Multi-objective economic-resource-production optimization of sustainable organic mixed farming systems with nutrient recycling

2018 ◽  
Vol 196 ◽  
pp. 304-330 ◽  
Author(s):  
Yingzong Liang ◽  
Chi Wai Hui ◽  
Fengqi You
Keyword(s):  
Nutrient Recycling ◽  
Farming Systems ◽  
Production Optimization ◽  
Economic Resource ◽  
Multi Objective ◽  
Mixed Farming

scholarly journals Nutrient Flows and Balances in Mixed Farming Systems in Madagascar

2022 ◽  
Vol 14 (2) ◽  
pp. 984
Author(s):  
Marie Lucia Fanjaniaina ◽  
Fabien Stark ◽  
Noelly Phostin Ramarovahoaka ◽  
Jeanny Fiononana Rakotoharinaivo ◽  
Tovonarivo Rafolisy ◽  
...  
Keyword(s):  
Crop Production ◽  
Nutrient Recycling ◽  
Nutrient Balance ◽  
Dairy Herd ◽  
Farming Systems ◽  
Sub Saharan Africa ◽  
Liquid Manure ◽  
Farm Level ◽  
Nutrient Flows ◽  
Mixed Farming

Mixed farming systems are still prevalent in sub-Saharan Africa. In these systems, the recycling of nutrients through crop-livestock integration (CLI) practices is crucial for the sustainability of soil fertility and crop production. The objective of this study was to analyze nutrient (N, P, K) flows and balances of mixed farming systems to assess CLI contribution to the performance of those systems. We hypothesized that more intensive farms had a better nutrient balance at the farm level, and that improved biomass management methods improved their nutrient balance. Nine farms in the Madagascar highlands were selected, some corresponding to poor traditional farms with only draft cattle; some small or medium-sized, more intensive farms with a dairy herd; and some of the latter with some improvement to management methods of livestock effluents (manure composting, liquid manure collection). The nutrient balance of the farming systems was determined, and performance indicators were calculated at both farming, livestock, and CLI levels. Results showed that nutrient recycling through CLI is significant in the functioning of the systems studied, contributing primarily to circulating nutrient flows (up to 76%) and leading to greater efficiency and productivity. Nutrient flows resulting from these practices mainly concerned animal feeding (higher than 60% of nutrient flows), even if manure management was central for crop fertilization and that manure remained a desired animal product of these types of farms (up to 100% of animal products). Large negative balances of N and K (up to 80% of inputs) were observed in traditional livestock systems with draft cattle. They were smaller (39–68%) in more intensive dairy farms. Composting of manure did not decrease negative balances, whereas their magnitude was significantly reduced by the collection of liquid manure (19% for N; 42% for K). Better management of biomass at the farm level, in particular the collection of liquid manure, seemed to substantially reduce nutrient losses in MFS.

Enhancement in productivity and income sustainability through Integrated farming system approaches for small and marginal farmers of Eastern India

2017 ◽  
Vol 4 (2) ◽  
Author(s):  
SANJEEV KUMAR ◽  
SHIVANI . ◽  
S. K. SAMAL ◽  
S. K. DWIVEDI ◽  
MANIBHUSHAN .
Keyword(s):  
Nutrient Recycling ◽  
Farming Systems ◽  
Fruit Trees ◽  
Farming System ◽  
Eastern Region ◽  
Net Income ◽  
System Productivity ◽  
Integrated Farming ◽  
Systems Models ◽  
The Cost

Integration of different components viz. livestock, fishery, horticulture, mushroom etc. along with field crops not only enhanced productivity but by-products (waste) of one component act as input for another component through resource recycling within the system. Six integrated farming systems models with suitable combinations of Crop, vegetables, fruit trees, fish, livestock, mushroom etc. were made and evaluated at the experimental farm of ICAR Research Complex for Eastern Region, Patna during 2012-16 for harness maximum income, nutrient recycling and employment. Among six combinations, crop + fish + duck + goat resulted as most profitable combination in terms of productivity (RGEY- 22.2t), net income (Rs. 2,15,900/ha), additional employment (170 days/year) with income sustainability index (ISI) by 90.2. Upon nutrient recycling prepared from different wastes from the system Crop + fish + duck + goat combination added N (56.5 kg), P (39.6 kg) and K (42.7 kg) into the soil and reduced the cost of cultivation by 24 percent and was followed by crop + fish + goat combination. Crops grown under IFS mode with different types of manures produced 31 percent higher yield over conventional rice- wheat system. The contribution of crops towards the system productivity ranged from 36.4 to 56.2 %, while fish ranged from 22.0-33.5 %; for goat 25.4-32.9 %; for poultry 38.7 %; for duck 22.0-29.0 %; for cattle 32.2% and for mushroom 10.3 %.

scholarly journals Ensemble-based hierarchical multi-objective production optimization of smart wells

2014 ◽  
Vol 18 (3-4) ◽  
pp. 449-461 ◽  
Author(s):  
R. M. Fonseca ◽  
O. Leeuwenburgh ◽  
P. M. J. Van den Hof ◽  
J. D. Jansen
Keyword(s):  
Production Optimization ◽  
Multi Objective ◽  
Smart Wells

Economic performance of small ruminants in mixed-farming systems of Southern Ethiopia

2010 ◽  
Vol 42 (7) ◽  
pp. 1531-1539 ◽  
Author(s):  
Getahun Legesse ◽  
Marianna Siegmund-Schultze ◽  
Girma Abebe ◽  
Anne Valle Zárate
Keyword(s):  
Economic Performance ◽  
Small Ruminants ◽  
Farming Systems ◽  
Southern Ethiopia ◽  
Mixed Farming

scholarly journals ASSESSING LIVESTOCK WATER PRODUCTIVITY IN MIXED FARMING SYSTEMS OF GUMARA WATERSHED, ETHIOPIA

2017 ◽  
Vol 54 (5) ◽  
pp. 684-698
Author(s):  
MENGISTU ALEMAYEHU ◽  
TILAHUN AMEDE ◽  
DON PEDEN ◽  
TESFAYE KUMSA ◽  
MICHAEL H. BÖHME ◽  
...  
Keyword(s):  
Smallholder Farmers ◽  
Water Productivity ◽  
Live Weight ◽  
Farming Systems ◽  
Assessment Method ◽  
Livestock Farming ◽  
Lower Altitude ◽  
Mixed Farming ◽  
Natural Pasture ◽  
Gumara Watershed

SUMMARYA monitoring study was carried out in Gumara watershed, upper Blue Nile basin, with the objective of evaluating livestock water productivity (LWP) using a life cycle assessment method. Sixty two smallholder farmers were selected for the study implemented between November 2006 and February 2008. Data on crop and livestock production were collected to allow assessment of livestock water productivity. Study sites were situated in three different rainfed mixed crop/livestock farming systems; barley/potato based system (BPS), tef/finger-millet based system (TMS), and rice/noug based system (RNS). LWP was found to be significantly lower (p < 0.01) in RNS (0.057 USD m−3 water) than in TMS (0.066 USD m−3 water) or in BPS (0.066 USD m−3 water). Notably, water requirement per kg live weight of cattle increased towards the lower altitude area (in RNS) mainly because of increased evapo-transpiration. As a result, 20% more water was required per kg live weight of cattle in the low ground RNS compared to BPS situated in the upstream parts of the study area. Cattle herd management that involved early offtake increased LWP by 28% over the practice of late offtake. Crop water productivity expressed in monetary units (0.39 USD m−3 water) was higher than LWP (0.063 USD m−3 water) across the mixed farming systems of Gumara watershed. Strategies for improving LWP, from its present low level, could include keeping only the more productive animals, increasing pasture productivity and linking production to marketing. These strategies would also ease the imbalance between the existing high livestock population and the declining carrying capacity of natural pasture.

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