scholarly journals Tropical Fruit Wastes as an Organic Nutrient Sources for the Cultivation of Chlorella vulgaris and Haematococcus pluvialis

2021 ◽  
Vol 20 (2) ◽  
Author(s):  
Y.H. Tan ◽  
Y.J. Khoo ◽  
M.K. Chai ◽  
L.S. Wong
Keyword(s):  
Chlorella Vulgaris ◽  
Haematococcus Pluvialis ◽  
Tropical Fruit ◽  
Nutrient Sources ◽  
Organic Nutrient ◽  
Fruit Wastes

Optimization of organic nutrient sources for green gram (Vigna radiata L. Welczek) under rainfed conditions.

2017 ◽  
Vol 51 (05) ◽  
Author(s):  
Rambuatsaiha . ◽  
T. Gohain ◽  
Noyingthung Kikon
Keyword(s):  
Nutrient Management ◽  
Green Gram ◽  
Growth And Yield ◽  
Phosphate Solubilizing Bacteria ◽  
Yield Attributes ◽  
Available N ◽  
Nutrient Sources ◽  
Organic Nutrient ◽  
Combined Application ◽  
Rainfed Conditions

A field investigation was conducted during the kharif season of 2012 at the experimental farm of School of Agricultural Sciences and Rural Development, Nagaland University, Medziphema Campus, Nagaland. Sole and combined applications of different organic nutrient sources viz., FYM, vermicompost, pig manure, rhizobium and PSB (Phosphate Solubilizing Bacteria) were evaluated in order to optimize organic nutrient management for green gram under rainfed conditions. Results showed that the combined application of rhizobium + PSB + vermicompost @ 0.7 t/ha was found to be the most responsive nutrient management practice recording significantly higher crop growth and yield attributes and ultimately recording the highest seed and stover yields of 369 and 989 kg/ha respectively. Soil available N and K status after harvest as well as seed and stover NPK uptake was found to be significantly higher with combined application of organic manures viz., vermicompost and FYM along with biofertilizers rhizobium and PSB.

scholarly journals EFFECT OF INTEGRATED NUTRIENT MANAGEMENT ON NUTRIENT USE EFFICIENCY OF MAJOR NUTRIENTS: A REVIEW

2021 ◽  
Vol 21 (No 1) ◽  
Author(s):  
Barkha . ◽  
Ananya Chakraborty
Keyword(s):  
Crop Production ◽  
Nutrient Management ◽  
Nutrient Use Efficiency ◽  
Mineral Fertilizer ◽  
Utilization Efficiency ◽  
Nutrient Deficiencies ◽  
Nutrient Sources ◽  
Organic Nutrient ◽  
Nutrient Use ◽  
Use Efficiency

Nutrient use efficiency (NUE) is an important concept in the evaluation of crop production systems. With emerging nutrient deficiencies under intensive agriculture, there is a need to improve NUE. One of the approaches to enhance it is by judicious use of fertilizers (adequate rate, effective source, methods and time of application) as well as inclusion of organic manures. Organic nutrient sources are very effective but as their availability is not sufficient to meet the nutrient demand, we have to integrate both organic and inorganic sources of nutrients together in order to achieve higher NUE. Common measures of NUE include Partial Factor Productivity (PFP), Agronomic Efficiency (AE), Apparent Recovery Efficiency (RE), Physiological Efficiency (PE) and Internal Utilization Efficiency (IE). Mineral Fertilizer Equivalent (MFE) is another parameter that can be used to assess short term release of nutrients (mainly nitrogen) from organic nutrient sources

scholarly journals Assessment of Domestic Wastewaters as Potential Growth Media for Chlorella vulgaris and Haematococcus pluvialis

2022 ◽  
Vol 30 (1) ◽  
pp. 565-580
Author(s):  
Yeong Hwang Tan ◽  
Mee Kin Chai ◽  
Yang Kai Ooi ◽  
Ling Shing Wong
Keyword(s):  
Removal Efficiency ◽  
Chlorella Vulgaris ◽  
Nutrient Removal ◽  
Haematococcus Pluvialis ◽  
Biomass Concentration ◽  
Basal Medium ◽  
Domestic Wastewater ◽  
Chemical Compounds ◽  
Growth Media ◽  
Nutrient Removal Efficiency

Domestic wastewater contains chemical compounds that can be used as nutrients for microalgae. Removing these chemical compounds from wastewater by microalgae might help in reducing the operation cost of wastewater management while minimizing the cultivation cost for large-scale microalgae metabolite production. In this study, domestic wastewater collected from Indah Water Konsortium (IWK), Kuala Lumpur, Malaysia, was assessed as growth media for two types of microalgae, namely Chlorella vulgaris and Haematococcus pluvialis. The biomass growth and nutrient removal efficiency of total nitrogen (TN), total phosphorus (TP), and total ammonia (TAN) in different concentrations of diluted wastewater were measured. The results showed that biomass concentration (0.227 g/L), biomass productivity (0.029 g/L/day), and specific growth rate (0,284 d-1) yielded by C. vulgaris in 14 days of 80% wastewater were comparable to those microalgae grew in standard Bold’s Basal medium (BBM). Besides, C. vulgaris grew in 50% wastewater to remove TN, TP, and TAN with the highest removal efficiency (>88%). For H. pluvialis, the biomass concentration in all wastewater concentrations was lower than BBM. The removal efficiencies of TN and TP were lower than 55%, but more than 80% for removal efficiency of TAN in 50% and 80% wastewater. Hence, C. vulgaris has better growth performance and nutrient removal efficiency than H. pluvialis. These findings indicated that IWK domestic wastewater could be used as growth media for microalgae, especially C. vulgaris.

scholarly journals Exploring the Benefits of Organic Nutrient Sources for Crop Production and Soil Quality

2007 ◽  
Vol 17 (4) ◽  
pp. 422-430 ◽  
Author(s):  
Carl J. Rosen ◽  
Deborah L. Allan
Keyword(s):  
Soil Quality ◽  
Crop Production ◽  
Cropping Systems ◽  
Enteric Bacteria ◽  
Environmental Risks ◽  
Organic Production ◽  
Careful Examination ◽  
Nutrient Source ◽  
Nutrient Sources ◽  
Organic Nutrient

Consumer demand for organically grown produce has increased dramatically over the past decade, most likely because of the perceived benefits to the environment and human health. A major component of organic production is providing organic sources of nutrients to promote plant growth as well as sustain soil quality. Organic nutrition of plants can present opportunities and challenges to the grower. The primary objective of this article is to review scientifically based information dealing with the effects of organic nutrient sources on crop yields and quality, soil properties, and environmental risks. Effects of organic nutrient sources are often evaluated by comparison with conventional production, but this approach can be problematic because nutrient source may be confounded with many other cropping system components. Despite these drawbacks, a careful examination of the literature suggests the following conclusions. Soil quality is generally improved with application of organic nutrient sources, but careful management is required to avoid environmental risks of nitrate (NO3) leaching and phosphorus accumulation. Provided that nutrient supply is equal, yields with organic sources tend to be similar to those with inorganic sources. However, lack of available nitrogen (N) that is synchronous with plant demand often limits yields in organic cropping systems. Limited N availability and varied supply of other nutrients from organic sources may contribute to the differences sometimes observed in dry matter content, tissue NO3 and mineral concentration, vitamin C and other phytochemicals, and taste. Phytonutrient content also may be affected by differences in pest control strategies among cropping systems regardless of nutrient source. There is a slight, but significantly, increased risk of produce contamination by Escherichia coli and other enteric bacteria contamination on produce when organic nutrient sources are used, but if proper guidelines are followed, contamination with the lethal serotype O157:H7 does not appear to be a major concern. Appropriate management of organic inputs is critical to achieving potential benefits for crop production and soil quality.

Sign in / Sign up

Export Citation Format

Share Document