Soil aggregate size distribution and stability following Conventional-till, Minimum-till and No-till systems
Journal Title: International Journal of Farming and Allied Sciences - Year 2014, Vol 3, Issue 5
Abstract
The present study was carried out to clarify the effects of some soil physical and chemical specifications on soil aggregates size distribution and stability under different tillage methods. Conventional tillage cause to break soil aggregates especially in loamy soils consequently increase soil sensitivity to water and winderosion. On the other hand, soil aggregate size distribution and aggregate stability are the two important physical properties of the soil with profound effects on soil health. Thus, soil sensitivity to destruction might be a criterion for evaluating soil agronomic capacity that may be defined by its stability i.e. physical structure. In an experiment carried out in 2011-12 crop season at agricultural education and research farm of Tehran University, Karaj. Iran (35048’N, 510’E, and 1321m above sea level) using randomized complete block design in split-plot arrangement with three replications physical soil parameters of aggregates size distribution and stability were studied. Three tillage methods (No-till, Min-till and Conventional-till) and three bread wheat cultivars (Pishtaz, Pishgam and Bahar) were allocated to the main and sub-plots, respectively. Results showed that No-till was significantly different comparing to the other two methods in aggregates particles size distribution along with increasing aggregate stability index such as mean weight diameter, geometrical mean of particle diameter, water stable aggregate index and total soil nitrogen. However, Minimum-till was significantly different with Conventional-till in above mentioned properties (p<0.05) .
Authors and Affiliations
Aminollah Mousavi Boogar, Mohammad Reza Jahansouz and Mohammad Reza Mehravar
Keywords
Related Articles
- EP ID EP32593
- DOI -
- Views 312
- Downloads 0
Comparative analysis of the aroma chemicals of Mentha piperita L. using hydrodistillation and CombiPAL system techniques
Aerial parts of Mentha piperita L. (Peppermint) were subjected to headspace and hydrodistillation techniques after drying, then headspace volatiles and the essential oil were analyzed by GC/MS. 50 and 40 constituents we...
Socio-Economic Role of Agricultural Cooperatives in S&B Province
Agriculture is mother of all industries and it plays an important role in socio-economic life of developing and agricultural oriented countries. Developing countries like Iran with agricultural base but exporting oil a...
The effect of temperature on CaCo3 sediment in water supply network (Case Study: South Khorasan-Esfezar qanat)
this study describes the influence of precipitation of CaCo3 in Esfezar Qanat in South Khorasan state. Studies perform by decreasing provisional hardness in water supply pipes in qanat region. Because this qanat is the...
Simulation of wheat yield by AquaCrop model
Crops growth simulation models are important tools for evaluating effects of water deficiency on productivity and yield of crops. One of these models is the AquaCrop model. This model can simulate productivity, yield,...
Effects of Nitrogen fertilizer on yoeld and som physiological charachteristics on two drought resistance and susceptible wheat (Tritticum aestivum L.) cultivars in response to water stress
Drought stress and nutrient deficiency are the major limiting factors in crop production around the world. In order to investigation the effects of nitrogen on physiological characteristic and yield of two winter wheat...