نتایج جستجو برای: attainable yield

تعداد نتایج: 198687  

Journal: :Nature sustainability 2021

Oil palm production in Indonesia illustrates the intense pressure that exists worldwide to convert natural ecosystems agricultural production. has increased because of expansion cultivated area rather than due average-yield increases. We used a data-rich modelling approach investigate how intensification on existing plantations could help meet oil demand while preserving fragile ecosystems. fou...

Journal: :Mathematics of Computation 1965

ژورنال: علوم زراعی ایران 2019
Deihimfard, Reza, Mohammadi-Ahmadmahmoudi, Esmaeil, Noori, Omid,

The rapid population growth and the need for more agricultural production necessitate more attention to water shortage and enhancing water productivity. To assess water productivity and supply:demand ratio index in sugar beet, this experiment was carried out using SUCROS growth simulation model. Long-term climatic data and collecting questionnaires from farmers were used to assessing water prod...

2010
Yaroslav Urzhumov Fabrizia Ghezzo John Hunt David R Smith

We propose a general methodology and a set of practical recipes for the construction of ultra-broadband acoustic cloaks—structures that can render themselves and a concealed object undetectable by means of acoustic scattering. The acoustic cloaks presented here are designed and function analogously to electromagnetic cloaks. However, acoustic cloaks in a fluid medium do not suffer the bandwidth...

2017
Xavier Martínez-Rivera XAVIER MARTÍNEZ-RIVERA

The enhanced principal rank characteristic sequence (epr-sequence) of an n× n symmetric matrix over a field F was recently defined as `1`2 · · · `n, where `k is either A, S, or N based on whether all, some (but not all), or none of the order-k principal minors of the matrix are nonzero. Here, a complete characterization of the epr-sequences that are attainable by symmetric matrices over the fie...

علیرضا توکلی, , علیرضا سپاسخواه, , ابوالفضل عزیزیان, , منصور زیبایی, ,

Irrigation water Scarcity is the major limiting factor for crop production in irrigated farming. Therefore, optimal use of water is influenced by seasonal rainfall especially where the water price is high. Nitrogen also plays a key role in plant nutrition. In this study, wheat grain yield production as a function of applied water (irrigation plus seasonal rainfall) and nitrogen fertilizer (appl...

2013
Valiollah Babaeipour Seyed Abbas Shojaosadati Nader Maghsoudi

Tuning recombinant protein expression is an approach which can be successfully employed for increasing the yield of recombinant protein production in high cell density cultures. On the other hand, most of the previous results reported the optimization induction conditions during batch and continuous culture of recombinant E. coli, and consequently fed-batch culture have received less attention....

Journal: :Horticulturae 2023

Minimum environmental impact and improved resource efficiency is attainable for soilless cascade systems where the nutrient solution drained from a primary (donor) crop reused to fertigate secondary (receiver) crop. However, it not clear whether can completely satisfy needs of if productivity compromised. To test this hypothesis, prototype system was developed evaluated. assess performance in t...

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