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Effect of tillage methods on productivity of winter wheat in the irrigated conditions Central Asia and the Caucasus

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Title Effect of tillage methods on productivity of winter wheat in the irrigated conditions Central Asia and the Caucasus
 
Creator Nurbekov, Aziz
 
Contributor Kassam, Amir
Musaev, Asad
Sydyk, Dossymbek
Feindel, David
Muminjanov, Hafiz
Turok, Jozef
 
Subject irrigated
 
Description Widespread degradation of soil resources occurs on agricultural lands in the Central Asia and the Caucasus (CAC) region (Kazakhstan, Uzbekistan and Azerbaijan), leading to sub-optimal output and efficiency. The prime reason for this degradation is the intensive mechanical tillage, excessive application of agrochemicals and poor irrigation management. This degradation is a direct threat to the sustainability of agricultural production and of the food and agriculture system. Conservation Agriculture (CA), which minimizes or avoids mechanical soil disturbance (i.e. no-tillage), keeps the soil covered with mulch, and promotes a diversified cropping system is proving to be good for farmers and the environment, and leads to reduced use of agrochemical and water while producing higher output. CA systems have a great potential for increasing agricultural production in CAC region at the same time to maintain soil health and fertility.
The main objective of the experiment reported here was to study effect of different tillage methods on productivity of winter wheat in the irrigated conditions of CAC. There were three different tillage treatments; conventional till (CT), minimum till with disking (MTD) and no-till (NT). Winter wheat productivity was higher in the treatment with no-till method compared to other treatments across all the countries. The absolute highest yield of 6.71 t ha-1 was recorded in the no-till treatment in 2013 in Uzbekistan while in conventional tillage the maximum yield was 6.54 t ha-1 also in Uzbekistan in 2012. The lowest grain yield (4.7 t ha-1) was recorded under conventional till in Kazakhstan. This is in line with Nurbekov et al. (2012) where it is reported that no-till winter wheat crop had a higher yield compared to conventional and minimum till crop yields. There are also a number of changes which take place in the no-till soil that leads to improved soil functions.
 
Date 2015-12-31
2016-04-28T07:30:26Z
2016-04-28T07:30:26Z
 
Type Brief
 
Identifier https://mel.cgiar.org/reporting/download/hash/ft2iKQ9V
Aziz Nurbekov, Amir Kassam, Asad Musaev, Dossymbek Sydyk, David Feindel, Hafiz Muminjanov, Jozef Turok. (31/12/2015). Effect of tillage methods on productivity of winter wheat in the irrigated conditions Central Asia and the Caucasus.
https://hdl.handle.net/20.500.11766/4701
Open access
 
Language en
 
Rights CC-BY-NC-4.0
 
Format PDF
 
Source 18th International Soil Conservation Organization Conference;