نتایج جستجو برای: spring crops
تعداد نتایج: 91186 فیلتر نتایج به سال:
This report has been drawn up by a subgroup of the Advisory Committee on Releases to the Environment (ACRE) in response to requests by the Secretary of State and the Agriculture and Environment Biotechnology Commission to assess the wider implications of the Farm-Scale Evaluations (FSEs) of genetically modified herbicide tolerant (GMHT) crops. ACRE's remit is currently limited to GMOs and the r...
Goal. To develop a model of the soil seed layer with optimal parameters structure density in subseed and structural components supraseed for crops depending on size their seeds. Methods. Field (small-plot), mathematical-statistical, computational. Results. As result conducted research composition sowing taking into account requirements seeds are defined. For plants small (millet) predominant ag...
The British government has launched a new public debate on genetically modified (GM) crops as the three-year ban on growing such crops commercially is due to finish next year. But field-scale trials of oilseed rape, which have been carried out in the UK during this time, have fuelled opponents of the new technology and studies elsewhere have raised further questions many believe need to be addr...
In this study, a model was developed to determine the optimal irrigation schedule for the Qazvin Plain in such a way that economic productivity is maximized with the amount of water available and the area under cultivation. The AquaCrop plant growth model was used to determine crop performance in different irrigation programs. The plant growth model was connected to the MATLAB programming envir...
As the name implies, a cover crop consists of plants grown primarily to keep the land covered, especially during the off-season or between cash crops. In temperate regions like most of Europe and North America, a cover crop sown immediately after the main crop harvest in fall is considered a winter cover crop. It will grow in the fall, either subjected to frostkill or go into relative dormancy ...
Soil compaction has a real effect on rice growth in the Mekong Delta. The correlation between soil and (tiller number plant height) paddy field An Giang province was evaluated 2020 Winter-Spring Summer-Autumn crops using Pearson's test. research results show that 0-20 cm from surface positive with tiller number, while height is non-significant. Therefore, prediction model for numbers constructe...
The mirid bugs Adelphocoris suturalis (Jakovlev), Adelphocoris lineolatus (Goeze) and Adelphocoris fasciaticollis (Reuter) (Hemiptera: Miridae) are common pests of several agricultural crops. These three species have vastly different geographical distributions, phenologies and abundances, all of which are linked to their reliance on local plants. Previous work has shown notable differences in A...
In a view of the predicted drought that has appeared in recent years and water shortage growing season, which is getting worse every year, problem retention soil increasing its humidity becomes exceptional importance. The field experiment was carried out 2009–2012 on grey brown podzolic developed from loess formations covering cretaceous marls with granulometric composition corresponding to med...
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