A field experiment was carried out during the spring season 2020 at University of Baghdad to study effect length and depth drip tape on wetting advance ofsubsurface irrigation system using Hydrus 2D/3D program. The site planted with sunflower in a clay loam texture. installed 0.3m below soil surfacein two lengths; 20m 40m. designed according arrangement split plotsdesign three replications. tre...

in the country, reducing water resources and increasing water losses in the various methods of surface irrigation, has increased attention, super drip irrigation method, especially drip tape irrigation. one of the techniques are used in cultivation of early sweet corn, the use of plastic mulch. using this technique, the reserve temperature conditions for plant growth and early maturity, resulti...

The flow channel structure is the main factor affecting hydraulic performance, anti-clogging and energy dissipation performance of drip irrigation tape. Proper exploring performance-related but hard-to-measure parameters in emitter tape imperative. However, traditional studying methods may lead to large systematic errors human errors, resulting inaccurate estimations an unreasonable design. Thi...

introduction: the to be limited available water amount from one side and to be increased needs of world population from the other side have caused increase of cultivation for products. for this reason, employing new irrigation ways and using new water resources like using the uncommon water (salty water, water drainage) are two main strategies for regulating water shortage conditions. on the ot...

regarding increased limitations on fresh water availability in agriculture and the necessity of finding solutions for management of unconventional waters, some scenarios for using saline water were assessed for forage maize. saltmed model, as an integrated approach, can be used for a variety of irrigation systems, soil types, soil stratifications, crops, water management strategies (blending or...

the research was carried out to study the effect of controlled deficit irrigation (cdi) on quality and quantity of sugar beet in bardsir region of kerman and karaj during 2005- 2006. in this experiment, 11 irrigation treatments were studied in a randomized complete block design with three replicates. crop water requirement was calculated in two- day periods. the treatments were implemented in d...

Halosulfuron is a proposed alternative to methyl bromide for managing nutsedges (Cyperus spp.) in several vegetable crops, including cucurbits. Field studies were conducted to evaluate the crop sensitivity to halosulfuron in a spring squash (Cucurbita pepo L.)—fall cucumber (Cucumis sativus L.) rotation from 2000 to 2002. Treatments included application of halosulfuron to the soil surface after...