نتایج جستجو برای: micro irrigation

تعداد نتایج: 157099  

Journal: :Visegrad Journal on Bioeconomy and Sustainable Development 2023

Abstract In the presented paper, we evaluated quality of work and economics use irrigation system consisting micro-sprinklers. The experiment took place on football field in countryside southwest Slovakia. original was replaced with a modern one, using control unit, rainfall sensor, in-ground distribution pipes consisted components forming main detailed equipment for irrigating an area 4,272 m ...

2017
Minghai Hong Wenzhi Zeng Tao Ma Guoqing Lei Yuanyuan Zha Yuanhao Fang Jingwei Wu Jiesheng Huang

Crop coefficients (Kc) are important for the development of irrigation schedules, but few studies on Kc focus on saline soils. To propose the growth-stage-specific Kc values for sunflowers in saline soils, a two-year micro-plot experiment was conducted in Yichang Experimental Station, Hetao Irrigation District. Four salinity levels including non-salinized (ECe = 3.4–4.1 dS·m–1), low (ECe = 5.5–...

2015
John Dalrymple Barry O'Mahony Elizabeth Levin Steven Greenland

The availability of water is a global issue which is predicted to become more pronounced in the future. As a large and relatively dry continent Australia is presented with a series of challenges within the agriculture sector. As a result, the adoption of appropriate, efficient and effective irrigation systems is an important element for future sustainability. In various Australian growing regio...

2017
Eduardo Ferreira da Costa Nestor E. de Oliveira Flavio José Oliveira Morais Pedro Carvalhaes Dias Luis Fernando C. Duarte Andreu Cabot José A. Siqueira Dias

We present here the design and fabrication of a self-powered and autonomous fringing field capacitive sensor to measure soil water content. The sensor is manufactured using a conventional printed circuit board and includes a porous ceramic. To read the sensor, we use a circuit that includes a 10 kHz triangle wave generator, an AC amplifier, a precision rectifier and a microcontroller. In terms ...

Journal: :علوم گیاهان زراعی ایران 0
روح الله حسن زاده دانشجوی دکتری، اکولوژی گیاهان زراعی، پردیس بین الملل دانشگاه فردوسی مشهد محسن جهان دانشیار گروه زراعت دانشگاه فردوسی مشهد ناصر مجنون حسینی استاد، گروه زراعت، پردیس کشاورزی و منابع طبیعی دانشگاه تهران، کرج احمد نظامی استاد، گروه زراعت دانشگاه فردوسی مشهد پرویز رضوانی مقدم استاد گروه زراعت دانشگاه فردوسی مشهد

to investigate the effect of deficit irrigation and macro and micro fertilizers on morpho-physiological characteristics of satureja a field experiment was conducted in agricultural research station of haji-abad (hormozghan province-iran) a split plot randomized complete block design with three replications during the growing season of 2012-2014. irrigation treatments consisted of normal, modera...

2014
Timothy Murray Victor Lesniewski Amos G. Winter Alison Greenlee

The cylindrical filters presently used in drip irrigation systems frequently clog, increasing pressure loss and lowering the flow rate through the filters. This work investigates alternative filtration strategies that increase the reliability of, and are compatible with, existing systems. To test different filtration strategies, a drip irrigation test setup was built to measure the pressure los...

2016
R. G. Silva G. B. Leoni M. A. Versiani

Aims During biomechanical preparation of the root canal system, the cutting action of instruments on dentine result in the formation of hard-tissue debris, which can be packed in some areas of the root canal system, mainly in anatomical variations as isthmus, branches and flattening (1, 2). Accumulated hard-tissue debris in the root canal system may compromise thorough disinfection and filling ...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید