نتایج جستجو برای: 12 cropping seasons

تعداد نتایج: 611308  

Journal: :Journal of Plant breeding and Crop Science 2021

Cereal crops especially maize production in Ethiopian Central Rift Valley is affected by biotic and abiotic production. This study was conducted for two seasons (2015-2016) the best cropping system identified using Randomized Complete Block Design with three replications. The experiment had six treatments (1) Continuous mono-cropping under conventional practice (CN), (2) continuous mono conserv...

2016
Aaron F. Fox Tania N. Kim Christine A. Bahlai J. Megan Woltz Claudio Gratton Douglas A. Landis

Maize stover is beginning to be used as a cellulosic biofuel feedstock in the Midwestern United States; however, there are concerns that stover removal could result in increased soil erosion and loss of soil organic matter. Use of a winter cover crop following maize harvest has the potential to mitigate these impacts and may have additional benefits by providing continuous living cover in annua...

2017
Jesse B. Naab George Y. Mahama Iddrisu Yahaya P. V. V. Prasad

Conservation agriculture (CA) practices are being widely promoted in many areas in sub-Saharan Africa to recuperate degraded soils and improve ecosystem services. This study examined the effects of three tillage practices [conventional moldboard plowing (CT), hand hoeing (MT) and no-tillage (NT)], and three cropping systems (continuous maize, soybean-maize annual rotation, and soybean/maize int...

Journal: :به نژادی نهال و بذر 0
سیروس محفوظی s. mahfoozi بخش تحقیقات غلات، موسسه تحقیقات اصلاح و تهیه نهال و بذر، صندوق پستی 4119-31585، کرج عظیم اکبری a. akbari مهرداد چایچی m. chaichi امیر قلی سنجری a. g. sanjari سید محمود ناظری s. m. nazeri سعید عابدی اسکویی s. abedi-oskooee غلامرضا امین زاده

pishgam was selected from the progeny of a cross between barakat iranian bread wheat cultivar and chinese 90-zhong 87 winter-habit ( bkt/90-zhong 87) in 1995. the f1 generation seeds were planted in karaj station in 1995-96 cropping season. selected-bulk method was applied to segregating generations from f2 to f5 generations for characters such as winter hardiness, plant height, straw strength,...

Journal: :Asia-pacific Journal of Atmospheric Sciences 2021

Drought management in Sri Lanka is mostly limited to relief provision due the shortage of scientific details develop sufficient drought risk management. Therefore, spatio-temporal variability droughts two cropping seasons, Yala (May–August) and Maha (October–March) Lanka, have been investigated using Standardized Precipitation Evapotranspiration Index (SPEI). The SPEI-4 at August (SPEI-4August)...

2014
Samia Berraies Mohamed Salah Gharbi Salah Rezgui Amor Yahyaoui

Septoria leaf blotch (SLB), caused by Zymoseptoria tritici (Desm.) Quaedvlieg & Crous, 2011 (teleomorph: Mycosphaerella graminicola (Fuckel) J. Schröt.), is an important wheat disease in the Mediterranean region. In Tunisia, SLB has become a major disease of durum wheat (Triticum turgidum L. subsp. durum [Desf.] Husn.) particularly during favorable growing seasons where significant yield losses...

2014
Lana Clara Chikhungu Nyovani Janet Madise

BACKGROUND Child under nutrition is an underlying factor in millions of under-five child deaths and poor cognitive development worldwide. Whilst many studies have examined the levels and factors associated with child under nutrition in different settings, very little has been written on the variation of child under nutrition across seasons. This study explored seasonal food availability and chi...

2016
Boubié Vincent Bado Papa Abdoulaye Seck Valère Cesse Mel Alassane Aw Mandiaye Diagne

One of the main factors limiting the yield and productivity of irrigated rice in the Sahel of West Africa is the high cost of fertilizers and inefficient use of nutrients in the cropping systems. A two-year experiment was conducted over four consecutive seasons at Ndiaye (16°11’N, 16°15’W) and Fanaye (16°32’N, 15°11’W) along the Senegal River Valley to investigate alternative fertilizer managem...

2008
TOBIN D. NORTHFIELD DEAN R. PAINI JOE E. FUNDERBURK STUART R. REITZ

Frankliniella spp. (Thysanoptera: Thripidae) thrips damage a variety of crops, feed on a broad range of hosts, and often migrate into cropping systems from adjacent vegetation. To determine potential sources of Frankliniella spp. thrips on crops, annual cycles of abundance of Frankliniella occidentalis (Pergande), Frankliniella fusca (Hinds), Frankliniella bispinosa (Morgan), and Frankliniella ...

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