نتایج جستجو برای: low irrigation limit

تعداد نتایج: 1399114  

2005
C. P. Baillie S. R. Raine

Between 1995 and 2003 sugarcane farmers in Bundaberg had access to limited irrigation water. Over this time water allocations were effectively a quarter of the requirements for a fully irrigated crop. In response to this problem irrigation strategies were developed to assist farmers. Field investigations focused on the performance of water winch and furrow irrigation systems, which make up 91% ...

Journal: :یافته های تحقیقاتی در گیاهان زراعی و باغی 0
نادر حیدری مؤسسه تحقیقات فنی و مهندسی کشاورزی، کرج

deficit- irrigation is one of the measures for water saving and optimum application of water in surface irrigation. however, lack of enough evidences, doubts on the proper application of deficit- irrigation, dissemination of research results and its application by the farmers are of practical challenging issues. this paper summarizes and analyzes some research results on deficit- irrigation in ...

ژورنال: علوم آب و خاک 2008
رضائی, عبدالمجید , یوسفی‌آذر, معصومه ,

To improve a complex character such as yield with low heritability, the use of indirect selection through other characters and a selection index based on different effective traits is recommended. This study was conducted to evaluate different selection methods by using 23 F2:4 wheat lines derived from the cross of Virmarin (susceptible cultivar) and Sardari (tolerant cultivar) at Research Farm...

رضائی, عبدالمجید , یوسفی‌آذر, معصومه ,

To improve a complex character such as yield with low heritability, the use of indirect selection through other characters and a selection index based on different effective traits is recommended. This study was conducted to evaluate different selection methods by using 23 F2:4 wheat lines derived from the cross of Virmarin (susceptible cultivar) and Sardari (tolerant cultivar) at Research Farm...

Journal: :تحقیقات مهندسی کشاورزی 0
علیرضا توکلی عضو هیئت علمی مؤسسه تحقیقات کشاورزی دیم، مراغه

in order to obtain the maximum benefit, yield increasing and its stability a supplemental irrigation field experiment was conducted as split plot arranged in a randomized complete block design (rcbd) with three replications during 1999-2002 at maragheh agricultural research station of dari. the treatments included four levels of irrigation (average of three years: 0, 95, 151 and 207 mm) as main...

1999
Ivan W. Selesnick

This paper describes a new class of maximally at lowpass recursive digital lters. The lters are realizable as a parallel sum of two allpass lters, a structure for which low-complexity low-noise implementations exist. Note that, with the classical Butterworth lter of degree N, which is retrieved as a special case, it is not possible to adjust the delay (or phase-linearity). However, with the mor...

Journal: :Agronomy for Sustainable Development 2011

Journal: :Journal of appropriate technology 2023

The COVID-19 preventive measurements restrict farm-workers from travel to their farms, social distancing and lockdown prevent them getting infected. Consequently, farming irrigation activities are dramatically reduced due shortage of reduction crops production. To find solutions, various technologies have been adopted remotely connect farmers with farm-fields homes perform the same work as they...

Journal: :European of agriculture and food sciences 2022

Concentrations of heavy metals in irrigation water and soil were examined to determine the level contamination a particular channel Gazipur, Bangladesh. In this conduit, effluent from households, industries, municipalities was combined with water. The study carried out order estimate pollutant loads along wastewater conceptualize seasonal changes composite wastewaters. A total six nine contamin...

Journal: :علوم باغبانی 0
مجتبی دلشاد رقیه علفتاحی تکتم سادات تقوی مسعود پارسی نژاد

abstract low water holding capacity of soilless substrates increases water stress and waste of nutrient solution. irrigation time management can reduce such problems. in this research, responses of hydroponically cultured greenhouse strawberries were evaluated under different irrigation schedules. in first step, plant daily water need was estimated and then delivered to plants through two metho...

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