growth conditions. Expand
Sanitation and dewatering of human urine via membrane bioreactor and membrane distillation and its reuse for fertigation
Abstract Source separation and recovery of human urine have often been proposed as an effective way to achieve a more sustainable waste-to-resource cycle. Its high density of available macronutrientsExpand
Human urine-based fertilizers: A review
Urine contains most of the nutrients excreted by humans. They are mainly released into the environment and contribute to the strong disruption of planetary biogeochemical cycles. These nutrients co...
Aquaponics in South Africa: Results of a national survey
Abstract Aquaponic system is a productive, innovative and sustainable fish and vegetable production system that could contribute to the needed innovation in agriculture in the face of drought, soilExpand
Aquaponics model specific to South African conditions
Aquaponics is the integration of aquaculture (fish) and hydroponic culture (plants) as one system. Aquaponics requires a sound simultaneous understanding of two agricultural ecosystems (fish andExpand
Analysis of application of aquaponic system as a model of the circular economy: A review
Received 28 August 2020 Accepted 05 November 2020


An assessment of the effect of human faeces and urine on maize production and water productivity
Abstract The key challenge facing many catchment authorities in Zimbabwe and elsewhere is the challenge of feeding the growing populations within their catchment boundaries. Modern agriculturalExpand
Evaluation of human urine as a source of nutrients for selected vegetables and maize under tunnel house conditions in the Eastern Cape, South Africa
Generally the results showed that human urine compared well with urea as a source of N for crops but optimum rates depend on the sensitivity of the crops to soil salinity, which should be monitored where human urine is regularly used for fertilizing crops. Expand
Nitrogen Release Pattern From Organic Manures Applied to an Acid Soil
Study of nitrogen release pattern from organic manures is very essential to ensure nitrogen supply in adequate quantity and at proper time to crop plants in an acid soil. A laboratory incubationExpand
The Effect of Irrigation Method, Water-soluble Fertilization, Replant Nutrient Charge, and Surface Evaporation on Early Vegetative and Root Growth of Poinsettia
Rooted cuttings of 'Gutbier V-l 4 Glory poinsettia (Euphorbia pulcherrima Willd. ex Klotzsch) were grown in 15- cm pots using two irrigation methods, two water-soluble fertilization schedules, andExpand
Low-cost struvite production using source-separated urine in Nepal.
Calculations showed that collecting the struvite and calcium phosphate precipitated spontaneously due to urea hydrolysis could increase the overall phosphate recovery by at least 40% and could be important to optimize the process. Expand
The effect of root temperature on the uptake of nitrogen and the relative size of the root system in Lolium perenne. I. Solutions containing both NH+4 and NO3−
The results indicate the importance of relative root size in determining ion fluxes at the root surface and at higher temperatures where the root system was relatively large, ‘ demand’ per unit root was low, whereas at low temperatures roots were small relative to shoots and ‘demand’ was high enough to offset the inhibitory effects of low temperature on transport processes. Expand
Urine processing for efficient nutrient recovery and reuse in agriculture
Recycling of nutrients between urban areas and farmland is a critical step towards an ecologically sustainable development. Human urine is the most nutrient-abundant part among the domestic wasteExpand
Incubation experiments on nitrogen mineralization in loess and sandy soils
It was indicated that the amount of mineralizable nitrogen in the resistant N-fraction depended directly on clay content, and variation of type and quantity of added residues changed the net N-mineralization in a characteristic way. Expand
Human urine - Chemical composition and fertilizer use efficiency
Stored human urine had pH values of 8.9 and was composed of eight main ionic species (> 0.1 meq L−1), the cations Na, K, NH4, Ca and the anions, Cl, SO4, PO4 and HCO3. Nitrogen was mainly (> 90%)Expand
Complete nutrient recovery from source-separated urine by nitrification and distillation.
The ammonium nitrate content of the solid residue is below the limit at which stringent EU safety regulations for fertilizers come into effect; nevertheless, the primary energy demand can be reduced to values very close to conventional treatment, if 80% of the water is removed with reverse osmosis and distillation is operated with vapor compression. Expand