Effect of Channel Catfish Stocking Rate on Yield and Water Quality in an Intensive, Mixed Suspended-Growth Production System

2010 ◽  
Vol 72 (2) ◽  
pp. 97-106 ◽  
Author(s):  
Bartholomew W. Green
Keyword(s):  
Water Quality ◽  
Channel Catfish ◽  
Production System ◽  
Stocking Rate ◽  
Suspended Growth ◽  
Growth Production

Effect of ewe prolificacy potential and stocking rate on ewe and lamb performance in a grass-based lamb production system

2017 ◽  
Vol 95 (1) ◽  
pp. 154 ◽  
Author(s):  
E. Earle ◽  
N. McHugh ◽  
T. M. Boland ◽  
P. Creighton
Keyword(s):  
Production System ◽  
Stocking Rate

Sustainability of Rice Production at Baixo Mondego, Portugal

2022 ◽  
pp. 266-287
Author(s):  
Maria de Fátima Lorena Oliveira ◽  
Sergio Oliveira ◽  
António Terrão Russo ◽  
kiril bahcevandziev ◽  
Ana Bela M. Lopes ◽  
...  
Keyword(s):  
Water Quality ◽  
Production System ◽  
Water Demand ◽  
Irrigation System ◽  
Field Research ◽  
Field Trials ◽  
Rice Production ◽  
Wetting And Drying ◽  
Marketing Systems ◽  
Dry Soil

This chapter aims to analyze the rice production system at the Baixo Mondego Valley to understand the main concerns. Field research and field trials were carried out to analyze rice production, marketing systems, and different irrigation alternatives. An analysis on the worries was made, and a correlational attempt was done. The results show a production system oriented by agri-environmental policies. The problems related with rice irrigation are water scarcity, environmental impacts on water quality, agroecosystems, and methane emissions. To reduce water demand, the alternate wetting and drying flooding method, and the improvement of the precise land levelling were studied on the scope of MEDWATERICE Project. About 12-14% of water saving was observed, with impact on production lower than 3.5%, allowing period of 11-19 days of dry soil, expecting positive implications for greenhouse gas emissions. Innovation in the irrigation system may help to reduce some of the farmers' concerns and help to better adapt this crop to the new needs of agriculture in terms of environmental competitiveness.

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