Chapter 7: Design Of Micro Irrigation System: Sloping And Terraced Land

2017 ◽  
pp. 267-278
Keyword(s):  
Irrigation System ◽  
Micro Irrigation

scholarly journals Performance Evaluation of Low-Cost Filter in Field Condition

2021 ◽  
pp. 20-26
Author(s):  
K. Nagarajan ◽  
S. Ramya ◽  
T. Thangamani ◽  
A. Selvaperumal ◽  
T. Arthi
Keyword(s):  
Irrigation System ◽  
Low Cost ◽  
Cost Effective ◽  
Water Source ◽  
Filter Media ◽  
Micro Irrigation ◽  
Main Components ◽  
Filtration Unit ◽  
Solids Removal ◽  
Media Layer

The parameters require for maintaining the crop's health and the integrity of the irrigation system has a relation with quality of irrigation water. In Micro irrigation appropriate filtration is very much important to prevent clogging. Filtration unit is one of the main components in micro irrigation system that too, Primary filter is more important to be installed along with the unit, when the water source is from open reservoir and other water sources. Though it is essential, the primary filter is not being installed by the farmers due to its high cost. Hence this study is an attempt to fabricate low-cost filter and to evaluate its performance with different filter media layer. A low-cost primary filter for drip irrigation system is fabricated. Different filter media layer like silex sand (fine silex, coarse silex), pebbles with different sizes are selected. The results revealed that the removal efficiency of filter using silex sand and pebbles were 71% in terms of turbidity, 78% in terms of total suspended solids removal at flow rate of 12 m3 /hr. This fabricated low-cost filter will be cost effective for small farm applications.

scholarly journals MODELING OF OPTIMAL DESIGN AND MANAGEMENT OF MICRO-IRRIGATION SYSTEM

2013 ◽  
Vol 30 (3) ◽  
pp. 805-830
Author(s):  
G. A. Sharaf ◽  
Azza Hassan ◽  
Hashem Mahmoud
Keyword(s):  
Optimal Design ◽  
Irrigation System ◽  
Micro Irrigation

Performance of pea under different irrigation systems

2016 ◽  
Author(s):  
K.V. Ramana Rao ◽  
Suchi Gangwar ◽  
Arpna Bajpai ◽  
Ravish Keshri ◽  
Lavesh Chourasia ◽  
...  
Keyword(s):  
Drip Irrigation ◽  
Irrigation System ◽  
Sprinkler Irrigation ◽  
Sprinkler System ◽  
Crop Water ◽  
Flood Irrigation ◽  
Irrigation Systems ◽  
Weekly Basis ◽  
Agricultural Engineering ◽  
Micro Irrigation

The field experiment was conducted at Precision Farming Development Centre, Central Institute of Agricultural Engineering, Bhopal on influence of different irrigation methods in three continuous years (2010-2013) on the performance pea crop. Conventional flood irrigation, micro sprinkler and drip irrigation systems were adopted as three treatments and with seven replications in each treatment in the study. Pea (Arkel variety) crop was sown at a spacing of 45 X 10 cm. During the period of experiment flood irrigation were applied on weekly basis and micro irrigation and drip irrigation systems were operated every third day to meet the crop water requirement. The total quantity of water applied in flood, drip irrigation and micro sprinkler systems were 387.5, 244.7 and 273.5 mm respectively. Maximum crop yield was observed under micro sprinkler system (98.60 q/ha) followed by drip and conventional irrigation system. Saving of water was found better under drip irrigation over micro sprinkler irrigation system.

scholarly journals Nitrate distribution pattern under conventional and trickle irrigation system

2021 ◽  
Vol 17 (2) ◽  
pp. 740-744
Author(s):  
Arpna Bajpai ◽  
Arun Kaushal
Keyword(s):  
Irrigation System ◽  
Discharge Rate ◽  
N Uptake ◽  
Trickle Irrigation ◽  
Irrigation Frequency ◽  
Threshold Limit ◽  
Nitrate Fertilizer ◽  
Micro Irrigation ◽  
Mobile Ions ◽  
Nitrate Distribution

Nitrate is a highly mobile ions that moves with water. So that nitrate distribution around the driplines is strongly affected by irrigation and fertigation strategy. Nitrate movement under conventional flood irrigation system was observed 2 to 3.5 times faster as compared with trickle irrigation as well as NO3 "-N concentrations exceeded the threshold limit (i.e. 10 mg l-1) under traditional irrigation method, while stayed below the threshold limit under micro irrigation methods. Nitrate distribution was influenced by hydraulic properties, drip discharge rate, soil layering, timing of nutrient application and irrigation frequency. To maintain larger amounts of nutrient nearby emitter in highly permeable coarse-textured soils, nutrients must be applied at the starting of an irrigation cycle so that it is less susceptible to leaching losses. Study revealed that higher transpiration raised the NO3-N uptake by the plats. The study also revealed that urea moves promptly with irrigation water and urea–ammonium–nitrate fertilizer increased the nitrate concentration, near the drip line immediately after the drip fertigation due to the nitrification, while low concentrations was found near the periphery of the wetting zone.

Effect of drip fertigation on pigeonpea [Cajanus cajan (L.) Millsp] – A review

2017 ◽  
Vol 38 (04) ◽  
Author(s):  
Vimalendran Loganathan ◽  
D. Udhaya Nandhini ◽  
K. R. Latha
Keyword(s):  
Root Zone ◽  
Irrigation System ◽  
Optimum Moisture Content ◽  
Irrigated Agriculture ◽  
Large Section ◽  
Food Legumes ◽  
Use Efficiency ◽  
Micro Irrigation ◽  
The Right ◽  
Drip Fertigation

Food legumes are important source of protein in the diets of a large section of vegetarian population in the developing countries in general and India in particular. Even though India has the largest area under pulses in the world, the average productivity is relatively low and the production is not adequate to meet the demand. For increasing the productivity of the pulses key inputs viz., water, seeds and nutrients need to be applied in the right quantity to enhance the production. The water use efficiency is increased through micro irrigation in the form of drips and sprinklers. Drip irrigation can be considered as an efficient irrigation system since it causes wetting of the soil only and maintain optimum moisture content in the root zone. It also offers several water management advantages like timely application of water and water supply. Micro irrigation provides many unique agronomic, water and energy conservation benefits that address many of the challenges facing irrigated agriculture, now and in the future

scholarly journals Lettuce production in greenhouse under fertirrgation with nitrogen and potassium silicate

2017 ◽  
Vol 39 (2) ◽  
pp. 211 ◽  
Author(s):  
Renan Soares de Souza ◽  
Roberto Rezende ◽  
Tiago Luan Hachmann ◽  
Cláudia Salim Lozano ◽  
André Felipe Barion Alves Andrian ◽  
...  
Keyword(s):  
Experimental Design ◽  
Factorial Design ◽  
Irrigation System ◽  
Potassium Silicate ◽  
The Other ◽  
Control Treatment ◽  
Fresh Matter ◽  
Number Of Leaves ◽  
Micro Irrigation ◽  
Best Responses

The objective of this study was to evaluate the effect of nitrogen and potassium silicate on the production and commercial aspects of curly lettuce, Vera cultivar. The experimental design was completely randomized (CRD), with ten treatments and three replications. The treatments, arranged in a factorial design according to the Plan Puebla III matrix (Turrent & Laird, 1975), consisted of the combination of five doses of nitrogen (9; 54; 90; 126, and 171 kg ha-1) and five doses of potassium silicate (1.15; 6.90; 11.50; 16.10, and 21.85 kg ha-1). A control treatment without application of nitrogen and potassium silicate was also inserted. The crop was grown in a greenhouse, and the doses were applied as sidedressing using a drip micro-irrigation system. Total fresh matter, commercial fresh matter, non-commercial fresh matter, number of leaves and commercial trade index were evaluated. The commercial fresh matter and the number of commercial leaves per plant were affected only by nitrogen fertigation and increased linearly with an increase in the dose of nitrogen, with the best responses observed at the highest dose of this element (171 kg ha-1). Potassium silicate only had an effect on non-commercial fresh matter, with no influence on the other characteristics. 

scholarly journals Verification of IRRILAB Software Application for the Hydraulic Design of a Micro-Irrigation System by Using IRRIPRO for an Apple Farm in Sicily

Water ◽  
2021 ◽  
Vol 13 (5) ◽  
pp. 694
Author(s):  
Giorgio Baiamonte ◽  
Pietro Di Dio ◽  
Mustafa Elfahl
Keyword(s):  
Energy Saving ◽  
Numerical Solutions ◽  
Irrigation System ◽  
Maximum Energy ◽  
Software Application ◽  
Software Applications ◽  
First Choice ◽  
One Step ◽  
Micro Irrigation ◽  
Save Energy

In recent years, many studies have been performed to develop simple and accurate methods to design micro-irrigation systems. However, most of these studies are based on numerical solutions that require a high number of iterations and attempts, without ensuring to maximize water use efficiency and energy-saving. Recently, the IRRILAB software, which is based on an analytical approach to optimally design rectangular micro-irrigation units, has been developed, providing the solution corresponding to the maximum energy-saving condition, for any slope of the laterals and of the manifold. One IRRILAB limitation is that, according to its theoretical basis, the rectangular planform geometry and uniform slope of the laterals and of the manifold are required. On the contrary, IRRIPRO software, which is based on the traditional numerical solution, does not have the aforementioned limitations, but requires an important number of attempts, especially when common emitters are used. In this study, the results of a joint use of IRRILAB and IRRIPRO software applications are illustrated, towards the aim to verify the IRRILAB performance in a large number of micro-irrigation sectors belonging to a Sicilian apple farm, which is characterized by a high irregular topography, thus it is suitable for the purpose of this study. First, only five irrigation sectors, for the actual subdivisions of the farm, were considered, showing limited reasonable IRRILAB results. Dividing the farm into a higher number of sectors so as to provide a better uniformity in planform geometry and slope revealed that IRRILAB results improved in terms of emission uniformity and energy consumption, as verified by IRRIPRO applications. The energy-saving provided by IRRILAB (in one step) with respect to that by IRRIPRO (by attempts) resulted higher for common emitters (CEs) (−15% for five sectors and −9% for nine sectors) than for pressure compensating emitters (PCEs) (−7% for five sectors and −6% for nine sectors). In absolute terms, the energy is greater for five-sector subdivision than for nine-sector subdivision. For both software, the use of PCEs always required less energy than CEs, because of the higher range of pressure compensating of PCEs than CEs. However, PCEs are characterized by less durability and by a higher manufacturing variation coefficient, thus they should not be the first choice. In conclusion, IRRILAB software could be recommended because it is easy to use, making it possible to save energy, especially when sectors are almost rectangular and uniform in slopes.

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