Resultados de búsqueda - "field experiment"

Evaluating phloem sap δ13C as a short-term indicator of drought stress in banana por Vantyghem, M., Merckx, Roel, Hood-Nowotny, R., Swennen, R., Heiling, M., Resch, C., Dercon, G.

“…We have developed a phloem sap sampling method for banana and evaluated it in a field experiment in Arusha, Tanzania. We compared δ13Cphloem with δ13Cbulk under two different watering treatments (irrigated and rainfed) and assessed diurnal variations by sampling in the morning (08:00) and at noon (12:00). …”
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Assessing residue and tillage management options for carbon sequestration in future climate change scenarios por Aditi, Kumari, Abbhishek, Kumar, Chander, Girish, Singh, Ajay, Falk, Thomas, Mequanint, Melesse B., Cuba, Perumal, Anupama, G., Mandpati, Roja, Nagaraji, Satish

“…We report the findings from a long-term field experiment (9 years) used to simulate the effect of residue and tillage management in Maize-chickpea sequential and Maize-Pigeonpea intercropping systems for the four possible future climate projections using APSIM model. …”
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Productivity trade-off with different water regimes and genotypes of rice under non-puddled conditions in Eastern India por Kar, Ipsita, Sudhir-Yadav, Mishra, Amit, Behera, Basudev, Khanda, Chandramani, Kumar, Virender, Kumar, Ashok

“…To understand the trade-off with different water management and rice genotypes under non-puddled conditions, a field experiment was conducted during 2014–2015 on a sandy clay loam soil of Bhubaneswar, Odisha. …”
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Calibrating the leaf color chart for nitrogen management in different genotypes of rice and wheat in a systems perspective por Shukla, Arvind K., Ladha, Jagdish K., Singh, V.K., Dwivedi, B.S., Balasubramanian, Vethaiya, Gupta, Raj K., Sharma, S.K., Singh, Yogendra, Pathak, H., Pandey, P.S., Padre, Agnes T., Yadav, R.L.

“…The leaf color chart (LCC)–based real‐time N management can be used to optimize/synchronize N application with crop demand or to improve existing fixed split N recommendations. We conducted a field experiment during 2001–2003 at Modipuram, India, to determine the threshold LCC values for N application in rice and wheat, assess the need for basal N application, calibrate the LCC with a chlorophyll meter (SPAD), and work out the economics of rice–wheat systems. …”
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Effects of drought-tolerant rice varieties and alternate wetting and drying on irrigation water, rice yield, water productivity and farmers’ income por Akpoffo, Marius A.Y., Kone, Pierre, Guindo, Jonathan, Dossou-Yovo, Elliott Ronald

“…The objective of this study was to evaluate the effects of drought-tolerant rice varieties and alternate wetting and drying (AWD) on irrigation water, rice yield, water productivity and farmers’ income. A 2-years field experiment was conducted from 2023 to 2024 at Selingue and Mbewani in Mali. …”
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A Blueprint for Building Resilience and Food Security in MENA and SSA Drylands: Diversifying Agriculture With Neglected and Underutilized Species por Devkota, Krishna, Devkota Wasti, Mina Kumari, Mabhaudi, Tafadzwanashe, Nangia, Vinay, Attaher, Samar, Jean Boroto, Ruhiza, Timsina, Jagadish, Siddique, Kadambot H M

“…Despite a negative trade balance, NUS significantly contributed to dietary calories, surpassing wheat. A field experiment in Merchouch, Morocco, confirmed that NUS offered a higher economic value per unit than wheat, and outperformed conventional crops across key indicators. …”
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Impact of climate change on millet yield under different fertilization levels in three agroecological zones of Niger Republic por Mohamed, A.M.L., Seyni, S., Mkuhlani, S., Chemura, A., Faye, B., Kadir, S.A., Gadedjisso-Tossou, A., Auwalu, B.M.

“…The CERES-Millet model was calibrated using field experiment data collected during the 2021 and 2022 rainy seasons at two locations in Niger Goungoubon (2021 and 2022) and Fandou (2022). …”
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Reducing greenhouse gas emissions and improving rice yield: The influence of cultivars, soil salinity, and nitrogen management por Islam, S.M. Mofijul, Gaihre, Yam Kanta, Islam, Mohammad Nazrul, Suvo, Tamal Patra, Sander, Bjoern Ole, Habib, Muhammad Ashraful, Islam, Aminul, Nayak, Swati, Singh, Upendra, Hasegawa, Toshihiro, Islam, Md. Rafiqul

“…A multi-location field experiment was conducted in Bangladesh over two consecutive Boro (dry) and Aman (wet) seasons, examining four rice cultivars and two nitrogen rates in both non-saline soils of Gazipur and coastal saline soils of Satkhira. …”
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Graphical approaches to support the analysis of linear-multilevel models of lamb pre-weaning growth in Kolda (Senegal) por Lancelot, R., Lesnoff, Matthieu, Tillard, E., McDermott, John J.

“…An AMM was developed to study the effect of ewe deworming with morantel on lamb preweaning growth in a field experiment involving 182 lambs in 45 herds 10 villages in Kolda, Senegal. …”
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Urine as an alternative fertilizer in agriculture: effects in amaranths (Amaranthus caudatus) production por Adeoluwa, O.O., Cofie, Olufunke O.

“…This study involved a field experiment to determine the response of green amaranths to the application of 100% urine, 2/3 urineN+1/3 compost N, 100% compost N,NPK (15:15:15) at the rate of 100kgNha-1 and control with no fertilizer treatment using farmers' participatory approach. …”
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Manure, biogas digestate and crop residue management affects methane gas emissions from rice paddy fields on Vietnamese smallholder livestock farms por Vu, Quynh Duong, Neergaard, Andreas de, Tran T, Hoang Q, Ly, Proyuth, Jensen L

“…RS)], were compared in a field experiment, also including two mineral nitrogen fertiliser controls (N1, N2). …”
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Hill placement of manure and fertilizer micro-dosing improves yield and water use efficiency in the Sahelian low input millet-based cropping system por Ibrahim, A., Abaidoo, Robert C., Fatondji, D., Opoku, A.

“…The objective of this study was to determine the optimal combination of fertilizer micro-dosing and manure application rates for improved millet yield and enhanced water use efficiency in low input millet-based cropping system. A two-year field experiment was conducted at a research station in Niger using a randomized complete block design with three replications. …”
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Integrated use of fertilizer micro-dosing and Acacia tumida mulching increases millet yield and water use efficiency in Sahelian semi-arid environment por Ibrahim, A., Abaidoo, Robert C., Fatondji, D., Opoku, A.

“…There is, therefore, a need to develop an improved technology for conserving soil moisture and enhancing crop yields in the Sahelian semi-arid environment. A 2-year field experiment was conducted to investigate the mulching effects of Acacia tumida pruning relative to commonly applied organic materials in Niger on millet growth, yields and water use efficiency (WUE) under fertilizer micro-dosing technology. …”
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Management of Turcicum leaf blight [Exserohilum turcicum (Pass.) Leonard & Suggs] of maize (Zea mays L.) through integration of host resistance and fungicide at Bako, western Ethio... por Debela, M., Dejene, M., Mengesha, A.

“…The objectives of this study were to determine the effect of maize varieties integrated with fungicides on epidemics of turcicum leaf blight; to determine the effect of turcicum leaf blight severity on yield and yield components of maize; and to assess the cost and benefit of using fungicides. The field experiment was conducted at Bako Agricultural Research Center in 2014 main cropping season using six maize varieties (BH-540, BH-543, BH-546, BH-660, BH-661 and AMHQ-760) integrated with foliar sprays of the systemic fungicide propiconazole (Tilt) at the rate of 350 ml ha-1 and the contact fungicide mancozeb (Dithane M-45) at 2.6 kg ha-1. …”
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Effects of nematode infection and mulching on the yield of plantain (Musa spp., AABgroup) ratoon crops and plantation longevity in Southeastern Nigeria por Coyne, Danny L., Rotimi, O., Speijer, P., Schutter, B. de, Dubois, T., Auwerkerken, A., Tenkouano, A., Waele, D. de

“…Agbagba (Musa spp., AAB-group, false horn) yield and plantation longevity were examined in a field experiment at the High Rainfall Station of the International Institute of Tropical Agriculture (IITA) at Onne in southeastern Nigeria. …”
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Effect of elevated temperature on the onset and rate of mesocarp cell death in berries of Shiraz and Chardonnay and its relationship with berry shrivel por Bonada, Marcos, Sadras, Victor Oscar, Fuentes, Sigfredo

“…Methods and Results: We assessed the progression of mesocarp cell vitality and the degree of shrivelling in berries from a factorial field experiment combining two thermal regimes (elevated temperature and control) and two cultivars (Shiraz and Chardonnay). …”
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Is Pre-Veraison Irrigation Cut-Off more Convenient than Post-Veraison Water Stress as a Strategy to Improve Grape Composition in Vitis vinifera 'Tempranillo' in Spain? por Yeves, Antonio, Pérez, Diego, Risco, David, Intrigliolo, Diego S., Castel, Juan R.

“…The question then is whether it would be better to concentrate the water applications during the pre-veraison or during the postveraison period. A field experiment was carried out in a 'Tempranillo' vineyard during 2007 and 2008 where different irrigation strategies were applied at two crop levels (Normal and High). …”
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Differences in specific chloride toxicity to Diospyros kaki cv. "Rojo Brillante" grafted on D-lotus and D-virginiana por Visconti, Fernando, Intrigliolo, Diego S., Quinones, Ana, Tudela, Laura, Bonet, Luis, De-Paz, José M.

“…Season-end leaf contents of Na, CI, N, P, K, Ca, Mg, S, B, Cu, Fe, Mn and Zn, toxicity symptoms and fruit yields were assessed. In the field experiment, one irrigation water quality was used, and just leaf chloride contents, water potential and fruit yields were evaluated. …”
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Restoration of mixed forest : effects of fencing, site preparation and distance to existing mixed forest on planted European beech and natural tree regeneration por Szydło, Mateusz

“…Data collection took place in a field experiment established in 2011 in Sveaskogs ecopark Raslången in northern Scania (Skåne). …”

Thinning response to weather variations in Norway spruce por Alm, Erika

“…The analysis was conducted with tree cores sampled from the thinning and fertilization experiments, a large field experiment with sites all over the country. Four sites in southern Sweden were selected. …”
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