scholarly journals Effects of Water Management Strategies and Nitrogen Fertilizer on Rice Yield Cultivated on Histosols

2021 ◽  
Vol 4 (1) ◽  
Author(s):  
Amgain Naba R ◽  
Rabbany Abul ◽  
Galindo Salvador ◽  
Bhadha Jehangir H
Keyword(s):  
Water Management ◽  
Nitrogen Fertilizer ◽  
Rice Yield ◽  
Management Strategies

scholarly journals Development of Irrigation Regime of Limited and Unlimited Water Supply for Satisfactory Rice Yield

2021 ◽  
Vol 4 (1) ◽  
pp. 1-6
Author(s):  
Dillip Kumar Swain ◽  
Keyword(s):  
Climate Change ◽  
Water Management ◽  
Water Availability ◽  
Rice Yield ◽  
Water Productivity ◽  
Management Strategies ◽  
High Water ◽  
Staple Food ◽  
Irrigation Regime ◽  
Different Levels

Rice is the staple food for majority of the population worldwide and is a water-consuming crop. Decreasing water availability due to climate change necessitates the development of water saving rice production technology. The objective of this study was to develop water management strategies for two contrast scenarios of water availability for improvement of rice yield with high water productivity. A pot experiment using different levels of water percentages for water management treatments in rice was conducted inside a greenhouse during the wet

Concepts and Practices for Improving Nitrogen Management for Vegetables

1992 ◽  
Vol 2 (1) ◽  
pp. 121-125 ◽  
Author(s):  
George J. Hochmuth
Keyword(s):  
Water Management ◽  
Management Practices ◽  
Management Strategies ◽  
N Fertilization ◽  
Nitrogen Management ◽  
Land Grant ◽  
Land Grant Universities ◽  
Production Practices ◽  
Negative Impacts ◽  
N Management

Efficient N management practices usually involve many potential strategies, but always involve choosing the correct amount of N and the coupling of N management to efficient water management. Nitrogen management strategies are integral parts of improved production practices recommended by land-grant universities such as the Institute of Food and Agricultural Sciences, Univ. of Florida. This paper, which draws heavily on research and experience in Florida, outlines the concepts and technologies for managing vegetable N fertilization to minimize negative impacts on the environment.

scholarly journals Cyanobacterial Abundance and Microcystin Profiles in Two Southern British Lakes: The Importance of Abiotic and Biotic Interactions

Toxins ◽  
2020 ◽  
Vol 12 (8) ◽  
pp. 503 ◽  
Author(s):  
David M. Hartnell ◽  
Ian J. Chapman ◽  
Nick G. H. Taylor ◽  
Genoveva F. Esteban ◽  
Andrew D. Turner ◽  
...  
Keyword(s):  
Water Management ◽  
Linear Regression Analysis ◽  
Management Strategies ◽  
Biotic Interactions ◽  
Cost Effective ◽  
Multiple Linear Regression Analysis ◽  
Tandem Mass ◽  
Recreational Waters ◽  
Cyanobacteria Blooms ◽  
Freshwater Bodies

Freshwater cyanobacteria blooms represent a risk to ecological and human health through induction of anoxia and release of potent toxins; both conditions require water management to mitigate risks. Many cyanobacteria taxa may produce microcystins, a group of toxic cyclic heptapeptides. Understanding the relationships between the abiotic drivers of microcystins and their occurrence would assist in the implementation of targeted, cost-effective solutions to maintain safe drinking and recreational waters. Cyanobacteria and microcystins were measured by flow cytometry and liquid chromatography coupled to tandem mass spectrometry in two interconnected reservoirs varying in age and management regimes, in southern Britain over a 12-month period. Microcystins were detected in both reservoirs, with significantly higher concentrations in the southern lake (maximum concentration >7 µg L−1). Elevated microcystin concentrations were not positively correlated with numbers of cyanobacterial cells, but multiple linear regression analysis suggested temperature and dissolved oxygen explained a significant amount of the variability in microcystin across both reservoirs. The presence of a managed fishery in one lake was associated with decreased microcystin levels, suggestive of top down control on cyanobacterial populations. This study supports the need to develop inclusive, multifactor holistic water management strategies to control cyanobacterial risks in freshwater bodies.

scholarly journals Water Management Strategies Against Toxic Microcystis Blooms In The Dutch Delta

2006 ◽  
Vol 16 (1) ◽  
pp. 313-327 ◽  
Author(s):  
Jolanda M. H. Verspagen ◽  
Jutta Passarge ◽  
Klaus D. Jöhnk ◽  
Petra M. Visser ◽  
Louis Peperzak ◽  
...  
Keyword(s):  
Water Management ◽  
Management Strategies ◽  
Microcystis Blooms ◽  
Dutch Delta

Urban water management strategies based on a total urban water cycle model and energy aspects – Case study for Tel Aviv

2011 ◽  
Vol 8 (2) ◽  
pp. 103-118 ◽  
Author(s):  
Tong Thi Hoang Duong ◽  
Avner Adin ◽  
David Jackman ◽  
Peter van der Steen ◽  
Kala Vairavamoorthy
Keyword(s):  
Water Management ◽  
Water Cycle ◽  
Management Strategies ◽  
Urban Water ◽  
Urban Water Management ◽  
Cycle Model ◽  
Tel Aviv ◽  
Energy Aspects ◽  
Urban Water Cycle

scholarly journals The Influence of Climate and Land-Cover Scenarios on Dam Management Strategies in a High Water Pressure Catchment in Northeast Spain

Water ◽  
2018 ◽  
Vol 10 (11) ◽  
pp. 1668 ◽  
Author(s):  
J. Zabalza-Martínez ◽  
S. Vicente-Serrano ◽  
J. López-Moreno ◽  
G. Borràs Calvo ◽  
R. Savé ◽  
...  
Keyword(s):  
Climate Change ◽  
Water Management ◽  
Land Cover ◽  
Water Pressure ◽  
Management Strategies ◽  
High Water ◽  
Climate Change Scenarios ◽  
Dam Management ◽  
Dam Inflow ◽  
Similar Decrease

This paper evaluates the response of streamflow in a Mediterranean medium-scaled basin under land-use and climate change scenarios and its plausible implication on the management of Boadella–Darnius reservoir (NE Spain). Land cover and climate change scenarios supposed over the next several decades were used to simulate reservoir inflow using the Regional Hydro-Ecologic Simulation System (RHESsys) and to analyze the future impacts on water management (2021–2050). Results reveal a clear decrease in dam inflow (−34%) since the dam was operational from 1971 to 2013. The simulations obtained with RHESsys show a similar decrease (−31%) from 2021 to 2050. Considering the ecological minimum flow outlined by water authorities and the projected decrease in reservoir’s inflows, different water management strategies are needed to mitigate the effects of the expected climate change.

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