Search results for "intercrop"
showing 10 items of 23 documents
Attitudine alla consociazione di diverse leguminose foraggere mediterranee.
2011
Forage mixture productivity and silage quality from a grass/legume intercrop in a semiarid Mediterranean environment
2023
In semiarid environments of the Mediterranean region, intercropping is a sustainable agricultural system of long standing. In this area, the pea (Pisum sativum L.) is one of the most commonly grown legume crops. Little information is available on the quality of silages to be obtained from forage mixtures of pea intercropped with cereals or annual grasses. In this study, two experiments were conducted over the course of two growing seasons in Sicily (Italy) with the aim to determine the biomass production of forage crop mixtures and assess, only in the second experiment, the silage quality of grass and legumes. Four cereals and one annual grass species were grown in pure stand and in mixture…
Inhibition and recovery of symbiotic N2 fixation by peas (Pisum sativum L.) in response to short term nitrate exposure
2014
International audience; Cereal-legume intercrops are a promising way to combine high productivity and several ecological benefits in temperate agro-ecosystems. However the proportion of each species in the mixture at harvest is highly variable. N-fertilisation may be a mean for controlling these proportions (Naudin et al., 2010). Symbiotic N2 fixation (SNF) can be inhibited by nitrate exposure. Although the effect of nitrate on SNF has been extensively investigated different scales, few studies have highlighted the impact of different timings of nitrate exposure on the SNF apparatus (N2 fixation rate and nodule biomass) and on its ability to recover after nitrates removal. The aim of this s…
Forage production, N uptake, N2 fixation, and N recovery of berseem clover grown in pure stand and in mixture with annual ryegrass under different ma…
2011
In Mediterranean countries, forage grasses and legumes are commonly grown in mixture because of their ability to increase herbage yield and quality compared with monocrop systems. However, the benefits of intercropping over a monocrop system are not always realized because the efficiency of a grass–legume mixture is strongly affected by agronomic factors. The present study evaluated productivity, N2 fixation, N transfer, and N recovery of berseem clover (Trifolium alexandrinum) grown in pure stand and in mixture with annual ryegrass (Lolium multiflorum) under high or low defoliation frequencies and varying plant arrangements (sowing in the same row or in alternating rows). On average, the b…
Effetti della modalità di utilizzazione sulla produttività e sull’azotofissazione simbiotica del Trifolium squarrosum allevato in purezza o in consoc…
2011
Effects of Inter-cropping and a Herbicide on Management of Striga hermonthica on Sorghum
2017
Aims: The present work was undertaken to determine the effects of the herbicide chlorsulfuron and intercropping sorghum (cv.Wad-Ahmed) with cowpea (T100K-901-6 cv.) on S. hermonthica incidence and sorghum growth. Study Design: Randomized Complete Block Design (RCBD) with four replicates. Place and Duration of Study: A series of laboratory and greenhouse experiments was undertaken at the College of Agricultural Studies, Sudan University of Science and Technology (SUST) at Shambat, during the season 2013/2014. Methodology: Striga free or infested soil was placed in plastic pots (9 cm i .d) with perforations at the bottoms. Pots filled with Striga free soil (0 mg) were included as control for …
Retour d’expériences sur le semis-direct sous couvert sans glyphosate
2019
Cet article présente les travaux menés dans le cadre du projet ENGAGED. Ce projet a été initié en 2016 à la demande d'agriculteurs normands qui pratiquent le Semis Direct sous Couvert Permanent de légumineuses pérenne (luzerne, trèfle) dans des rotations avec colza, blé, orge. Il vise à construire des systèmes de cultures basés sur la couverture permanente avec des Indicateurs de Fréquence de Traitements (IFT) herbicide inférieur à 1 sans avoir recours à l’utilisation du glyphosate. La faisabilité technique et les performances économiques des systèmes de cultures seront évaluées. La première phase de ce projet consiste à identifier les leviers existants pour gérer les adventices sous un cou…
Legumes and the environment
2017
Prod 2017-358a BAP GEAPSI INRA; International audience; The ability of legumes to fix atmospheric nitrogen gives them a crucial role in sustainable farming systems. Their presence can provide several other valuable ecological services. In Europe these assets have been neglected whilst developing highinput farming systems for maximizing yields. Diverse strategies are presented for maximizing ecological services provided by legumes in order to re-integrate them in cropping systems. Key words: Inputs, intercrop, ecological services, mineralization, weeds, N-fixation, value chain The second plenary session of the International Legume Society conference was dedicated to talks on “Legume and envi…
Legumes in 21st century Europe: present and future importance in agri-food systems? New challenges for reseach.
2013
Intensification of agriculture since 1950 has globally led to the decline of grain legume crops, which currently represent less than 3 % of arable crops in France and Europe. Nevertheless, legumes have several major assets (i) as plant proteins for animal feed and human food and (ii) as plants fixing atmospheric N2 and thereby saving nitrogen inputs in cropping systems, and (iii) as diversification crops. The analysis of forage and grain legume producing systems in France showed that the dominant system results in a lock-in of the different factors limiting legume insertion into the current systems. But legumes could have a major role to play in the agroecological transition towards more su…