Results 1 to 10 of about 3,974,045 (292)

Robust relationship between yields and nitrogen inputs indicates three ways to reduce nitrogen pollution

open access: yesEnvironmental Research Letters, 2014
Historic increases in agricultural production came at the expense of substantial environmental burden through nitrogen pollution. Lassaletta et al (2014 Environ. Res. Lett.
Benjamin Leon Bodirsky   +1 more
doaj   +1 more source

L'activité de butinage des Apoides sauvages (Hymenoptera Apoidea) sur les fleurs de maïs à Yaounde (Cameroon) et réflexions sur la pollinisation des graminées tropicales [PDF]

open access: yesBiotechnologie, Agronomie, Société et Environnement, 2002
The gatering activity of wild bees (Hymenoptera Apoidea) on flowers of maize at Yaound (Cameroon) and further considerations on pollination of the tropical Gramineae.
Tchuenguem-Fohouo F.N.   +2 more
doaj  

Adubação e calagem para o feijoeiro irrigado em solo de Cerrado Fertilization and liming to the irrigated common bean crop on a "Cerrado" soil

open access: yesPesquisa Agropecuária Brasileira, 2000
Em três experimentos de campo, avaliaram-se os efeitos da calagem, da adubação de plantio e de N em cobertura, para o feijoeiro comum. No primeiro experimento, testaram-se doses de calcário (0, 3, 6, 9, 12, e 15 t ha-1); no segundo, a resposta de cinco ...
MOREL PEREIRA BARBOSA FILHO   +1 more
doaj   +1 more source

The Influence of Digestate and Mineral Fertilisers on Yields and Content of Nitrates and Ascorbic Acid in Kohlrabi Bulbs

open access: yesActa Universitatis Agriculturae et Silviculturae Mendelianae Brunensis, 2014
In a one-year vegetation pot experiment we compared the effect of the digestate from a biogas plant and mineral fertilisers on yield and quality parameters of kohlrabi, variety Moravia.
Tomáš Lošák   +7 more
doaj   +1 more source

YIELD OF ENERGY AND PROTEIN FROM GRAIN MAIZE HYBRIDS USING AGROTECHNICAL SYSTEM, OPTIMAL FOR THE CONDITIONS IN THE PLOVDIV REGION [PDF]

open access: yesJournal of Central European Agriculture, 2011
The yields of metabolizable energy for ducks and protein, so as the multiplication effect by different varieties of maize have been investigated. For the conditions in the Plovdiv region the hybrid PR35P12 had the highest yield of crude protein - 1368 kg/
VANYA DELIBALTOVA, Dimo PENKOV
doaj  

Climate change will limit the potential for intensification in Senegal

open access: yesEnvironmental Research Communications
Climate change poses an increasing threat to food security in sub-Saharan Africa. This study assesses the impact of climate change on millet yields and investigates how it may limit the potential for agricultural intensification.
A Mbengue   +7 more
doaj   +1 more source

Dostateczne uwilgotnienie gleby w regionie kujawsko-pomorskim a plonowanie pszenżyta ozimego

open access: yesAgronomy Science, 2003
The aim of the present paper was to define quantity relations between the yield of triticale and the sufficient moisture of the surface layer of the soil and to attempt to select the areas of differentiated conditions of triticale cultivation in relation
Eliza Kalbarczyk, Robert Kalbarczyk
doaj  

Rendimiento de materia seca y otros componentes en Leucaena leucocephala cv. Cunningham con el uso del Liplant

open access: yesPastos y Forrajes
En la Universidad Agraria de La Habana se producen bioestimuladores que han sido empleados con éxito en la producción agrícola de diferentes especies de plantas.
Hilda B Wencomo, Yudith Lugo
doaj  

Определяне на равнището на азотно торене при двуоткосно прибиране на зимна грахово-тритикалена смеска за производство на фураж

open access: yesПочвознание, агрохимия и екология, 2012
The influence of nitrogen fertilization on the productivity of forage апа crude protein of winter pea-triticale mixture during two-cut harvesting crops was studied. The experiment was conducted with winter forage pea variety “Mir” and triticale variety “
ТОДОР КЕРТИКОВ   +1 more
doaj  

Genotypes of Sechium spp. as a Source of Natural Products with Biological Activity

open access: yesLife
The genus Sechium P. Br. (Cucurbitaceae) includes ten species, two of which are edible. The inedible genotypes are in a fragile ecological niche, since they are not used by rural inhabitants. A rescue and genetic crossing program was designed to identify
Jorge Cadena-Iñiguez   +9 more
doaj   +1 more source

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