Choose an application

• Reference Manager
• EndNote
• RefWorks (Direct export to RefWorks)

Green manure(Azolla) --- Food from Azolla

Choose an application

• Reference Manager
• EndNote
• RefWorks (Direct export to RefWorks)

This study was to assess the effect of different nutrient sources on the agroeconomic performance of potato (Solanum tuberosum var. Dosa) to offer farmers a more economical and sustainable alternative. For this purpose, an experimental device in completely randomized blocks with three sources of nutrients (mineral NPK fertilizer, green Tithonia diversifolia and laying hen droppings) was used. He had six (6) treatments and 3 repetitions. The treatments were defined in such a way as to satisfy the potassium requirements at a rate (180 kg/ha of K2O) necessary for the cultivation of the potato. The different treatments applied were: T0: Control, T1: Tithonia diversifolia, T2: chicken droppings, T3: mineral fertilizer, T4: (½Tithonia diversifolia+ ½ mineral fertilizer), T5: (½ chicken droppings +½ mineral fertilizer). The data collected on the growth variables (number of leaves, height of the plants, diameter at the collar, plant cover) and yield were subjected to analyzes of variance (ANOVA) and multiple comparisons of the means according to Duncan's test at the 5% threshold have been carried out. To test the profitability of the treatments used, an economic analysis was carried out. 

The treatments varied significantly between them. However, the results showed that: Treatments T2 and T5 were the most favorable to potato growth and yield. The highest yields were obtained respectively with treatments T5 (36.7 t/ha) and T2 (35.53 t/ha). T1 treatments; T4 and T3 gave statistically similar yields respectively of (20.55 t/ha), (20.01 t/ha) and (16.62 t/ha) and the lowest yield was obtained with T0 (7.44 t/ha). 

The economic analysis showed that the organic treatments alone (T1 and T2) or combined with mineral fertilizer (T4 and T5) may be best suited to the farming environment because they obtained an acceptability index (AI) higher than 2. However, given the limited incomes of farmers in Cameroon, T1 treatments (Tithonia diversifolia) and T5 (½ chicken droppings + ½mineral fertilizer) are the most recommended. Cette étude avait pour but d’évaluer l’effet de différentes sources d’éléments nutritifs sur les performances agroéconomiques de la pomme de terre (Solanum tuberosum var. Dosa) afin de proposer aux paysans une alternative plus économique et durable. A cet effet, un dispositif expérimental en blocs complètement randomisés avec trois sources d’éléments nutritifs (l’engrais minéral NPK, l’engrais vert Tithonia diversifolia et la fiente de poule pondeuse) a été utilisé. Il avait six (6) traitements et 3 répétitions. Les traitements ont été définis de manière à satisfaire les besoins en potassium à raison (180 kg/ha de K2O) nécessaire à la culture de la pomme de terre. Les différents traitements appliqués étaient : T0 : Témoin, T1 : Tithonia diversifolia, T2 : fiente de poule, T3: engrais minéral, T4 : (½ Tithonia diversifolia+ ½ engrais minéral), T5: (½ fiente de poule +½ engrais minéral). Les données collectées sur les variables de croissance (nombre de feuilles, hauteur des plantes, diamètre au collet, couvert végétal) et de rendement ont été soumises à des analyses de variances (ANOVA) et des comparaisons multiples des moyennes selon le test de Duncan au seuil de 5% ont été réalisées. Pour tester la rentabilité des traitements utilisés, une analyse économique a été réalisée. 
Les traitements ont varié significativement entre eux. Toutefois, les résultats ont montré que : Les traitements T2 et T5 ont été les plus favorables à la croissance et au rendement de la pomme de terre. Les rendements les plus élevés ont été obtenus respectivement avec les traitements T5(36,7 t /ha) et T2 (35,53 t/ha). Les traitements T1; T4 et T3 ont donné les rendements statistiquement similaires respectivement de (20,55 t/ha); (20,01 t/ha) et (16,62 t/ha) et le plus faible rendement a été obtenu avec T0 (7,44 t/ha).
L’analyse économique a montré que les traitements organiques seuls (T1 et T2) ou combinés à l’engrais minéral (T4 et T5) peuvent être les mieux adaptés en milieu paysan car ils ont obtenu un indice d’acceptabilité (IA) supérieur à 2. Cependant, au vu des revenus limités des paysans au Cameroun, les traitements T1 (Tithonia diversifolia) et T5 (½ fiente de poule + ½ engrais minéral) sont les plus recommandables.

Green manure --- Tithonia diversifolia --- laying hen droppings --- mineral fertilizer --- potato. --- Engrais vert. --- Tithonia diversifolia --- fiente de poule pondeuse --- engrais minéral --- pomme de terre. --- Sciences du vivant > Agriculture & agronomie

Choose an application

• Reference Manager
• EndNote
• RefWorks (Direct export to RefWorks)

Mucuna --- Corn --- Velvet-bean --- Green manure crops --- Intercropping --- Hill farming --- Farmers --- Agricultural innovations --- Agricultural systems --- Agricultural ecology --- Agriculture --- Agroecology --- Ecology --- Permaculture --- Farming systems --- Systems, Agricultural --- Systems, Farming --- Agricultural geography --- Farm management --- Innovations, Agricultural --- Technological change in agriculture --- Technological innovations --- Farm operators --- Operators, Farm --- Planters (Persons) --- Agriculturists --- Rural population --- Alpine agriculture --- Alpine farming --- Hill agriculture --- Hillside farming --- Mountain agriculture --- Mountain farming --- Interplanting (Intercropping) --- Cropping systems --- Catch crops --- Companion crops --- Crops, Green manure --- Green manures --- Manure crops, Green --- Green manuring --- Forage plants --- Corn plant --- Indian corn --- Maize --- Zea mays --- Zea --- Legumes --- Environmental aspects --- Innovations --- Technology transfer

Choose an application

• Reference Manager
• EndNote
• RefWorks (Direct export to RefWorks)

Sustainable agriculture aims to achieve the goal of food security, also maximizing the socio-economic benefits, and minimizing environmental drawbacks. Farming systems mostly relying on ecological processes and the reduced application of external inputs (fertilizers and pesticides), such as organic farming and integrated farming, can even contribute to the mitigation of global warming and of the desertification of soils. Conservation agriculture (CA) is also widely recognized as a farming system able to preserve soils from erosion and nutrient loss, increase soil organic matter and carbon sink capacity, and improve biological and physical fertility. Nevertheless, CA systems generally rely on the large use of agrochemicals (above all, herbicides and fertilizers) in order to sustain crop production, with negative consequences in terms of energy efficiency and environmental impact. This also does not enable an easy transfer of CA techniques into organic and integrated farming systems, a combination that might enhance the environmental benefits of these farming systems. In this regard, this Special Issue deals with the "Smart Management of Conservative, Organic, and Integrated Agriculture". We invited experts and researchers to contribute with original researches, reviews, and opinion pieces covering all topics related to organic, integrated, and conservative farming systems. The published articles concern with the most important aspects of these innovative systems, such as performances of farm machinery and agro-ecological strategies aiming at sustaining crop production whilst reducing the need for agrochemicals.

Research & information: general --- Biology, life sciences --- Technology, engineering, agriculture --- waste management --- economic evaluation --- biodegradable mulch --- polyethylene --- grapevine --- no-chemical --- organic agriculture --- sucker removal --- Vitis vinifera (L.) --- thermal --- weed management --- organic farming --- mulch --- weed dynamic --- cereal grain cover crop --- roller-crimper --- no-till --- cover crops --- green manure --- organic fertilizers --- carbon dioxide --- methane --- nitrous oxide --- dead mulch --- biodegradable plastic mulch --- conservation agriculture --- tomato --- cultivation systems --- Gliricidia sepium --- leguminous plants --- Leucaena leucocephala --- mineral fertilization --- cinnamon oil --- clove oil --- cover crop termination --- organic herbicides --- roller/crimper --- mulch-based system --- N leaching --- no-till organic system --- intercropping --- ecological intensification --- sustainable agriculture --- climate change mitigation --- cabbage --- fennel --- lettuce --- living mulch --- Mediterranean climate --- minimum tillage --- no-tillage

Choose an application

• Reference Manager
• EndNote
• RefWorks (Direct export to RefWorks)

This book is a printed edition of the Special Issue Fertilizer Application on Crop Yield that was published in Agronomy

organic N --- ammonia --- NPK amendments --- corn–soybean rotation --- soil acidity --- phosphorous --- maize yield response to K --- biofertilizer --- agroforestry system --- Copper --- organic farming --- soil nitrogen pools --- net returns --- mineral N --- grain quality --- fertilizer management --- nutrient expert for maize --- sustainability --- organic nutrients --- conservation agriculture --- agronomic response --- S fertilization --- global food demand --- Zea mays L. --- N fertilizer --- nitrogen recovery efficiency --- Bacillus pumilus --- Orychophragmus violaceus L. --- soil erosion --- soil health --- saline tract --- soil K supply --- soil N mineralization --- soil biota --- potassium --- production system --- nitrate reductase activity --- site-specific K management --- Value Cost Ratio --- durum wheat --- conventional farming --- nitrate --- soil organic matter --- grain yield --- integrated nutrient management --- K use efficiency --- rice-wheat system --- forage legume --- nitrogen physiological recovery --- NADH --- chemical fertilizers --- evergreen agriculture --- green manure --- N fertilization --- yield --- NADH-dehydrogenase --- wheat --- site-specific nutrient management --- hybrid rice --- NUE --- balanced use of fertilizers --- growth promotion --- calcium --- humid Mediterranean climate --- Complex I --- rice --- maize --- Zinc --- potentially mineralizable N --- Agrotain® urea --- economics --- nitrate assimilation --- management --- nitrogen uptake --- wheat yields --- nitrogen use efficiency (NUE) --- soil N supply --- maize crop manager --- long-term productivity