نتایج جستجو برای: sowing rate

تعداد نتایج: 965606  

Journal: :بوم شناسی کشاورزی 0
میلاد شریف روحانی محمد کافی احمد نظامی

shallot (allium altissimum regel.) is a medicinal, industrial and perennial plant that has underground tubers. it is one of the most important allium species in iran, which normally grows in semi-cold to very cold highlands. because of being a wild plant, shallot is encounter with water deficit during its growth season. therefore evaluation of water requirement of shallot is important. in order...

Journal: :علوم گیاهان زراعی ایران 0
خسرو محمدی مجید آقاعلیخانی سید علی محمد مدرس ثانوی

in order to study the effect of plant density and sowing date on ear economic yield and sugar content in sweet corn (zea mays l. cv. saccarata), a field experiment was conducted at tarbiat modarres university (tehran west) in 2004. the experiment was carried out using split plots based on randomized complete block design of 4 replications. four levels of sowing date (may 22th, june 10th, july 1...

2017
David Gobbett James Hunt

Agronomic research suggests Australian farmers may increase wheat yields by 13 to 47% and reduce risk of crop failures by sowing crops earlier than is currently practiced. This study investigated the potential to use remote sensing to assist in evaluating changes in farmer sowing date practices in response to research recommendations, using study paddocks in the southern Australian cropping reg...

2005
Ian M. Westbrooke Ralph G. Powlesland

This study investigates the hypothesis that tomtits are significantly less susceptible to 1080 poison operations when cereal rather than carrot bait applications are used, both at relatively low sowing rates. We made counts of territorial male tomtits along transects during standard 1080 possum control operations in 2001 to 2003. The transects had 3–5 kg ha sowing rates of either carrot or cere...

2016
Vera L. Hecht Vicky M. Temperton Kerstin A. Nagel Uwe Rascher Johannes A. Postma

Studies on the function of root traits and the genetic variation in these traits are often conducted under controlled conditions using individual potted plants. Little is known about root growth under field conditions and how root traits are affected by agronomic practices in particular sowing density. We hypothesized that with increasing sowing density, root length density (root length per soi...

Journal: :Environmental Health Perspectives 1994
V. BERAL N. ROBINSON

-An analysis of occupational incidence data for malignant melanomas and squamous-and basal-cell carcinomas of the skin in England and Wales from 1970 to 1975 is reported. The occupational pattern for melanomas of the trunk and limbs differed markedly from the pattern for melanomas of the head, face and neck. Office work was associated with a large excess of melanomas of the trunk and limbs. In ...

Journal: :Acta Agronómica 2022

There is a shortage of information about the ryegrass crop (Lolium multiflorum Lam.), especially regarding suitable sowing rate. Thus, present work aimed to determine most adequate rate for tetraploid cultivars. A population was sown at different densities: 150, 300, 600, 900, 1200, 1500, 1800 seeds/m². The number plants per m², percentage soil cover, leaf yield and green dry forage were evalua...

Journal: :علوم گیاهان زراعی ایران 0
محمد ابوطالبیان دانشگاه بوعلی سینا، دکترای اکولوژی گیاهان زراعی حسن راه چمندی دانشجوی ارشد گورز احمدوند دانشیار دانشگاه آژنگ جاهدی مربی مرکز تحقیقات کشاورزی

in order to study the effects of on-farm seed priming and sowing date on germination percentage, germination speed, and some growth indices of three soybean cultivars, a field experiment was carried out in three replications using a split plot factorial in a randomized complete block design. main plots were representative of two sowing date (5th and 21th of may), while subplots included combina...

Muhammad Shoaib Shafi Syed Azam Shah Syed Mahmood Shah Wisal Mohammad

Effects of organic manure (poultry manure) applied alone and integrated with inorganic fertilizer (urea) on yield and yield component, N-uptake and soil fertility in wheat-maize cropping system was evaluated in a field experiment at Nuclear Institute for Food and Agriculture, Peshawar, Pakistan. Poultry manure was applied alone and were integrated in different proportions with mineral nitrogeno...

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