نتایج جستجو برای: 12 growing season 101 plant samples were taken from 2500 hectare wheat fields in tillering
تعداد نتایج: 18153510 فیلتر نتایج به سال:
Abstract In this investigation, which took place during the winter agricultural season of 2021-2022 in one fields located Al-Hindiya District Holy Karbala Governorate, purpose was to investigate effect various combinations herbicides on development and yield characteristics wheat as well a few weeds belonging genus Lolium. The experiment conducted out using randomized complete block design with...
The choice of variety for agricultural systems with multiple crops may differ from the one used in sole crop because of the changes in environmental conditions brought about by interspecific plant competition. Information about varietal performance under living mulch conditions as well as the suitability of the results of the official variety testing, conducted under conventional cropping condi...
This project is focused on the use of commercially available precision agriculture technology and tested for its capacity to perform variable-rate application of Nitrogen fertilizer in irrigated durum wheat in Maricopa, AZ. The technology tested in this study includes active-light canopy reflectance and displacement sensors, as well as GPS-based rate controllers for application equipment. Multi...
this study was aimed to assess wheat-grown fields health in gharessoo basin, golestan province, iran, using 79 fields in 8 villages in 2010. the samples were taken by quadrates. the number and the type of weeds were recorded at genera and species levels. in parallel, management data were recorded by questionnaire. species richness was defined as species number and shannon-wiener index, simpson’...
it is suggested that cultivars of wheat (triticum aestivum l.) with regulated growth and development would be able to produce higher yields under water-limited conditions, which is crucial in future food production. water use efficiency (wue) is worthy of exploration in this regard. in this study, the effects of nitrogen fertilizer levels (0, 40 and 80 kg nha-1) and a plant growth retardant (ch...
cucumber mosaic virus (cmv) is one of the causal agents of viral diseases that infected mint (mentha spp.). cmv is a member of the cucumovirus genus in bromoviridae family. the virus is naturally transmitted by aphids in a non-persistent manner.during growing season 2007-2008, leaf samples from plants of mint fields with symptoms of viral disease were collected in mint fieldas in tehran provi...
‘romanticism’ and ‘romantic’ are among the most controversial terms in literature. most readers, when encountering these words, would think of the well-known period of romanticism of the first three decades of the nineteenth century and the great six english poets known as ‘the big six’ of this period. however, romanticism does not belong to certain artists in a special period; one may seek ele...
abstract the present study deals with a comparison between reactive and pre-emptive focus-on-form in terms of application and efficiency. it was conducted in an intermediate english class in shahroud. 15 male learners participated in this research and their age ranged from 18 to 25. a course book, new interchange 3, and a complementary book were used. every session the learners gave lectures o...
The main sources of cadmium in soil-plant continuum in amounts that might present a hazard are liquid and solid wastes of sewage sludge, farm manures and fertilizers. In the southwest of Iran (Khuzestan Province) over 50,000 ha of land is under sugarcane (Saccarum officinarum) cultivation and more than 80,000 ha will be under sugarcane by the end of the year 2000. In these sugarcane fields, abo...
Cucumber mosaic virus (CMV) is one of the causal agents of viral diseases that infected mint (Mentha spp.). CMV is a member of the cucumovirus genus in Bromoviridae family. The virus is naturally transmitted by aphids in a non-persistent manner.During growing season 2007-2008, leaf samples from plants of mint fields with symptoms of viral disease were collected in mint fieldas in Tehran provi...
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