نتایج جستجو برای: irrigation timing

تعداد نتایج: 128491  

Journal: :مهندسی بیوسیستم ایران 0
نایب عبدالرحمانی رزکه دانشجوی کارشناسی ارشد گروه مکانیک ماشین‏های کشاورزی دانشگاه ارومیه رحمان فرخی تیمورلو استادیار گروه مکانیک ماشین‏های کشاورزی دانشگاه ارومیه

nowadays, the limitation of water resources are added on the importance of detailed planning including the estimated timing and amount of irrigation water. this is possible with considering the soil indices and water balance. the measured soil field capacity of some with two lab and field measurement methods were 21% and 19/8% respectively and the permanent wilting point were determined 12% as ...

2012
John Hutton

w « superintendents in southern Florida have been slow to realize the importance of irrigation in our area because we have what appears to be abundant rainfall. Although southern Florida receives approximately 60 inches of rainfall a year, they are unevenly spaced. We have, in reality, two arid periods: one during July and August, and the other running from November to May, when our courses rec...

ژورنال: علوم آب و خاک 2012
علیرضا سفیانیان, , لقمان خداکرمی, ,

Precision farming aims to optimize field-level management by providing information on production rate, crop needs, nutrients, pest/disease control, environmental contamination, timing of field practices, soil organic matter and irrigation. Remote sensing and GIS have made huge impacts on agricultural industry by monitoring and managing agricultural lands. Using vegetation indices have been wide...

A. R. Sepaskhah A.A. Kamgar-Haghighi M. Abdolahipour S. Zand-Parsa T. Honar

Supplemental irrigation under prolonged drought conditions has a key role in providing water for transpiration of rain-fed fig trees. The effect of different times and amounts of supplemental irrigation at different distances from the tree trunk on quantity and quality of Estahban rain-fed fig production was evaluated during two years. A randomized complete block design with four replications o...

Journal: :Kansas Agricultural Experiment Station Research Reports 2021

Research was conducted at Colby and Tribune, KS, from 2018–2020 to evaluate irrigation strategies, hybrid maturity, seeding rate on corn production. Irrigation strategies were a combination of frequency/timing (weekly or bi-weekly) applied pre- post-silking, amounts (1 1.5 inch/week). Hybrid maturities 108- 111-day hybrids planted 25,000 30,000 seeds/a. Average ranged 7.33 12.50 in. 8.41 13.44 ...

2008
David A. Goldhamer Mario Salinas

The impacts of three different water stresstiming patterns for three levels of seasonal applied water on production were evaluated in mature almond trees [Prunus dulcis (Mill.) Webb cv. Nonpareil] grown under high-evaporative demand conditions in the southern San Joaquin Valley of California. The stress timing patterns involved biasing water deficits to the pre-harvest or postharvest periods in...

2015
R. Kowsalya

-Water plays an important role in everyday’s life. Agriculture is a backbone of our country and it uses 85% of available fresh water for irrigation. Irrigation is the method of supplying the water to the plants artificially. In India, Farmers follow different irrigation systems to cultivate the crops. The different types of irrigation methods include sprinkler irrigation, drip irrigation, surfa...

2017
Lily R. Mundy Mark J. Gage Richard S. Yoon Frank A. Liporace

BACKGROUND The need for reoperation or wound infection treatments between pulsatile and gravity irrigation are statistically equivalent, however, it is unclear which method maximizes operative efficiency and expeditious irrigation. In this study we set out to determine the differences in irrigation rate between these various treatment methods. METHODS This was an ex-vivo experimental laborato...

Journal: :IEICE Transactions 2009
Takaaki Okumura Atsushi Kurokawa Hiroo Masuda Toshiki Kanamoto Masanori Hashimoto Hiroshi Takafuji Hidenari Nakashima Nobuto Ono Tsuyoshi Sakata Takashi Sato

Process variation is becoming a primal concern in timing closure of LSI (Large Scale Integrated Circuit) with the progress of process technology scaling. To overcome this problem, SSTA (Statistical Static Timing Analysis) has been intensively studied since it is expected to be one of the most efficient ways for performance estimation. In this paper, we study variation of output transition-time....

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