scholarly journals Oxygation to Unlock Yield Potential of Crops: A Review

2021 ◽  
Author(s):  
R. Parameshwarareddy ◽  
S. Sagar Dhage
Keyword(s):  
Drip Irrigation ◽  
Root Zone ◽  
Crop Growth ◽  
Plant Performance ◽  
Subsurface Drip Irrigation ◽  
Yield Potential ◽  
Irrigated Agriculture ◽  
Cotton Lint ◽  
Soil Oxygen ◽  
Subsurface Drip

Irrigated agriculture has played a vital role in supporting a dramatic increase in global food production over recent decades. However, only 20 per cent of the world’s agricultural land is irrigated. It produces 40 per cent of world’s food supply. Even the traditional practices of irrigation, in whatever form, will have transient of long term depressive effects of soil oxygen content. The depressive effect of irrigation on soil oxygen is higher for a given soil water potential on heavy clay soils (e.g., for vertisols) than on lighter soils Hence plants suffered from sub-optimal oxygen supply in the root zone and causes hypoxia and anoxia. Aeration of subsurface drip irrigation (SDI) has been shown to alleviate soil hypoxia/anoxia by providing air/oxygen to an oxygen-depleted plant root zone. This can be achieved by coupling an air injector venturi to draw air into the subsurface drip irrigation system is known as oxygation/aerogation/air injection. Oxygation assures optimal root function, microbial activity and mineral transformations, which lead to enhanced yield and water use efficiency under hypoxic (anaerobic) conditions. It also improves plant performance and yield under irrigated conditions (i.e. crops such as radish by 9.87 per cent and cotton lint yields by 10 per cent) previously considered to be satisfactory for crop growth and offers scope to offset some of the negative impacts of compaction and salinity related to poor soil aeration on crop growth. The aeration condition of irrigated soils deserves more attention than it has received in the past, if we wish to unlock yield potential constraints by soil oxygen limitations in irrigated areas and enhance the yield potential to meet the future food (and fibre) demand.

Effect of New Irrigation Technology on the Physiology and Water Use Efficiency of Potato by Reclaimed Water Irrigation

2013 ◽  
Vol 726-731 ◽  
pp. 3035-3039 ◽  
Author(s):  
Xue Bin Qi ◽  
Zong Dong Huang ◽  
Dong Mei Qiao ◽  
Ping Li ◽  
Zhi Juan Zhao ◽  
...  
Keyword(s):  
Water Use Efficiency ◽  
Water Use ◽  
Drip Irrigation ◽  
Field Experiments ◽  
Root Zone ◽  
Subsurface Drip Irrigation ◽  
Treated Wastewater ◽  
Root Weight ◽  
Use Efficiency ◽  
Subsurface Drip

Agriculture is a big consumer of fresh water in competition with other sectors of the society. The agricultural sector continues to have a negative impact on the ecological status of the environment. The worlds interest in high quality food is increasing. Field experiments were conducted to investigate the effect of subsurface drip irrigation on physiological responses, yield and water use efficiency, Soil nitrogen, Root weight density of potato in the semi-humid region of middle China using subsurface drip irrigation. The experiment used second-stage treated wastewater with and without addition of chloride, and both subsurface drip and furrow irrigations were investigated. Results indicated that the alternate partial root-zone irrigation is a practicable water-saving strategy for potato. The drip with chlorinated and non-chlorinated water improved water use efficiency by 21.48% and 39.1%, respectively, and 44.1% in the furrow irrigation. Partial root zone drying irrigation stimulates potato root growth and enhances root density. The content of the heavy metal in the potato tubers is no more than the National Food Requirements, and it is consistent with National Food Hygiene Stands.

scholarly journals Impacts of Fertigation via Surface and Subsurface Drip Irrigation on Growth Rate of Rockmelon

2020 ◽  
Author(s):  
Wan Fazilah Fazlil Ilahi
Keyword(s):  
Growth Rate ◽  
Irrigation Water ◽  
Drip Irrigation ◽  
Root Zone ◽  
Irrigation System ◽  
The United States ◽  
Subsurface Drip Irrigation ◽  
Drip Irrigation System ◽  
Subsurface Drip ◽  
Surface Drip Irrigation

Fertigation is one of the most important application of irrigation that are being used in commercial farming. This aplication help farmers to timely supply the water through drip irrigation coupled with accurate amout of water, rate of fertilizer application, and at the same time improving the nutrient uptake and water use efficiency (WUE) by the plant. The water supply through surface and subsurface drip irrigation system is the most efficient irrigation practice compared to others.Water supply from subsurface drip irrigation system is directly into the root zone, while for surface drip irrigation, water is supplied above the root zone. However, the use of surface drip irrigation system can cause the irrigation water easily evaporate to environment and reduce the WUE by plant. Rockmelon (cucumis melo) was selected as plant material in this study. Rockmelon is one of the plant that contain sweet and juicy along with other nutritional value. It also has commercial interest in a number of countries, including Europe, the United States, Mediterranean and Asia. The objectives of the study were to observe the different growth rate of rockmelon between surface and subsurface drip irrigation as well as to observe the efficiency of irrigation. This study was conducted under the rain shelter at Unit Fertigasi Projek Keusahawanan Ladang 10, Universiti Putra Malaysia (UPM). There were two treatments of irrigation tested, surface drip irrigation and subsurface drip irrigation. Data collection include leaf diameter, leaf length and fruit circumferences. The effect of irrigation on growth performance of rockmelon were observe during week one and week six and was analyzed with Statistically Analysis System (SAS). The result of this study showed that, the growth for surface drip irrigation is higher compared to subsurface drip irrigation and both of the treatments achieved 25% of irrigation application efficiency.

Subsurface Drip Irrigation and Fertigation of Broccoli

2002 ◽  
Vol 66 (1) ◽  
pp. 178 ◽  
Author(s):  
Thomas L. Thompson ◽  
Thomas A. Doerge ◽  
Ronald E. Godin
Keyword(s):  
Drip Irrigation ◽  
Subsurface Drip Irrigation ◽  
Subsurface Drip

Behaviour of the fecal pollution indicators in a soil irrigated with treated wastewater under onsurface and subsurface drip irrigation

2000 ◽  
Vol 42 (1-2) ◽  
pp. 75-79 ◽  
Author(s):  
C. Campos ◽  
G. Oron ◽  
M. Salgot ◽  
L. Gillerman
Keyword(s):  
Organic Matter ◽  
Drip Irrigation ◽  
Organic Matter Content ◽  
Fecal Pollution ◽  
Fecal Coliforms ◽  
Subsurface Drip Irrigation ◽  
Treated Wastewater ◽  
Reclaimed Wastewater ◽  
Pollution Indicators ◽  
Subsurface Drip

A critical objective for any wastewater reuse programme is to minimise health and environmental hazard. When applying wastewater to soil–plant systems, it is to be noted that the passage of water through the soil considerably reduces the number of microorganisms carried by the reclaimed wastewater. Factors that affect survival include number and type of microorganisms, soil organic matter content, temperature, moisture, pH, rainfall, sunlight, protection provided by foliage and antagonism by soil microflora. The purpose of this work was to examine the behaviour of fecal pollution indicators in a soil irrigated with treated wastewater under onsurface and subsurface drip irrigation. The experiment was conducted in a vineyard located at a commercial farm near the City of Arad (Israel). Wastewater and soil samples were monitored during the irrigation period and examined for fecal coliforms, somatic and F+ coliphages and helminth eggs. Physico-chemical parameters were controlled in order to determine their relationship with removal of microorganisms. The results showed high reduction of the concentration of microorganisms when wastewater moves through the soil; and a good correlation between the reduction of fecal pollution indicators and moisture content, organic matter concentration and pH. The application of secondary treated domestic wastewater in this specific soil and under these irrigation systems affect the survival of microorganisms, thus reducing the health and environmental risk.

Sign in / Sign up

Export Citation Format

Share Document