Effects of Water Management, Arsenic and Phosphorus Levels on Rice Yield in High-Arsenic Soil-Water System

Rice Science ◽  
2014 ◽  
Vol 21 (2) ◽  
pp. 99-107 ◽  
Author(s):  
A.S.M.H.M. TALUKDER ◽  
C.A. MEISNER ◽  
M.A.R. SARKAR ◽  
M.S. ISLAM ◽  
K.D. SAYRE
2012 ◽  
Vol 80 ◽  
pp. 145-151 ◽  
Author(s):  
A.S.M.H.M. Talukder ◽  
C.A. Meisner ◽  
M.A.R. Sarkar ◽  
M.S. Islam ◽  
K.D. Sayre ◽  
...  

2011 ◽  
Vol 45 (6) ◽  
pp. 2086-2092 ◽  
Author(s):  
Yoko S. Shimamoto ◽  
Yoshio Takahashi ◽  
Yasuko Terada

2013 ◽  
Vol 295-298 ◽  
pp. 1927-1930
Author(s):  
Ke Bai Li

Established urban living water management model. With capital and labor as state variables, using the pole assignment robust control method, realize the urban living water system supply and demand balance tending to target value.


Heliyon ◽  
2021 ◽  
pp. e07217
Author(s):  
Amos Mwenda Ndeke ◽  
Jayne Njeri Mugwe ◽  
Hezron Mogaka ◽  
George Nyabuga ◽  
Milka Kiboi ◽  
...  

Land ◽  
2018 ◽  
Vol 7 (4) ◽  
pp. 133 ◽  
Author(s):  
Saskia Keesstra ◽  
Gerben Mol ◽  
Jan de Leeuw ◽  
Joop Okx ◽  
Co Molenaar ◽  
...  

In the effort to achieve the Sustainable Development Goals (SDGs) related to food, health, water, and climate, an increase in pressure on land is highly likely. To avoid further land degradation and promote land restoration, multifunctional use of land is needed within the boundaries of the soil-water system. In addition, awareness-raising, a change in stakeholders’ attitudes, and a change in economics are essential. The attainment of a balance between the economy, society, and the biosphere calls for a holistic approach. In this paper, we introduce four concepts that we consider to be conducive to realizing LDN in a more integrated way: systems thinking, connectivity, nature-based solutions, and regenerative economics. We illustrate the application of these concepts through three examples in agricultural settings. Systems thinking lies at the base of the three others, stressing feedback loops but also delayed responses. Their simultaneous use will result in more robust solutions, which are sustainable from an environmental, societal, and economic point of view. Solutions also need to take into account the level of scale (global, national, regional, local), stakeholders’ interests and culture, and the availability and boundaries of financial and natural capital. Furthermore, sustainable solutions need to embed short-term management in long-term landscape planning. In conclusion, paradigm shifts are needed. First, it is necessary to move from excessive exploitation in combination with environmental protection, to sustainable use and management of the soil-water system. To accomplish this, new business models in robust economic systems are needed based on environmental systems thinking; an approach that integrates environmental, social, and economic interests. Second, it is necessary to shift from a “system follows function” approach towards a “function follows system” one. Only by making the transition towards integrated solutions based on a socio-economical-ecological systems analysis, using concepts such as nature-based solutions, do we stand a chance to achieve Land Degradation Neutrality by 2030. To make these paradigm shifts, awareness-raising in relation to a different type of governance, economy and landscape and land-use planning and management is needed.


Author(s):  
P. Kumarathilaka ◽  
J. Bundschuh ◽  
S. Seneweera ◽  
A.A. Meharg

2013 ◽  
Vol 11 (2) ◽  
pp. 65 ◽  
Author(s):  
I.P. Wardana ◽  
A. Gania ◽  
S. Abdulrachman ◽  
P.S. Bindraban ◽  
H. Van Keulen

<p>Water and fertilizer scarcity amid the increasing need of rice production challenges today’s agriculture. Integrated crop management (ICM) is a combination of water, crop, and nutrient management that optimizes the synergistic interaction of these components aiming at improving resource use efficiency, i.e. high productivity of water, land, and labor. The objectives of the study were to investigate the effects of crop establishment method, organic matter amendment, NPK management, and water management on yield of lowland rice. Five series of experiments were conducted at Sukamandi and Kuningan Experimental Stations, West Java. The first experiment was focused on crop establishment method, i.e. plant spacing and number of seedlings per hill. The second, third, and fourth experiments were directed to study the effect of NPK and organic matter applications on rice yield. The fifth experiments was designed to evaluate the effect of water management on rice yield. Results showed that 20 cm x 20 cm plant spacing resulted in the highest grain yield for the new plant type rice varieties. Organic matter and P fertilizer application did not significantly affect grain yield, but the yield response to P fertilization tended to be stronger with organic matter amendment. Split P application did not significantly increase grain yield. The use of a scale 4 leaf color chart reading resulted in a considerable N fertilizer saving without compromising rice yield. Intermittent irrigation technique saved water up to 55% without affecting yields, resulting in a 2-3 times higher water productivity.</p>


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