نتایج جستجو برای: surface drip irrigation sdi

تعداد نتایج: 678323  

2014
S. H. Liu Y. H. Kang

A field experiment was carried out to study the changes of soil bacteria, fungi and actinomycetes in saline-sodic soils for different numbers of cultivated years under drip irrigation. The drip irrigation had substantial effects on levels of bacteria, fungi and actinomycetes. With increased number of cultivated years under drip irrigation, the soil biological properties were greatly improved. A...

ژورنال: علوم آب و خاک 2017
باب الحکمی, علی, نوشادی, مسعود,

The uniformity parameters in drip irrigation system are influenced by the slope of manifold and therefore, the evaluation of drip irrigation systems is important in slopping lands. In this research, different slopes of 0.2, 6, 11, 16, 20 and 25% were applied on the ground surface and manifold of drip irrigation system with diameters of 50, 63 and 75 mm and length of 70 m were installed on these...

Journal: :Agronomy 2021

Cape Verde is a semiarid country where lack of rainfall exacerbates the scarce resources available for livestock which, therefore, make it very vulnerable to climate change. By providing reclaimed water (RW) irrigation, possible decrease forage importation. Subsurface drip irrigation (SDI) improves health security by preventing contact between and harvested plants. Sorghum water-efficient crop ...

2005
Theodore M. Webster

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...

عباس پلنگی, جمال, آخوند علی, علی محمد ,

For an appropriate drip irrigation system design, a prediction of soil wetting pattern is needed for a given soil texture. The wetting pattern geometry is a key factor for emitter distance determination as well as crop type. The geometry of the wetting bulb is dependent on the parameters such as soil hydraulic properties, emitter discharge and the irrigation time. This study has been conducted ...

ژورنال: علوم آب و خاک 2022

Due to limited access to water, it is necessary to determine the comparative advantage of crops and horticultural products in different parts of the province and identify products that lack the desired productivity. Then, find ways to improve water productivity or replace products with higher comparative advantage with low-yield products. Based on this, the crop and economic productivity index ...

2004
D. I. Leskovar

Many vegetable production regions in the southwestern US are strictly regulated on water use. In addition, demand for high quality and nutritious vegetables has increased. This study was performed to explore the effects of deficit irrigation on yield, fruit quality and lycopene content of red-fleshed diploid and triploid watermelon (Citrullus lanatus (Thunb) Matsum & Nakai) cultivars. Irrigatio...

Journal: :Agronomy 2021

Heat stress (HS) and water (WS) pose severe threats to viticulture, effective management solutions counter their effects on grapevine performance must be examined. In this study, we evaluated the physiological spectral responses of Vitis vinifera L. cv. Sauvignon blanc individual combined (HS + WS) under four different cooling irrigation strategies. The treatments were: standard drip (SI), extr...

Eman Pourkhiz Fakhrodin Ghasemi Sahebi Masoud Hekmat

To evaluate the effect of water, tape drip and furrow irrigation methods on the performance components and features of Agria cultivar potato, an experiment was carried out in the agriculture faculty of Kermanshah. Repeated three times, this study was carried out in the form of full random blocks with the main factor of different amounts of irrigation water in three levels (50, 75, and100 percen...

2014
Qing-Han Gao Jin-Gang Yu Chun-Sen Wu Zhi-Sheng Wang You-Ke Wang De-Lan Zhu Min Wang

Loess Plateau is a typical rain-fed farming region, facing the threat of drought. Irrigation method is among the most important factors affecting jujube quality. This study investigated the response of Ziziphus jujuba Mill. cv. Lizao quality to three different irrigation methods (drip-, pipe- and surge spring root irrigation) combining two water levels (20 m(3)/hm(2) and 120 m(3)/hm(2)). The ef...

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