Agriculture Irrigation

Understanding pressure

Understanding pressure

Author: Nelson Irrigation Corporation, Senninger

Irrigation systems are designed to distribute a predetermined amount of water over a specific area. Applicators operate within a specific range of flows and pressures. Because pressure affects flow, pressure regulators are used, so applicators run at the designed operating pressure to help assure delivery of the designed application rate. All systems experience pressure fluctuations. Some of the causes include elevation changes within the irrigated area; pressure loss through pipes and fittings; fluctuations when zones cycle on or off; system demand change on large projects with multiple wells providing water; and activation of end guns and corner arms on mechanized systems

Subsurface Drip Irrigation (SDI) Maintenance

Subsurface Drip Irrigation (SDI) Maintenance

Author: Matt Clift, director of Global Product Marketing at Rivulis
However, as I have met growers around the world, I have seen two opposite scenarios. On the one hand, I meet growers with SDI systems who have realized incredible yield increase and cost reduction. Their systems have given them many years of return, with some growers still using the same drip tape that was installed 20+ years ago. On the other hand, unfortunately I have also seen SDI systems which have failed in just a few seasons. These growers are unhappy with their system and experience problems such as clogging and the inability to deliver enough water to their crops during peak water demand. 
Development in the field of filtration devices

Development in the field of filtration devices

Author: Netafim

Filter systems have changed considerably over the last few decades. Furthermore, the popularity of these devices occurred simultaneously with the increased use of irrigation systems in agriculture and parks and gardens and with the emergence of localised irrigation systems, in particular. With the flow rates used in the emitters always being low and the quality of the water worsening while the water levels are dropping and the temperatures of the aquifers rising (forced by climate change…), these systems have faced enormous challenges and this pressure has logically led to profound changes. We are also proposing to carry out a comprehensive assessment of these systems and the way they have evolved over the last few years, so as to take a look at the current situation of the solutions that are most popular in France and, above all, worldwide

Repair and Maintenance of Center Pivots

Repair and Maintenance of Center Pivots

Frédéric Noguier, Lindsay

Because a centre pivot works automatically and is very reliable means that the farmer may forget that there are certain maintenance operations to be carried out. The farmer should not forget to carry out an annual maintenance program.

Drip Irrigation and Fertigation, an inseparable duet

Drip Irrigation and Fertigation, an inseparable duet

ITC

The emergence of agriculture represented an important, and possibly the most significant, milestone in the development of human civilization, as it gave rise to the Neolithic Revolution. The availability of water is the most decisive factor for the growing of crops and civilizations evolved along the banks of rivers or in areas with enough rainfall to cover the needs of the first crops. 

A new  scheme for recycling flexible irrigation tubes

A new scheme for recycling flexible irrigation tubes

Fleur Martin, Irrigazette

It was agricultural plastic film in 2009; followed by the twine and net wrap used on round bales in 2013, then anti-hail netting in 2015, and now the agricultural plastic recovery sector has a scheme for used flexible irrigation tubes or drip tapes. This scheme operates according to the principle of shared responsibility and we will see in this article how all the players (manufacturers, traders, distributers and farmers) have worked together and set up a national scheme open to all farmers since January 2019.

Central Irrigation Pivot

Central Irrigation Pivot

Editions Arvalis – Institut du Végétal (Plant Research Institute) – Sophie Gendre, Thibaut Deschamp, Jean-Marc Deumier, Bertrand Lacroix, Hugo Gabriel

The pivot is a mechanised irrigation system that irrigates in a circular manner (full rotation) or in sections. It generally moves around a fixed central point but it can be designed to be towed from one pivot point to another or from one field to another. The pivot system has a number of spans consisting of a tube supported by a truss and a motorised tower that move around a central unit, which acts as an intake for the water and electricity supply.

 

Innovations in Frost Protection

Innovations in Frost Protection

Eliad Sasoni, Senior Agronomist, Naandanjain Irrigation Ltd

The world around us is changing. Change has always been a part of this planet, but recently the rate at which change occurs has been accelerating. Extreme weather phenomena, such as tsunamis, earthquakes and floods are becoming more and more common. Many researchers are focusing on climate change and its effects. Scientists now know how to explain these phenomena, at least in part, but we are still unable to fully predict events such as heat waves and heavy rains.

 

Frost Protection

Frost Protection

Rivulis

The climate change makes things more difficult with the weather conditions becoming more and more unpredictable, including the frost, which is one of the extreme conditions caused by climate change.

Dynamic agrivoltaism: combining crop production and the generation of energy

Dynamic agrivoltaism: combining crop production and the generation of energy

Fleur Martin, with the participation of Raphaël Karm, Terideal

The start-up Sun’Agri, a subsidiary of the Sun’Air group, has developed the agrivoltaism technique and conducted experiments on agricultural test sites. The goal is to combine the production of crops and energy within the context of global warming.