Long-Term Effects of Irrigation Water Conservation on Crop Production and Environment in Semiarid Areas

2001 ◽  
Vol 127 (6) ◽  
pp. 331-338 ◽  
Author(s):  
Asad Sarwar ◽  
W. G. M. Bastiaanssen
Keyword(s):  
Irrigation Water ◽  
Water Conservation ◽  
Crop Production ◽  
Long Term Effects ◽  
Semiarid Areas

scholarly journals Long Term Effects of Ploughing and Conservation Tillage Methods on Earthworm Abundance and Crumb Ratio

Agronomy ◽  
2020 ◽  
Vol 10 (10) ◽  
pp. 1552 ◽  
Author(s):  
Igor Dekemati ◽  
Barbara Simon ◽  
Igor Bogunovic ◽  
Ivica Kisic ◽  
Katalin Kassai ◽  
...  
Keyword(s):  
Water Content ◽  
Water Conservation ◽  
Conservation Tillage ◽  
Soil Tillage ◽  
Long Term Effects ◽  
No Till ◽  
Cover Ratio ◽  
One Year ◽  
Tillage Methods

In addition to the dry (D) and rainy (R) seasons, a combination of the two i.e., rainy-dry (RD) and dry-rainy (DR), can also be observed in one year. The effects of the dry (D) and rainy (R) on soil are known, hence we hypothesized that the effects of the rainy-dry (RD) and dry-rainy (DR) periods on soil may differ from the former assessments. The aim of the study is to investigate the effect of six tillage treatments (ploughing—P, disk tillage—DT, loosening—L, tine tillage (a deeper—T and a shallower—ST) and no-till—NT) on earthworm abundance and crumb ratio during a long-term research (16 years) on Chernozems. The results related to the four year-groups (D, R, RD, and DR) with different residue cover. Seven degrees of cover ratio (between 12.5% and 62.5%) were selected on stubbles. Higher cover ratio (≥52.5%) improved water conservation, increased earthworm abundance (31 and 41 ind m–2) and crumb (78 and 82%) ratio (p < 0.01). R year came first in the rank of water content and earthworm abundance and DR proved to be more favorable for crumb formation. Considering the rank of soil tillage treatments, ST takes first place in evaluation of soil water content (SWC) and crumb ratio, and NT for earthworm abundance.

scholarly journals Exploration of physico-chemical parameters and ionic constituents from groundwater used in irrigation of Tangail district, Bangladesh

2016 ◽  
Vol 3 (1) ◽  
pp. 115-119
Author(s):  
Elina Aziz ◽  
Md Younus Mia ◽  
Nowara Tamanna Meghla
Keyword(s):  
Trace Metal ◽  
Irrigation Water ◽  
Agricultural Crops ◽  
Soil Ecosystem ◽  
Long Term Effects ◽  
Chemical Parameters ◽  
Physico Chemical ◽  
Fe And Mn

The study was conducted for exploration of physico-chemical parameters and ionic constituents of groundwater used in irrigation of four upazilas namely Tangail Sadar, Kalihati, Delduar and Nagarpur upazila of Tangail district during the months of March, April and May of 2015. The physico-chemical parameters (pH, EC and TDS), ionic constituents (Ca2+, Mg2+, Na+, K+, Cl-, CO32-, HCO3-, PO43- and SO42-) and trace metal (Fe and Mn) were analyzed to assess the quality of irrigation in relation to soil properties and crop growth. The pH of groundwater indicates slightly alkaline in nature. As regards to EC the groundwater was in ‘good’ class and medium salinity hazards in quality for irrigation and the concentration of TDS indicates water as fresh water. The concentration of Ca2+, Mg2+, Na+, K+, Cl-, CO32-, HCO3-, PO43- and SO42- of groundwater were recorded within the permissible limit for irrigation and these ions might not create hazardous impact on soil ecosystem for growing crops. The trace amount of Fe and Mn was detected in irrigation water. In the study area, the groundwater was within the recommended limit and would not create problem for irrigation and that have not long term effects on irrigating agricultural crops which could be safely used for irrigation purposes.Res. Agric., Livest. Fish.3(1): 115-119, April 2016

Irrigation water distribution and long-term effects on crop and environment

2001 ◽  
Vol 50 (2) ◽  
pp. 125-140 ◽  
Author(s):  
Asad Sarwar ◽  
W.G.M Bastiaanssen ◽  
R.A Feddes
Keyword(s):  
Irrigation Water ◽  
Water Distribution ◽  
Long Term Effects

scholarly journals Crop Production, Livestock Production and Economic Growth in Botswana (1990-2017): An Application of ARDL Model

2021 ◽  
Vol 9 (8) ◽  
pp. 1500-1508
Author(s):  
Mufaro Andrew Matandare ◽  
Patricia Masego Makepe ◽  
Lekgatlhamang Setlhare ◽  
Jonah Bajaki Tlhalefang
Keyword(s):  
Economic Growth ◽  
Crop Production ◽  
Agricultural Sector ◽  
Livestock Production ◽  
Long Term Effects ◽  
Bounds Testing ◽  
Long Run ◽  
Short Run ◽  
Testing Approach

There are few studies in Botswana which have examined the relationship between agriculture and economic growth. The uniqueness of this study is grounded in investigating disintegrated agriculture components into crop production and livestock production and investigating their nexus with economic growth. This study estimated the short and long term effects between crop production, livestock production and economic growth in Botswana for the period 1990 to 2017. The Auto-Regressive Distributed Lagged (ARDL) bounds testing approach was employed to investigate the stated relationship. Study findings from the ARDL bound testing approach confirm evidence of a long-run equilibrium relationship between crop production, livestock production and economic growth. Results indicated that livestock production has a positive and significant impact on economic growth both in the short run and long run. On the other hand crop production has a positive and significant impact on economic growth only in the long run. Efforts towards supporting agricultural sector growth should be emphasized to promote agricultural sector productivity in a bid to forge a move away from dependence on imports of food in Botswana. To enhance economic growth, in both the short run and long run, the government of Botswana and all relevant stakeholders should invest in and promote livestock production. In the long term, policies that foster crop production are essential for economic growth.

Significance of the 50-year-old long-term experiments in Martonvásár in improving crop production

2010 ◽  
Vol 58 (Supplement 1) ◽  
pp. 23-34 ◽  
Author(s):  
Z. Berzsenyi
Keyword(s):  
Crop Production ◽  
Long Term Effects ◽  
Wheat Varieties ◽  
Present Generation ◽  
National Heritage ◽  
Long Term Experiments ◽  
Scientific Results ◽  
Carry Over ◽  
Set Up

Long-term experiments are indispensable for investigations on the long-term effects of various crop production methods and technologies. The long-term experiments set up in Martonvásár by Béla Győrffy are now 50 years old and can be considered as part of the national heritage. The most important of these experiments involve crop rotation vs. monoculture trials, the comparison of fertilisation systems, studies on the interactions and carry-over effects of organic and mineral fertilisers, fertiliser rate experiments and polyfactorial experiments. The long-term experiments in Martonvásár form an integral part of maize and wheat research and provide a place for testing the agronomic responses of maize hybrids and wheat varieties. Valuable scientific results are obtained from these experiments regarding the reasons for yield depression in monocultures, the yieldincreasing effect of crop rotations, the comparative benefits of organic and mineral fertilisation, the agronomic responses of genotypes, the sustainability and yield stability of crop production techniques, and the interaction between various crop production factors. These results promote the improvement of maize and wheat production and are regularly incorporated into recommendation systems. The present generation of scientists has a responsibility to maintain these experiments, so that they can continue to serve their purpose in the coming decades.

scholarly journals Long Term Trends of Hydrology, Sediment Yield and Crop Productivity in Andit Tid Watershed Central Highlands of Ethiopia

2020 ◽  
Author(s):  
Ayele Desalegn ◽  
Tilahun Getachew ◽  
Temesgen Yilma ◽  
Tilashwork Chanie
Keyword(s):  
Trend Analysis ◽  
Sediment Yield ◽  
Water Conservation ◽  
Crop Production ◽  
Temporal Distribution ◽  
Sediment Concentration ◽  
Spatial And Temporal Distribution ◽  
Sediment Loss ◽  
Long Term Trends

Abstract Background: Previously in Ethiopia reliable climatic and hydro-meteorological data are not available and not maintained properly but the long-term database is needed for the assessment and planning of resource dynamics. To minimize the lack of reliable database, the Soil Conservation Research Program (SCRP) established observatory model watersheds since 1981. Andit tid watershed is one of these watersheds established for monitoring the long term trends of climatic, hydrologic, sediment loss and crop production system as a representative site for central high land parts of Ethiopia at 1982. This research paper compiles the analysis of spatial and temporal distribution of the rain fall; trends of run off and sediment loss and their relation and the influence of position of terraces on crop production. Result: From the rainfall trend analysis result the rainfall of the watershed has insignificant spatial (PCI=1.07) and temporal (CV=16.7%) variation. The precipitation coefficient (%) value of the watershed indicates that July and August have big rain with high concentration; September have big rain with moderate concentration and these three months could contribute more than one twelfth of total rainfall amount. The highest runoff and sediment yield were observed in August and July, while sediment concentration was generally high in June. All crops delivered statistically highest yield (P<0.05) immediately above bunds (zone a). Conclusion: The rainfall spatial and temporal distribution trend analysis results conclude that the watershed is not vulnerable for future drought. The highest sediment concentration occurred in June was because of the reason that the lands are plowed and prepared for crop growth; following this small rainfall can carry much soil and can contribute for high suspended sediment concentration. The highest grain yield obtained from above bunds is because of the trapped and accumulated soil and plant nutrient could contribute for better performance and production of crops. To obtain better crop yield; to minimize sediment loss and improve the stream flow it is better to maintain the existed soil and water conservation structures and apply the new interventions.

scholarly journals Performance of Sorghum Varieties under Variable Rainfall in Central Tanzania

2017 ◽  
Vol 2017 ◽  
pp. 1-10 ◽  
Author(s):  
Barnabas M. Msongaleli ◽  
S. D. Tumbo ◽  
N. I. Kihupi ◽  
Filbert B. Rwehumbiza
Keyword(s):  
Crop Production ◽  
Rainfall Variability ◽  
Growing Season ◽  
Moisture Stress ◽  
Crop Failure ◽  
Rainfall Distribution ◽  
Cropping Season ◽  
Dry Spells ◽  
Semiarid Areas

Rainfall variability has a significant impact on crop production with manifestations in frequent crop failure in semiarid areas. This study used the parameterized APSIM crop model to investigate how rainfall variability may affect yields of improved sorghum varieties based on long-term historical rainfall and projected climate. Analyses of historical rainfall indicate a mix of nonsignificant and significant trends on the onset, cessation, and length of the growing season. The study confirmed that rainfall variability indeed affects yields of improved sorghum varieties. Further analyses of simulated sorghum yields based on seasonal rainfall distribution indicate the concurrence of lower grain yields with the 10-day dry spells during the cropping season. Simulation results for future sorghum response, however, show that impacts of rainfall variability on sorghum will be overridden by temperature increase. We conclude that, in the event where harms imposed by moisture stress in the study area are not abated, even improved sorghum varieties are likely to perform poorly.

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