scholarly journals Nutrient management for sustainable food crop intensification in African tropical Savannas

2021 ◽  
Author(s):  
Charles S. Wortmann ◽  
Zachary Stewart
Keyword(s):  
Nutrient Management ◽  
Food Crop ◽  
Tropical Savannas ◽  
Sustainable Food ◽  
Crop Intensification

scholarly journals Urban Organic Waste for Urban Farming: Growing Lettuce Using Vermicompost and Thermophilic Compost

Agronomy ◽  
2021 ◽  
Vol 11 (6) ◽  
pp. 1175
Author(s):  
Corinna Schröder ◽  
Franziska Häfner ◽  
Oliver Christopher Larsen ◽  
Ariane Krause
Keyword(s):  
Organic Waste ◽  
Nutrient Management ◽  
Nutrient Recycling ◽  
Mineral Fertilization ◽  
Urban Waste ◽  
Sustainable Food ◽  
Fertilizer Value ◽  
Sand Control ◽  
Lettuce Growth ◽  
Lettuce Yield

A transformation towards sustainable food production requires improved circular nutrient management. Urban organic waste contains relevant nutrients and organic matter, yet only 4% of global urban nitrogen (N) and phosphorus (P) sources are presently recycled. One recycling approach is the composting of urban wastes for urban horticulture. We characterized compost from various urban waste fractions and assessed their fertilizer value in a pot trial with lettuce plants. Seven treatments were investigated: food waste vermicompost with coir and paperboard bedding material, thermophilic compost from green waste and human feces, two references with mineral fertilization and a sand control. The lettuce yield and total uptake of P, potassium (K), calcium (Ca), and magnesium (Mg) were highest in plants grown in coir-based vermicompost. The fecal compost led to the highest shoot P and K content, but the shoot uptake of Ca and Mg were lower than in the other treatments. All composts required additional N for lettuce growth. In conclusion, urban waste-derived vermicompost and fecal compost demonstrate a high delivery rate of plant-available Ca, Mg, P, and K. Research is needed on macronutrient availability and alternative N sources for the substitution of synthetic fertilization. These findings support the production of urban waste composts, furthering efforts in nutrient recycling.

scholarly journals Building Integrated Agriculture: Utilising Rooftops for Sustainable Food Crop Cultivation in Singapore

2010 ◽  
Vol 5 (2) ◽  
pp. 105-113 ◽  
Author(s):  
Lim Yinghui Astee ◽  
Nirmal T Kishnani
Keyword(s):  
Carbon Footprint ◽  
Domestic Demand ◽  
Vegetable Production ◽  
Food Crop ◽  
Sustainable Food ◽  
Integrated Agriculture ◽  
Rooftop Farming ◽  
Food Imports ◽  
Context Specific ◽  
Housing Estates

Burgeoning population and rapid urbanisation have contributed to two challenges facing cities today: food security and an increasing carbon footprint due to food imports. This paper examines the viability of rooftop farming in urban centres in Asia. A context-specific exploration—sited in Singapore—looks at the challenges of building integrated agriculture. Findings suggest that Singapore's public housing estates are suitable for rooftop farming. Implemented nationwide, such a scheme could result in a 700% increase in domestic vegetable production, satisfying domestic demand by 35.5%. Reducing food imports would also decrease Singapore's carbon footprint by 9,052 tonnes of emissions annually.

scholarly journals The Legal Protection of Agricultural Land Sustainable Food in Mining Coal Area of East Kalimantan

2020 ◽  
Vol 5 (1) ◽  
pp. 36
Author(s):  
Haris Retno Susmiyati ◽  
Rahmawati Al-Hidayah
Keyword(s):  
Agricultural Land ◽  
Central Government ◽  
Large Population ◽  
National Level ◽  
Legal Protection ◽  
Food Crop ◽  
Agricultural Lands ◽  
Sustainable Food ◽  
Land Protection ◽  
East Kalimantan

The effort of fulfillment over people's food is a constitutional obligation of the State.  The development of an increasingly large population can threaten the existence of the tropical wet forest area when opening the land needs of food became imperative. As was the case in East Kalimantan, the area of food land is diminishing because over the function of the land are massive for coal mining and palm oil plantations. This will bring up the feared conditions insistence to open forest areas to agricultural land of food.  The Central Government has the authority to make the national policy while the local government is based on the provisions of Division of the authority of Government, have the authority to make policies related to land protection food crop sector ongoing in the area. This article would like to know (1) How is the legal content in the regulation regarding the protection of sustainable food crop lands at the national level; and (2) how is regional can make a regulation of the protection sustainable food crop lands. The method is used the legal research of normative, as well as by the method of analysis is  analytic descriptive. Based on the results of the study it was concluded that the regulation of sustainable food crops land protection at the national level has been set in full, but the content of legal protection, there is a weakness in political designation, which allows agricultural lands sustainable food converted as long as there is not determination as a sustainable agricultural lands. In other words, the provision in The Law No 41 Of 2009 On The Protection Of Land For Sustainable Food  Plantation, but in substance precisely open up opportunities for the occurrence over the function of the land. there is a regulation on the region level regarding legal protection one of them the Regional Regulation No 1 Of 2013 On The Protection Of Sustainable Agricultural Lands, but contain elements of weakness that requires a determination of the agricultural lands before protection While official functionary who is not determination agricultural location does not get strict sanctions. This is a weakness for the agricultural land which has not been established, although physically it is the agricultural land of food, but because there is no designation then will not be affordable by the regulation of the area.  

scholarly journals The Use of Freshwater Sapropel in Agricultural Production: A New Frontier in Kenya

2020 ◽  
Vol 2020 ◽  
pp. 1-7
Author(s):  
Sylvia I. Murunga ◽  
Eliud N. Wafula ◽  
Joseph Sang
Keyword(s):  
Agricultural Production ◽  
Crop Production ◽  
Nutrient Management ◽  
Organic Fertilizer ◽  
Climate Change Impacts ◽  
Weather Conditions ◽  
Environmental Conservation ◽  
Agricultural Crop ◽  
Soil Microbial Diversity ◽  
Sustainable Food

Opportunities for sustainable agriculture development in Kenya which heavily depends on healthy soil and soil microbial diversity can be found in the promotion of organic farming. The increasing populations, higher demands for animal and plant products, climate change impacts, and weather conditions necessitate novel ideas and technologies to try reverse the adverse effects of excessive use of inorganic fertilizers and to maximize the potential of the land. Sapropel, a promising biological deposit from freshwater lakes, has found its limelight in its use in agricultural crop production as a soil conditioner and biofertilizer. This could be an ultimate practice for sustainable food and energy production in Kenya. This review aims at presenting information in the literature about the potential use of the organic fertilizer based on sapropels in intensified crop production and their main effects on plant growth. It discusses soil fertility, the composition of sapropels, and their application and advantages in agricultural production. It is evident from the review that sapropel can be considered as a resource that is valuable with wide application possibilities in agriculture. Sapropel can present an important contribution to the solution of the conservation of the fertility of the soil for integrated nutrient management systems to maintain agricultural productivity and help in environmental conservation.

scholarly journals Innovative, sustainable, and circular agricultural systems for the future

2021 ◽  
Author(s):  
Gerold Rahmann ◽  
Khalid Azim ◽  
Irena Brányiková ◽  
Mahesh Chander ◽  
Wahyudi David ◽  
...  
Keyword(s):  
Food Security ◽  
Food Production ◽  
Social Impact ◽  
Nutrient Management ◽  
Food Culture ◽  
Agricultural Systems ◽  
Special Issue ◽  
Sustainable Food ◽  
Broad Array ◽  
Global Population

AbstractThis special issue presents the outcomes from “Designing sustainable and circular agricultural systems for the year 2100,” the joint scientific workshop of ISOFAR, the Thünen-Institute, and INRA-Morocco, which was held from November 14 to 16, 2019 in Marrakesh, Morocco. Nineteen scientists from a broad array of background and nationalities came together with the understanding that food security globally is at risk, especially in the post-2050 timeframe. Current concepts, strategies, measures, and scientific efforts carried out by governments, NGOs, businesses, and societies do not deliver satisfying solutions for how to sustainably produce enough healthy and affordable food to support the global population. With the economic and social impact of the Covid-19 pandemic in 2020, it became even more evident that food security is a challenge. This workshop took an innovative approach to addressing the challenges of future agriculture by considering sustainable, circular agricultural systems. Participants presented research results on algae-based food, edible insects, mushrooms, novel concepts for nutrient management, bioreactor-based farming, sustainable food culture, as well as sensor- and remote-controlled automatic food production. This special issue presents the papers contributed to the workshop and the results of the discussions.

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