نتایج جستجو برای: surface drip irrigation sdi

تعداد نتایج: 678323  

2016
Olfa Zarrouk Cecilia Brunetti Ricardo Egipto Carla Pinheiro Tânia Genebra Antonella Gori Carlos M. Lopes Massimiliano Tattini M. Manuela Chaves

The impact of water deficit on berry quality has been extensively investigated during the last decades. Nonetheless, there is a scarcity of knowledge on the performance of varieties exposed to a combination of high temperatures/water stress during the growing season and under vineyard conditions. The objective of this research was to investigate the effects of two irrigation regimes, sustained ...

2012
Wenxuan Mai Changyan Tian Chunjian Li

Long-term use of drip irrigation technology may lead to root degradation and affect shoot growth and yield. A field experiment was conducted to investigate aboveand belowground growth responses to drip irrigation under mulch film (DI) in comparison to flood irrigation under mulch film (FI) in cotton. The monolith method was used to harvest roots at seven timepoints in the growth periods, and th...

2016
Xuejun Dong Wenwei Xu Yongjiang Zhang Daniel I. Leskovar Peter Langridge

High air temperatures during the crop growing season can reduce harvestable yields in major agronomic crops worldwide. Repeated and prolonged high night air temperature stress may compromise plant growth and yield. Crop varieties with improved heat tolerance traits as well as crop management strategies at the farm scale are thus needed for climate change mitigation. Crop yield is especially sen...

2003
Patricia Imas

Israel is a small country with a total land area of 21,000 km, from which 20% is arable land. More than half of Israel has an arid to semi-arid climate. Approximately half of the cultivated area (200,000 hectares) has to be irrigated due to lack of rainfall and other water resources. Approximately 80% of the irrigated land in Israel uses the fertigation method, combining the application of wate...

ژورنال: علوم آب و خاک 2019

Subsurface drip irrigation systems, compared to other irrigation systems (basin and furrow), enhance the delivery of water and nutrients directly into the root zone. The purposes of this study were to determine wetting front advancement in a subsurface drip irrigation and to compare the results with the HYDRUS 2D model simulation. In this study, the irrigation using T-Tape was carried out on a ...

Journal: :مدیریت آب و آبیاری 0
زینب حیدری دانشجوی کارشناسی ارشد آبیاری و زهکشی، دانشکدۀ کشاورزی دانشگاه رازی، کرمانشاه، ایران معصومه فراستی استادیار گروه مهندسی آب، دانشکدۀ کشاورزی دانشگاه رازی، کرمانشاه، ایران , استادیار دانشکدۀ کشاورزی، دانشگاه گنبدکاووس، گنبد، ایران رسول قبادیان دانشیار گروه مهندسی آب، دانشکدۀ کشاورزی دانشگاه رازی، کرمانشاه، ایران

in this study, effect of slope on soil wetting pattern under surface drip irrigation and simulation with hydrus-2d model evaluated.the physical model made of plexiglas to size 83, 6 and 54 cm (length, width, height) filled with silty clay loam soil was used. to achieve the desired discharge, a small drip irrigation system created that includes a water tank with a fixed height (about 2 meters), ...

Journal: :Water 2021

Cape Verde, which has agricultural land that is mainly rainfed, will be severely affected by climate change due to increased drought conditions. Scarce water availability makes this country highly dependent on imports for its food supply, resulting in more than 80% importation. Improving use efficiency, implementing precision irrigation could help achieve sustainable of resources. Cereal produc...

1997
Howard Neibling

daho has approximately 4 million acres of irrigated agricultural land. Most of it is in pasture and hay crops, grain crops, potatoes, and sugar beets, in hierarchical order. Table 1 shows the number of irrigated acres in the state by crop for 1994. Nearly all of this land is irrigated by either sprinklers (59 percent) or surface irrigation systems (40 percent), with only a very small amount (le...

Journal: :PloS one 2015
Yuan Li Zongxia Jia Wenquan Niu Jingwei Wang Mingzhi Zhang

Soil hydraulic principles suggest that post-infiltration hypoxic conditions would be induced in the plant root-zone for drip-irrigated tomato production in small pots filled with natural soil. No previous study specifically examined the response of tomato plants (Solanum lycopersicum) at different growth stages to low soil aeration under these conditions. A 2 × 6 factorial experiment was conduc...

Journal: :آب و خاک 0
مهدی تابعی سعید برومند نسب امیر سلطانی محمدی علی حیدر نصراللهی

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...

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