Results 71 to 80 of about 38,341 (190)
Controlling root flies with exclusion fences? [PDF]
Protecting crops with insect fences is currently being considered as an alternative to row cover netting and synthetic insecticides. Previous studies reported efficacies of such fences with 50-90 % reduction in crop damage by root flies.
Hommes, Martin, Siekmann, Gitta
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Integration of Elymus repens control and post-harvest catch crop growing in organic cropping systems [PDF]
In Northern Europe, Elymus repens (L.) Gould infestations are traditionally controlled by repeated stubble cultivation in the period from harvest to ploughing in autumn. However, in organic farming, post-harvest tillage is undesirable due to the need for
Bertelsen, Inger +2 more
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A catalogue of aphid parasitoids (Hymenoptera: Braconidae: Aphidiinae) from India [PDF]
A catalogue of aphidiine parasitoids (Hymenoptera: Braconidae: Aphidiinae) associated with various aphids species occurring in India was compiled. The present catalogue with 125 species under 22 genera has been further reinforced with not only all the ...
Akhtar, Mir Samim +2 more
core +1 more source
The expression of rDNA in hybrids inherited from only one progenitor refers to nucleolar dominance. The molecular basis for choosing which genes to silence remains unclear.
Hong Long +3 more
doaj +1 more source
Post-harvest sown catch crops – results from two years of organic field trials [PDF]
Post-harvest sown catch crops should be sown as early as possible in order to obtain maximum biomass and nutrient uptake in the harvested crop, as biomass production decreased by 2-3.5 percent per day, when time of sowing was postponed throughout August.
Askegaard, M. +2 more
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Durante el segundo semestre de 1984 se realizó el ensayo con el fin de determinar el efecto de la aplicación de Agrostemín, Ergostím, Agrovitae y vitamina C en el cultivo del rábano Raphanus sativus L.
Londoño I. Jorge +3 more
doaj
Pheronema raphanus Schulze 1895
Pheronema raphanus Schulze, 1895 Material examined. Australia: Western Australia: WAM Z35337, Z98331, Z98330, respectively 2 specimens and 1 lot (4 fragments), Perth Canyon (31 o 59 33 S, 115 o 10 59 E to 31 o 00 07 S 115 o 10 41 E, Figure 1), 508 478 m, J. Fromont and C.
Tabachnick, Konstantin +3 more
openaire +1 more source
Composição química de plantas de cobertura como indicador de emissão de N2O. [PDF]
A versão atual do Guia para Elaboração de Inventários Nacionais de Emissões de Gases de Efeito Estufa do IPCC adicionou a quantificação da contribuição de emissões de N2O em decorrência da decomposição de resíduos vegetais no cálculo do fator de emissão ...
ANDRADE, A. M. +9 more
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Diversité et gestion des vers blancs (coléoptère, Scarabaeoidea) en riziculture pluviale sur les Hautes Terres malgaches [PDF]
A Madagascar, les Scarabées dénommés communément vers blancs, constituent une des problématiques des cultures pluviales. Ces insectes terricoles sont présents dans toutes les régions de la grande Ile.
Aberlenc, Henri-Pierre +6 more
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El objetivo fue probar el efecto enriquecedor del jugo de hojas de rábano (Raphanus sativus) y de espinaca (Spinacia oleracea), sobre un patrón de fermento de salvado de trigo (Triticum aestivum) en la producción de Daphnia pulex.
Margarita L. Rojas +3 more
doaj

