scholarly journals Diversité floristique et structure démographique des peuplements ligneux des parcours naturels sahéliens du Sud-Est du Niger : Cas de l’enclave pastorale « Dadaria » (Mainé-Soroa, Diffa)

2020 ◽  
Vol 14 (3) ◽  
pp. 06-721
Author(s):  
Issoufa Idrissa ◽  
Boubé Morou ◽  
Hamidou Abdourhamane ◽  
Saley Karim ◽  
Taffa Abdourhamane ◽  
...  
Keyword(s):  
Hierarchical Classification ◽  
Average Density ◽  
Calotropis Procera ◽  
Ziziphus Mauritiana ◽  
Floristic Diversity ◽  
Acacia Tortilis ◽  
Demographic Structure ◽  
Salvadora Persica ◽  
Balanites Aegyptiaca ◽  
Acacia Senegal

L’enclave pastorale de Dadaria située dans le département de Mainé-Soroa est devenue une zone de concentration d’animaux locaux et transhumants durant toute l’année. La présente étude vise à caractériser la diversité floristique et la structure démographique des groupements ligneux cette enclave. Les données floristiques et dendrométriques ont été collectées dans 53 placettes de 2500 m² et la régénération a été appréciée dans des placeaux de 25 m². Les résultats montrent une flore ligneuse très pauvre avec 10 espèces réparties dans 7 familles. Les familles les plus représentées sont les Mimosaceae (30%) et les Asclepiadaceae (20%). La classification hiérarchique ascendante (CHA) a permis de discriminer quatre groupements ligneux notamment le groupement à Calotropis procera et Ziziphus mauritiana, le groupement à Balanites aegyptiaca et Acacia senegal, le groupement à Leptadenia pyrotechnica et Salvadora persica et le groupement à Acacia tortilis et Maerua crassifolia. La densité moyenne des adultes varie selon les groupements ligneux de 10 à 35 individus/ha et celle de la régénération de 45 à 64 individus/ha selon les groupements. Les structures en diamètre et hauteur montrent une concentration des individus des premières classes sur l’ensemble des peuplements. Dans les perspectives d’une réhabilitation et d’une gestion durable des écosystèmes pastoraux, cette étude apporte des informations complémentaires sur l’état actuel des peuplements ligneux de Dadaria.Mots clés : Formation pastorale, diversité floristique, densité, régénération naturelle   English Title: Floristic richness and demographic structure of the woody populations of the natural sahelian routes of South-East Niger: Case of the pastoral enclave "Dadaria" (Mainé-soroa, Diffa)The pastoral enclave of Dadaria located in the department of Mainé-Soroa became an area of concentration of local and transhumant animals throughout the year. The study aims to characterize the floristic diversity and the demographic structure of the woody groups in this enclave. Floristic and dendrometric data were collected in 53 plots of 2500 m² and regeneration was assessed in 25 m² plots. The results show a very poor woody flora with 10 species distributed in 7 families. The most represented families are the Mimosaceae (30%) and the Asclepiadaceae (20%). The ascending hierarchical classification (CHA) discriminate four woody groups namely: the grouping with Calotropis procera and Ziziphus mauritiana, the grouping with Balanites aegyptiaca and Acacia Senegal, the grouping with Leptadenia pyrotechnica and Salvadora persica and the grouping with Acacia tortilis and Maerua crassifolia. The average density of adults varies according to the woody groups from 10 to 35 individuals / ha and that of regeneration from 45 to 64 individuals / ha depending to the groups. The diameter and height structures show a tree concentration of the first classes on all of the groupings. With a view of a future rehabilitation and sustainable management of pastoral ecosystems, this study provides additional information on the current state of the woody stands of Dadaria.Keywords: Pastoral training, floristic diversity, density, natural regeneration.

scholarly journals TREE DYNAMICS (1955-2012) AND THEIR USES IN SENEGAL’S FERLO REGION: INSIGHTS FROM A HISTORICAL VEGETATION DATABASE, LOCAL KNOWLEDGE AND FIELD INVENTORIES

2015 ◽  
Vol 326 (326) ◽  
pp. 25
Author(s):  
Morgane Dendoncker ◽  
Daouda Ngom ◽  
Caroline Vincke
Keyword(s):  
Local Knowledge ◽  
Ziziphus Mauritiana ◽  
Acacia Tortilis ◽  
Adansonia Digitata ◽  
Balanites Aegyptiaca ◽  
Boscia Senegalensis ◽  
Vegetation Database

Les écosystèmes sahéliens sont soumis à des pressions anthropiques et climatiques croissantes, avec des conséquences durables pour la végétation ligneuse. Les arbres jouent un rôle vital pour la population locale, et leur pérennité doit être assurée. La présente étude vise à caractériser la végétation ligneuse, ses utilisations et sa dynamique sur le long terme (1955-2012) dans la région sablonneuse du Ferlo au Sénégal, dans une zone anthropisée à proximité de deux forages. En 2012, des inven- taires ont été réalisés dans 30 placettes, ainsi que des enquêtes auprès d’éleveurs issus de 30 camps sur la dynamique de la végétation et l’utilisation des essences. Une base de don- nées historique a permis d’obtenir des don- nées complémentaires sur l’évolution de la diversité des essences ligneuses depuis 1955. Par ailleurs, une étude de la bibliographie    a permis de recenser toutes les utilisations potentielles des essences. Ces données ont été analysées pour en extraire la dynamique des services d’approvisionnement, en calcu- lant des indices d’utilisation pour les essences et des indices de services pour l’écosystème. En 2012, pour un couvert arboré de 3 % et une diversité spécifique de 12 essences diffé- rentes, les peuplements étaient dominés par deux essences sahéliennes, Balanites aegyp- tiaca et Boscia senegalensis. Le rapport entre arbres jeunes et adultes atteignait 70,5 %, ce qui pouvait indiquer un bon équilibre des essences dans les peuplements, mais 95 % des jeunes plants correspondaient à trois essences seulement, Balanites aegyptiaca, Boscia senegalensis et Acacia tortilis. Concer- nant la valorisation des différentes essences, les plus couramment utilisées étaient B. aegyptiaca et B. senegalensis, mais aussi A. senegal, une essence rare, Adansonia digitata et Ziziphus mauritiana. Les données indiquent un déclin de la diversité spécifique et du nombre de jeunes arbres entre 1955 et 2012, accompagné d’une proportion croissante d’es- sences sahéliennes. Les indices d’utilisation et de service suggèrent une dégradation des services d’approvisionnement, ce qui pourrait indiquer une vulnérabilité croissante de ces écosystèmes. 

scholarly journals Phytodiversité et productivité herbacée du futur site de pré-lâché d’autruche d’Afrique du Nord (Struthio camelus camelus L.) dans le Koutous, Niger

2020 ◽  
Vol 14 (2) ◽  
pp. 402-416
Author(s):  
Maïmounatou Ibrahim Mamadou ◽  
Maman Kamal Abdou Habou ◽  
Habou Rabiou ◽  
Ali Mahamane
Keyword(s):  
Diversity Index ◽  
Hierarchical Classification ◽  
Tribulus Terrestris ◽  
Acacia Tortilis ◽  
North African ◽  
Balanites Aegyptiaca ◽  
Struthio Camelus ◽  
The North ◽  
Plant Groups ◽  
Ascending Hierarchical Classification

L’autruche d’Afrique du Nord (Struthio camelus camelus) communément appelée autruche à cou rouge a disparu à l’état naturel au Niger depuis 2004. Le présent article est une contribution au processus de réintroduction de cette espèce, qui vise à caractériser la végétation du site dénommé « Tchillala » dans le Koutous, site pilote pour le pré-lâché de l’autruche. Les relevés phytosociologiques ont été effectués à l’aide de la méthode sigmatiste d’abondance-dominance de Braun-Blanquet dans 42 placettes de 1000 m² (50 m × 20 m). Dans chaque placette, la coupe de la phytomasse herbacée a été réalisée dans des carrés de rendement de 1 m². Au total, soixante-six (66) espèces réparties en cinquante un (51) genres et vingt-huit (28) familles ont été recensées. La classification hiérarchique ascendante des relevés a permis d’individualiser trois groupements végétaux : le groupement à Acacia tortilis et Tribulus terrestris, le groupement à Balanites aegyptiaca et Zornia glochidiata et le groupement à Leptadenia pyrotechnica et Echinochloa colona. La richesse spécifique de ces groupements végétaux varie de quarante un (41) à soixante-deux (62) espèces. L’indice de diversité de Shannon varie de 4,01 à 3,16 bits et l’indice d’équitabilité de Piélou de 0,56 à 0,67. La productivité moyenne de la phytomasse herbacée des trois groupements est de 0,48±0,17 tonnes de matière sèche par hectare et une capacité de charge moyenne de 0,07±0,02 UBT/ha/an. Les spectres biologiques des groupements montrent une dominance des thérophytes. Quant aux spectres phytogéographiques, ils montrent une dominance des espèces paléotropicales. Ce site possède un potentiel floristique pour faire le pré-lâchage des autruches.Mots clés : Struthio camelus camelus, phytosociologie, productivité, réintroduction, Koutous, Niger   English Title: Phytodiversity and herbaceous productivity of the future site of pre-release ostrich of North Africa (Struthio camelus camelus L.) in Koutous, Niger The North African ostrich (Struthio camelus camelus), commonly known as the Red-necked Ostrich, which has been extirpated from Niger since 2004. This article is a contribution to the reintroduction process of this species; aims to characterize the vegetation of the site called "Tchillala" in the Koutous, pilot site for the ostrich pre-release. The phytosociological surveys were carried out using the Braun-Blanquet sigmatism abundance-dominance method in 42 plots of 1000 m² (50 m × 20 m). In each plot, herbaceous phytomass was cut in yield squares of 1 m². A total of sixty-six (66) species divided into fifty-one (51) genera and twenty-eight (28) families were identified. The ascending hierarchical classification of the surveys has shown three plants groups such as Acacia tortilis and Tribulus terrestris group, Balanites aegyptiaca and Zornia glochidiata group and Leptadenia pyrotechnica and Echinochloa colona group. The species richness of these plant groups varies from 62 to 41 species. The Shannon diversity index varies from 4.01 to 3.16 bits and Piélou's equitability index from 0.56 to 0.67. The average productivity of the herbaceous phytomass of the three groups is 0.48 ± 0.17 tonnes of dry matter per hectare and an average carrying capacity of 0.07±0.02 TLU/ha/year. The biological spectra of the groups show a dominance of therophytes. As for phytogeographic spectra, they show a dominance of paleotropical species. This site has a floristic potential to pre-release the individuals of ostrich.Keywords: Struthio camelus camelus, phytosociology, productivity, reintroduction, Koutous, Niger.

Study of the floristic diversity of Acacia tortilis population- in Bechar region (Southwestern Algeria)

2019 ◽  
Vol 9 (4) ◽  
pp. 133-141
Author(s):  
Guenaia Abdelkader ◽  
Hasnaoui Okkacha ◽  
Bekkouche Assia
Keyword(s):  
Sustainable Use ◽  
Diversity Indices ◽  
Floristic Diversity ◽  
Acacia Tortilis ◽  
Important Species ◽  
Disturbance Index ◽  
Moricandia Arvensis ◽  
Biological Spectrum ◽  
Flora Diversity ◽  
Risk Loss

For the management and sustainable use of natural bio-resources it is necessary to quantify and valorize this heritage. In the case of the floristic diversity of Acacia tortilis, the only natural woody stand in Bechar-Algeria, scanty studies have been undertaken. Hence in this study, the general overview of the flora diversity state in the 58 plots of 9 stations was made by the analysis of various indexes: Shannon, Simpson, species evenness, floristic richness, disturbance index, biological and biogeographically spectra. We listed 103 species belonging to 37 families and 85 genus, the important plants belonged to the Asteraceae and Brassicaceae. The most important species are: Pulicaria crispa, Asteriscus graveolens, Launea arborescens, Matricaria pubescens, Moricandia arvensis, Farsetia aegyptiaca, Zilla macroptera. The biological spectrum indicated a dominance of the Chamaephytes and the predominance of the Therophytes; the phytogeographic spectrum showed an important endemism (44%) in which 36% species belong to the SaharoArabian element; The Shannon, Simpson, and Evenness diversity indices, were relatively high, thereby indicating a diversity variation between the stations, witch increased South towards North. It was prominent in Zouzfana, Taghit, and Abadla stations, and the higher values of disturbance Index reflected the greater level of anthropization in these courses. The future accumulation of this regression, many risk loss of the last naturally wall of desertification, biodiversity, national economy and sand advancement. Therefore, it is recommended to apply pastures protection, pastoral charge control, and elaborate an environmental value of this species. 

scholarly journals Prioritization and Selection of High Biomass Energy Producing Plant Species at Boset District, Central Ethiopia: An Ethnobotanical Approach 

2021 ◽  
Author(s):  
Tinsae Bahru Yifru ◽  
Berhane Kidane ◽  
Amsalu Tolessa
Keyword(s):  
Plant Species ◽  
Sustainable Use ◽  
Biomass Energy ◽  
Calotropis Procera ◽  
Sampled Data ◽  
High Biomass ◽  
Structured Interviews ◽  
Acacia Senegal ◽  
Selection Of Species ◽  
Selection Of

Abstract Background: In Ethiopia, about 92.3% of all the biomass energy is consumed by domestic households and the demand is growing from 10-14%. However, there are little/no practical experiences or documented indigenous knowledge on how traditional people identify and select high biomass producing plant species with short rotation periods at Boset District. Therefore, the present study was aimed at: (1) selecting and documenting high biomass energy producing plant species at Boset District; (2) identifying major predictor variables that influence the prioritization and selection of species; and (3) develop a Generalized Linear Model (GLM) to predict the selection of species. Methods: A total of 96 informants comprising 59 men and 37 women between the ages of 18 and 81 were sampled. Data were collected using structured interviews, guided field walk, discussions and field observations. Results: Collected data indicated that 88.5% of the informants involved in firewood collection, while 90% practiced charcoal making. A total of 1533.60 Birr per household on average was earned annually from this activity. A total of 25 firewood and/or charcoal plant species were identified and documented at Boset District. Of these, Acacia senegal, Acacia tortilis and Acacia robusta were the three best prioritized and selected indigenous high biomass producing species. Prosopis juliflora, Parthenium hysterophorus, Azadirachta indica, Calotropis procera, Cryptostegia grandiflora, Lantana camara and Senna occidentalis further grouped under introduced fuelwood species. Prediction of GLM assured sampled Kebeles and source of income generated from fuelwood species positively and significantly (p<0.001) related to selection of species. Higher efficiency to provide energy and heat; little or no smoke or soot; easier to cut and split the wood and easier availability were some of the main selection criteria. Conclusions: This study provides valuable information in selection and documenting of high biomass producing plant species for proper management and sustainable use at Boset District. The three most selected species (A. senegal, A. tortilis and A. robusta) should be further evaluated at laboratory to determine their energy values.

scholarly journals Structure et Régénération des Peuplements naturels de Balanites Aegyptiaca (L.) Del. et Ziziphus Mauritiana Lam. suivant un Gradient écologique dans la Région de Maradi au Niger

Afrika Focus ◽  
2020 ◽  
Vol 33 (1) ◽  
Author(s):  
Rabiou Habou ◽  
Moussa Massaoudou ◽  
Tougiani Abasse ◽  
Mahamane Ali ◽  
Mahamane Larwanou ◽  
...  
Keyword(s):  
Stand Structure ◽  
Woody Species ◽  
Food Sources ◽  
Ziziphus Mauritiana ◽  
Balanites Aegyptiaca ◽  
Total Height ◽  
South Central ◽  
Consequent Reduction ◽  
Agrosilvopastoral System ◽  
Sahelian Zone

Les espèces ligneuses jouent un rôle important dans la vie des populations locales. Parmi les espèces couramment utilisées au Niger figurent Balanites aegyptiaca et Ziziphus mauritiana. Ces deux espèces sont exploitées comme sources alimentaires et pour divers produits médicinaux, avec comme conséquence une réduction de leurs peuplements. La présente étude vise à analyser la structure des peuplements et les modes de régénération des deux espèces dans deux secteurs agro-écologiques contrastées de la région de Maradi au centre sud du Niger. Au total, 60 relevés ont été délimités, d’une part dans des formations naturelles dominées par ces espèces, et d’autre part dans les systèmes agrosylvopastoraux des secteurs sahélien et sahélo-soudanien. Dans chaque placette et sur chaque arbre, le diamètre à 1,30 m au rasdu sol , la hauteur totale et deux diamètres perpendiculaires de houppier ont été mesurés. L’inventaire de la régénération a été effectué dans 5 placeaux. La nature de la régénération (drageon, marcotte, semis naturel), la hauteur totale et le nombre de tiges de chaque plantule ont été notés. La densité de B. aegyptiaca ne varie significativement entre sites et entre secteurs. Par contre, la densité de Z. mauritiana varie significativement entre sites et entre secteurs. En effet, le site de Birni Lallé, situé dans le secteur sahélien strict, et le site de Kegil dans le secteur sahélo-soudanien ont les densités les plus élevées de Z. mauritiana avec respectivement 66,4 ± 52,5 et 77,5 ± 61,4 arbres/ha. L’analyse de la distribution des tiges par classe de diamètre montre que pour les deux espèces, les individus jeunes sont bien représentés. Cela suggère une bonne régénération de ces espèces. L’analyse de la densité et nature de régénération montre que les deux espèces se régénèrent essentiellement par drageonnage. En réponse au ramassage des fruits pour diverses utilisations, les espèces B. aegyptiaca et Z. mauritiana ont développé des stratégies alternatives de propagation en zone sahélienne. Cette aptitude à la propagation végétative permet aux deux espèces de s’adapter en zones arides caractérisées par la sécheresse et les hautes températures. MOTS CLÉS : DISTRIBUTION DES ESPÈCES LIGNEUSES, B. AEGYPTIACA, Z. MAURITIANA, MARADI, NIGER, SAHÉLO-SOUDANIEN [83] afrika focus — Volume 33, Nr. 1, 2020 — pp. 83-104 RABIOU HABOU, MOUSSA MASSAOUDOU, TOUGIANI ABASSE, MAHAMANE ALI, MAHAMANE LARWANOU & PATRICK VAN DAMME Wood species play an important role in the life of local communities. Among the species commonly used in Niger, are Balanites aegyptiaca and Ziziphus mauritiana. This species are exploited as food sources and as various medicinal products, with a consequent reduction in their populations. The present study aims to analyze the stand structure and the regeneration modes of the two species in two contrasting agro-ecological sectors of the Maradi region in south central Niger. A total of 60 surveys were delineated in natural formations dominated by these species and in agrosilvopastoral system in the Sahelian and Sahelo-Sudanian zones. On each tree, the diameter at 1.30 m from the ground, the total height and two perpendicular tree crown diameters were measured. The inventory of natural regeneration was carried out in 5 plots delineated in each plot. The mode of reproduction of the regeneration (suckers, marcots, natural seedlings) was recorded as well as the total height and the number of stems of each juvenile were. The density of B. aegyptiaca does not vary significantly between sites and between sectors. The Birni Lallé site, located in the strict Sahelian zone, and the Kegil site in the Sahelo-Sudanese sector stand out in terms of Z. mauritiana density with respectively 66.4 ± 52.5 and 77.5 ± 61.4 trees. /Ha. The analysis of the diameter class structure shows that for both species, young individuals are well represented. This suggests strong regeneration among these species. The analysis of the density and nature of regeneration shows that the two species regenerate mainly by suckering. In response to the collection of fruits for various uses by local populations, B. aegyptiaca and Z. mauritiana have developed alternative propagation strategies in the Sahelian zone. This ability to propagate vegetatively allows these two species to adapt to arid areas characterized by drought and high temperatures. KEY WORDS: DISTRIBUTION OF WOODY SPECIES, B. AEGYPTIACA, Z. MAURITIANA, MARADI, NIGER, SAHELO-SUDANESE

scholarly journals Antifungal Activity and Fourier Transform Infrared Spectrometric Characterization of Aqueous Extracts of Acacia senegal and Acacia tortilis on Phytopathogenic Fungi

2019 ◽  
pp. 1-11
Author(s):  
Al-Otibi Fatimah
Keyword(s):  
Fourier Transform ◽  
Antifungal Activity ◽  
Functional Groups ◽  
Aqueous Extract ◽  
Phytopathogenic Fungi ◽  
Aqueous Extracts ◽  
Acacia Tortilis ◽  
Acacia Senegal ◽  
High Concentrations ◽  
Scanning Electron

Objective: To evaluate the in vitro antifungal activity of aqueous extracts of Acacia senegal (A. senegal) and Acacia tortilis (A. tortilis) against three phytopathogenic fungi (viz., Alternaria alternata [A. alternata], Helminthosporium rostratum [H. rostratum] and Fusarium solani [F. solani]). Methods: Crude aqueous extracts of A. senegal and A. tortilis at 1%, 2.5% and 5% concentrations were used for screening. Antifungal activities of the extracts were evaluated against three phytopathogenic fungal strains (A. alternata, H. rostratum and F. solani) by poisoned food technique. Scanning electron microscopy (SEM) of the treated and untreated mycelia was employed to analyze the ultrastructural changes and Fourier-transform infrared (FTIR) spectrometry analysis was performed to identify important functional groups. Results: Aqueous extract of A. tortilis at high concentrations exhibited moderate inhibitory activity against the selected fungal strains. The aqueous extract of A. senegal showed no effect on A. alternata, while exhibited very mild activity against H. rostratum and F. solani at high concentrations (2.5% and 5%). Scanning electron microphotographs of the untreated fungal cells showed no structural changes (well‒defined mycelium and conidia without any distortion), whereas the treated cells showed structural distortions, twisted and wrecked mycelia and showed the presence of vesicles on the surface. FTIR analysis showed the presence of important functional groups such as alcohols, carboxylic acids and aromatic compounds. Conclusion: Results from this study indicate that the aqueous extracts of both A. senegal and A. tortilis have the potential to be used as natural fungicidal agents in the management of diseases caused by plant pathogenic fungi.

scholarly journals Analyse De L’état De La Diversité Floristique Des Plateaux Suivant Un Gradient D’aridité Nord- Sud Dans La Réserve De Biosphère Du W Du Niger

2018 ◽  
Vol 14 (3) ◽  
pp. 156
Author(s):  
Mamadou Aïssa Jazy ◽  
Soumana Douma ◽  
Ali Mahamane ◽  
Saadou Mahamane
Keyword(s):  
Hierarchical Classification ◽  
Biosphere Reserve ◽  
Woody Species ◽  
Floristic Diversity ◽  
Plant Resources ◽  
Rainfall Gradient ◽  
African Species ◽  
The North ◽  
Guiera Senegalensis ◽  
Sida Cordifolia

Introduction: In Niger, the degradation of ecosystems leads to a loss of biodiversity and an increase in the adverse effects of climate change, especially in the ecosystems contracted from the plateaux of the Niger W biosphere reserve. Objective: The objective of this study is to characterize the spatial variability of the flora according to the north-south rainfall gradient of the reserve. Methodology: Phytosociological surveys, an ascending hierarchical classification and a canonical analysis of correspondences between plant groups and environmental factors. Results-Discussion: The 126 inventoried species have 88 dicotyledons, 28 woody species, and 98 herbaceous species. The most common families are: Poaceae (21.42%), Fabaceae (12.69%), Rubiaceae (7.14%) and Convolvulaceae (6.34%). The biological spectrum is dominated by therophytes then microphanerophytes. The world chorology is marked by African species followed by palaeotropics or pantropicales, and at the African level, Sudano-Zambezian species are the most frequent. The presence of intermediate species (GC-SZ and GC-SZ-SahS) is noted. From north to south, 3 groups of plants were highlighted: the group with Sida cordifolia and Guiera senegalensis whose phytodiversity is reduced; Group II consisting of the subgrouping with Combretum nigricans and Microchloa indica and the subgrouping with Combretum micranthum and Gardenia sokotensis floristically rich, with however a regeneration dominated by Guiera senegalensis; grouping with Loudetia togoensis and Acacia macrostachya, in good state of conservation. Conclusion: The study made it possible to characterize floristically the various landscapes along the rainfall and anthropic gradient. Thus, in view of the structures of the stands observed, the distribution of floristic diversity increases according to a gradient of decreasing aridity from the periphery to the internal part of the reserve. From the north to the south there is a degraded part, a part gradually invaded by Guiera senegalensis and another well preserved. This work, which provides an overview of the state of conservation of the floristic diversity of the Niger W Biosphere Reserve, allows taking appropriate measures to safeguard our plant resources.

scholarly journals Effect of different tree leaf litters on yield and nutrient uptake of clusterbean-oat rotation in arid region of Rajasthan

2018 ◽  
Vol 33 (01) ◽  
Author(s):  
M. L. Soni ◽  
N. D. Yadava ◽  
Seema Bhardwaj ◽  
Birbal . ◽  
N. S. Nathawat ◽  
...  
Keyword(s):  
Grain Yield ◽  
Nutrient Uptake ◽  
Leaf Litter ◽  
Acacia Tortilis ◽  
Dalbergia Sissoo ◽  
Aegle Marmelos ◽  
Acacia Senegal ◽  
Citrus Aurantifolia ◽  
Cordia Myxa ◽  
Tree Leaf

The study was conducted at ICAR-Central Arid Zone Research Institute, Regional Research Station, Bikaner to study the effect of tree leaf litters on yield and nutrient uptake of clusterbean-oat rotation during 2010-11 and 2011-2012. Leaf litters of seven tree species viz. Mopane: Colophospermum mopane, Gum acacia: (Acacia senegal) , Umbrella tree: (Acacia tortilis) , Indian rosewood: (Dalbergia sissoo), Sour lime: (Citrus aurantifolia), Assyrian plum: (Cordia myxa) and Bengal quince: (Aegle marmeloswere) applied in microplots of 2 x 2 meter @ 2.5 t/ha. Chemical fertilizers were used as per recommendations of individual crop. The result showed that maximum grain yield of clusterbean was obtained with the application of leaf litter treatments of Citrus aurantifolia. The increase in grain yield was in the order of leaf litter treatments of Citrus aurantifolia, Dalbergia sissoo and Aegle marmelos, respectively. The residual effect of leaf litters of Citrus aurantifolia, Dalbergia sissoo and Aegle marmelos increased the grain yield of oat by 13.3-16.0 percentage in 2010-11 and 14.8-16.1 percentage in 2011-12, respectively. There was no significant effect of leaf litters of Cordia myxa and Acacia senegal on grain yield of clusterbean and oat. Litter addition had significant effect on nutrient uptake also. The mean uptake of nutrients was significantly higher in Citrus aurantifolia, Dalbergia sissoo and Aegle marmelos treatments as compared to control. The two years average data showed that the total uptake of N in clusterbean increased from 21.3 kg/ha in control to 32.2, 28.5 and 30.8 kg/ha in Citrus aurantifolia, Dalbergia sissoo and Aegle marmelos treatments, respectively. Nitrogen, phosphorus and potassium uptake was non-significant in the treatments Colophospermum mopane, Cordia myxa, Acacia tortilis and Acacia senegal

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