scholarly journals Simulating management effects on crop production, tile drainage, and water quality using RZWQM–DSSAT

Geoderma ◽  
2007 ◽  
Vol 140 (3) ◽  
pp. 297-309 ◽  
Author(s):  
S.A. Saseendran ◽  
L. Ma ◽  
R. Malone ◽  
P. Heilman ◽  
L.R. Ahuja ◽  
...  
Keyword(s):  
Water Quality ◽  
Crop Production ◽  
Tile Drainage ◽  
Management Effects

Management Effects on Barley Straw Decomposition, Nitrogen Release, and Crop Production

2002 ◽  
Vol 66 (3) ◽  
pp. 848 ◽  
Author(s):  
M. H. Beare ◽  
P. E. Wilson ◽  
P. M. Fraser ◽  
R. C. Butler
Keyword(s):  
Crop Production ◽  
Barley Straw ◽  
Nitrogen Release ◽  
Straw Decomposition ◽  
Management Effects

scholarly journals Some integrative management strategies to decrease doses of herbicides in agriculture

2017 ◽  
Vol 2 ◽  
pp. 31
Author(s):  
Salar Farhangi Abriz
Keyword(s):  
Water Quality ◽  
Food Safety ◽  
Nitrogen Content ◽  
Crop Production ◽  
Management Strategies ◽  
Agricultural Products ◽  
Main Target ◽  
Physicochemical Methods ◽  
Management Method ◽  
Integrative Management

<p>Over dose using of herbicides is one of the major problems in crops and horticulture productions. Human food safety and economical production of agricultural products are the main target of new agronomy and plant scientists. Integrative management is one of the new programs for reducing herbicide doses in agriculture. This program includes many physiological and physicochemical methods for controlling herbicide uses in farms and orchards. This article explain some of these methods such as using surfactants, water quality in spraying, using magnetic fields, controlling the nitrogen content of soil, using a suitable formulation and powerful cultivars and genotypes in agriculture and the effects of this reduction in herbicide doses on plants behavior and weeds controlling. According to this method integrative management can be beneficial in crop production and farmers must be using of this management method in their farms. </p>

scholarly journals Ground-Water Quality in Islamkot and Mithi Talukas of District Tharparkar, Sindh, Pakistan

2019 ◽  
Vol 38 (1) ◽  
pp. 143-150
Author(s):  
Jhaman Das Suthar ◽  
Inayatullah Rajper ◽  
Zia-ul- Hassan ◽  
Nizamuddin Depar ◽  
Velo Suthar
Keyword(s):  
Water Quality ◽  
Water Samples ◽  
Crop Production ◽  
Arid Regions ◽  
Salt Content ◽  
Water Bodies ◽  
Ground Water Quality ◽  
Desert Region ◽  
Remote Areas

Surface water supplies are gradually becoming short in arid and semi-arid regions of the world. Thus, assessment of groundwater quality for crop use appears to be very essential for management and utilization of precious natural water resources. This study reports the water quality of 52 hand pumps and one tubewell located in the most remote areas of desert region, viz. Islamkot and Mithi talukas of district Tharparkar. The water samples were collected during April 2016 (just before the start of rainy season). The water samples were analyzed for EC (Electrical Conductivity), pH, CO32-, HCO3-, Cl-, Ca2+, Mg2+ and Na+ concentration. The SAR (Sodium Adsorption Ratio) and RSC (Residual Sodium Carbonates) were estimated using their respective formula. The categorization of water samples based on their soluble salt content clearly revealed that the water bodies of majority (65%) of areas were hazardous, while 25% areas were marginal. Thus, only 11% water samples of the area under study had useable irrigation water. Because of SAR and RSC the majority (89 and 77%, respectively) of water samples were found to be free from the sodicity hazard. The study concluded that salinity, and not sodicity was the major threat to the area under irrigation with these water bodies. It is, therefore, suggested that the salinity tolerant crops and their genotypes may be used in this area to sustain crop production.

Simulated N management effects on corn yield and tile-drainage nitrate loss

Geoderma ◽  
2007 ◽  
Vol 140 (3) ◽  
pp. 272-283 ◽  
Author(s):  
R.W. Malone ◽  
L. Ma ◽  
P. Heilman ◽  
D.L. Karlen ◽  
R.S. Kanwar ◽  
...  
Keyword(s):  
Tile Drainage ◽  
Corn Yield ◽  
Nitrate Loss ◽  
N Management ◽  
Management Effects

scholarly journals A Carrot-and-Stick Approach to Environmental Improvement: Marrying Agri-Environmental Payments and Water Quality Regulations

2004 ◽  
Vol 33 (1) ◽  
pp. 91-104 ◽  
Author(s):  
Robert C. Johansson ◽  
Jonathan D. Kaplan
Keyword(s):  
Water Quality ◽  
Crop Production ◽  
Agricultural Sector ◽  
Simulation Analysis ◽  
Environmental Benefits ◽  
Large Animal ◽  
Animal Feeding Operations ◽  
Poultry Products ◽  
Water Quality Regulations ◽  
Environmental Quality Incentives Program

Agri-environmental programs, such as the Environmental Quality Incentives Program, provide payments to livestock and crop producers to generate broadly defined environmental benefits and to help them comply with federal water quality regulations, such as those that require manure nutrients generated on large animal feeding operations to be spread on cropland at no greater than agronomic rates. We couch these policy options in terms of agri-environmental “carrots” and regulatory “sticks,” respectively. The U.S. agricultural sector is likely to respond to these policies in a variety of ways. Simulation analysis suggests that meeting nutrient standards would result in decreased levels of animal production, increased prices for livestock and poultry products, increased levels of crop production, and water quality improvements. However, estimated impacts are not homogeneous across regions. In regions with relatively less cropland per ton of manure produced, the impacts of these policies are more pronounced.

scholarly journals Impacts of Brick Fields on Environment and Social Economy at Bagatipara, Natore, Bangladesh

2017 ◽  
Vol 9 (2) ◽  
pp. 31-34 ◽  
Author(s):  
MF Jerin ◽  
SK Mondol ◽  
BC Sarker ◽  
RH Rimi ◽  
S Aktar
Keyword(s):  
Water Quality ◽  
Crop Production ◽  
Skin Diseases ◽  
Social Economy ◽  
Economic Conditions ◽  
Crop Loss ◽  
Community Members ◽  
Respiratory Problems ◽  
Negative Impacts

This study investigated environmental and socio-economic impacts of brick fields at Bagatipara upazila of Natore district, Bangladesh. A questionnaire survey was conducted at selected community members living at or near brick field areas with aim to assess impacts of brick fields on air, water, soil, vegetation as well as socio-economic conditions. Findings of this study were based on randomly selected respondents’ perception on change of any resource or condition. Crop loss, decreased soil fertility and subsequent reductions in crop production were reported. Trees around brickfields were dusted badly and water quality of nearby water bodies deteriorated because of emerged dust and ash from brick fields. Noticeable negative impacts on aquaculture were found. Except few, majority of the respondents were suffering from various diseases like eye irritation, skin diseases and respiratory problems. Despite creating work opportunities for local people, brick fields of the study area adversely affected environment and social economy.J. Environ. Sci. & Natural Resources, 9(2): 31-34 2016

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