Your search found 8 records
1 Smeal, D; O’Neill, M. K.; Arnold, R. N. 2005. Forage production of cool season pasture grasses as related to irrigation. Agricultural Water Management, 76(3):224-236.
(Location: IWMI-HQ Call no: PER Record No: H037144)
2 Deng, X. P.; Shan, L.; Zhang, H.; Turner, N. C. 2006. Improving agricultural water use efficiency in arid and semiarid areas of China. Agricultural Water Management, 80(1-3):23-40.
Irrigated farming ; Water use efficiency ; Water conservation ; Water deficit ; Water stress ; Arid zones ; Water harvesting ; Terraces ; Mulching ; Fertilization / China / Yellow River / Ningxia / Inner Mongolia / Loess Plateau
(Location: IWMI-HQ Call no: PER Record No: H038418)
3 Kirkham, M. B. 1983. Elemental content of soil, sorghum and wheat on sludge-injected agricultural land. Agriculture, Ecosystems and Environment, 9:281-292.
Sorghum ; Wheat ; Fertilization ; Fertilizers ; Sewage sludge ; Inorganic fertilizers ; Organic fertilizers ; Soil properties / USA / Manhattan / Kansas
(Location: IWMI-HQ Call no: P 7693 Record No: H039576)
4 Kumar, S. N.; Aggarwal, Pramod Kumar; Rani, D. N. S.; Saxena, R.; Chauhan, N.; Jain, S. 2014. Vulnerability of wheat production to climate change in India. Climate Research, 59(3):173-187. [doi: https://doi.org/10.3354/cr01212]
Climate change ; Adaptation ; Temperature ; Agricultural production ; Crop production ; Wheat ; Models ; Carbon dioxide ; Fertilization ; Emission ; Soils / India
(Location: IWMI HQ Call no: e-copy only Record No: H046905)
The production of wheat, a crop sensitive to weather, may be influenced by climate change. The regional vulnerability of wheat production to climate change in India was assessed by quantifying the impacts and adaptation gains in a simulation analysis using the InfoCrop-WHEAT model. This study projects that climate change will reduce the wheat yield in India in the range of 6 to 23% by 2050 and 15 to 25% by 2080. Even though the magnitude of the projected impacts is variable, the direction is similar in the climate scenarios of both a global (GCMMIROC3.2.HI) and a regional climate model (RCM-PRECIS). Negative impacts of climate change are projected to be less severe in low-emission scenarios than in high-emission scenarios. The magnitude of uncertainty varies spatially and increases with time. Differences in sowing time is one of the major reasons for variable impacts on yield. Late-sown areas are projected to suffer more than the timely-sown ones. Considerable spatial variation in impacts is projected. Warmer central and south-central regions of India may be more affected. Despite CO2 fertilization benefits in future climate, wheat yield is projected to be reduced in areas with mean seasonal maximum and minimum temperatures in excess of 27 and 13°C, respectively. However, simple adaptation options, such as change in sowing times, and increased and efficient use of inputs, could not only offset yield reduction, but could also improve yields until the middle of the century. Converting late-sown areas into timely-sown regions could further significantly improve yield even with the existing varieties in the near future. However, some regions may still remain vulnerable despite the adaptation interventions considered. Therefore, this study emphasises the need for intensive, innovative and location-specific adaptations to improve wheat productivity in the future climate.
5 Negussie, A.; Achten, W. M. J.; Norgrove, L.; Mekuria, Wolde; Hadgu, K. M.; De Both, G.; Leroy, B.; Hermy, M.; Muys, B. 2016. Initial effects of fertilization and canopy management on flowering and seed and oil yields of Jatropha curcas L. in Malawi. BioEnergy Research, 9:1231-1240. [doi: https://doi.org/10.1007/s12155-016-9767-6]
Fertilizer application ; Fertilization ; Nitrogen fertilizers ; Inorganic fertilizers ; Canopy ; Flowering ; Seed production ; Oilseeds ; Jatropha curcas ; Biofuels ; Bioenergy ; Agronomy ; Agronomic practices ; Pruning implements ; Planting ; Spacing ; Soil sampling / Malawi
(Location: IWMI HQ Call no: e-copy only Record No: H047879)
Appropriate canopy management, including planting density and pruning, and application of fertilizer may increase flowering success and seed and oil yields of Jatropha curcasL.Twofieldexperimentswereperformedfrom2009to 2011 in Balaka, Malawi, to assess the effect of planting density and pruning regime and single fertilizer application (N, P, and K) on male and female flower number and seed and oil yields of J. curcas. Planting density influenced flower sex ratio and female flower number. Branch pruning treatments did not influence the flower sex ratio but reduced seed and final oil yield by 55 % in the following year. It is claimed that J.curcas can be grown on soils with low nutrient content, but this study revealed that yield was low for non-fertilized trees. WeobservedhigherseedandoilyieldsathigherNapplication rates(upto203±42%seedand204±45%oilyieldincrease) compared with the non-fertilized control. The study suggests thatcurrentlyusedheavypruningpracticeisnotrecommended for J.curcas cultivation, although it needs further longer term investigation. Applying nitrogen fertilizer is effective in increasing yield.
6 Pradhan, Surendra K.; Cofie, Olufunke; Nikiema, Josiane; Heinonen-Tanski, H. 2019. Fecal sludge derived products as fertilizer for lettuce cultivation in urban agriculture. Sustainability, 11(24):7101. [doi: https://doi.org/10.3390/su11247101]
Faecal sludge ; Organic fertilizers ; Urban agriculture ; Lettuces ; Cultivation ; Fertilization ; Soil fertility ; Greenhouse crops ; Sustainable products ; Crop yield ; Nutrients ; Waste management ; Waste treatment ; Composting ; Pellets ; Sludge dewatering ; Enrichment ; Hygiene ; Faecal coliforms ; Soil chemicophysical properties ; Poultry manure / Ghana / Accra
(Location: IWMI HQ Call no: e-copy only Record No: H049661)
(0.27 MB) (272 KB)
Fecal sludge (FS) contains a significant amount of plant nutrients. FS (treated/untreated) has been used as soil ameliorant in several countries. Use of FS-based compost on lettuce may meet reservations due to possible microbiological contamination. The objectives of this research are: (1) To determine the fertilizer value of different formulations of sawdust and fecal sludge compost (SDFS) pellets, and (2) to compare the effect of these SDFS formulations with poultry manure, commercial compost, mineral fertilizer, and non-fertilization on lettuce cultivation. The SDFS products were made by enriching, and pelletized with ammonium sulphate, mineral-NPK, or ammonium sulphate + muriate of potash + triple superphosphate. Lettuce was cultivated in a greenhouse and an open field. The result showed that the saleable fresh weight lettuce yield obtained from all SDFS pellets with/without enrichments were higher than those obtained from commercial compost, poultry manure, mineral fertilizer, or no fertilizer. Cultivation in the open field gave higher yields than those in the greenhouse. No helminth eggs were detected in composts or lettuces. Some fecal coliforms were detected in lettuces fertilized with almost all fertilizers tested, including NPK and non-fertilized control. A properly treated fecal sludge-based fertilizer can be a sustainable solution for lettuce production, which helps urban and peri-urban agriculture.
7 Yan, Y.; Wu, C.; Wen, Y. 2021. Determining the impacts of climate change and urban expansion on net primary productivity using the spatio-temporal fusion of remote sensing data. Ecological Indicators, 127:107737. (Online first) [doi: https://doi.org/10.1016/j.ecolind.2021.107737]
Climate change ; Urbanization ; Remote sensing ; Net primary productivity ; Moderate resolution imaging spectroradiometer ; Normalized difference vegetation index ; Landsat ; Precipitation ; Fertilization ; Land use ; Land cover ; Ecosystems ; Grasslands ; Farmland ; Forests / China / Beijing
(Location: IWMI HQ Call no: e-copy only Record No: H050393)
https://www.sciencedirect.com/science/article/pii/S1470160X21004027/pdfft?md5=96d56d824ca51ab536802d836e7e164b&pid=1-s2.0-S1470160X21004027-main.pdf
https://vlibrary.iwmi.org/pdf/H050393.pdf
https://vlibrary.iwmi.org/pdf/H050393.pdf
(9.65 MB) (9.65 MB)
Climate change (CLC) and urban expansion (URE) have profoundly altered the terrestrial net primary productivity (NPP). Many studies have determined the effects of CLC and URE on the NPP. However, these studies were conducted at low resolutions (250–1000 m), making it difficult to detect many smaller new urban lands, and thus potentially underestimating the contribution of URE. To accurately determine the contributions of CLC and URE to the NPP, this study takes Beijing as an example and uses an Enhanced Spatial and Temporal Adaptive Reflectance Fusion Model (ESTARFM) to fuse the spatial resolution of the Landsat Normalized Difference Vegetation Index (NDVI) and the temporal resolution of the Moderate Resolution Imaging Spectroradiometer (MODIS) NDVI to generate a new NDVI with a high spatio-temporal resolution. Compared with the Landsat NDVI, the NDVI fused by the ESTARFM is found to be reliable. The fused NDVI was then inputted into the Carnegie–Ames–Stanford Approach (CASA) model to generate the NPP with a high spatio-temporal resolution, namely, the 30-m NPP. Compared with the 250-m NPP generated by directly inputting the MODIS NDVI into the CASA model, the 30-m NPP as a new ecological indicator is more accurate than the 250-m NPP. Due to the high resolution of the 30-m NPP and its increased ability to detect more new urban lands, the total loss of the 30-m NPP caused by URE is much higher than that of the 250-m NPP. For the same reason, especially in rapidly urbanized areas, the contribution ratio of URE to the 30-m NPP is much higher than that to the 250-m NPP. Moreover, in natural vegetation cover areas, CLC, which is measured by the interannual changes in temperature, precipitation, and solar radiation, is the leading factor of the change in the NPP. However, within the urban areas, residual factors other than CLC and URE, such as the introduction of exotic high-productivity vegetation, irrigation, fertilization, and pest control, dominate the change in the NPP. The results of this study are expected to contribute to a deeper understanding of the influences of CLC and URE on terrestrial ecosystem carbon cycles and provide an important theoretical reference for urban planning.
8 Akinseye, F. M.; Birhanu, B. Z.; Ajeigbe, H. A.; Diancoumba, M.; Sanogo, K.; Tabo, R. 2023. Impacts of fertilization management strategies on improved sorghums varieties in smallholder farming systems in Mali: productivity and profitability differences. Heliyon, 9(3):E14497. [doi: https://doi.org/10.1016/j.heliyon.2023.e14497]
Fertilization ; Strategies ; Organic fertilizers ; Inorganic fertilizers ; Smallholders ; Farming systems ; Small-scale farming ; Sorghum ; Agricultural productivity ; Profitability ; Benefit-cost ratio ; Crop yield ; Rainfall ; Soil fertility ; Farmers / Mali / Bamako / Bougouni / Koutiala
(Location: IWMI HQ Call no: e-copy only Record No: H051835)
https://www.cell.com/action/showPdf?pii=S2405-8440%2823%2901704-8
https://vlibrary.iwmi.org/pdf/H051835.pdf
https://vlibrary.iwmi.org/pdf/H051835.pdf
(2.68 MB) (2.68 MB)
Sorghum is an important cereal crop cultivated by smallholder farmers of Mali, contributing significantly to their food demand and security. The study evaluated different fertilization strategies that combined organic and inorganic fertilizer applications with three sorghum varieties. The experiments were conducted over three cropping seasons (2017–2019) in three sites (Bamako, Bougouni, and Koutiala respectively) within the Sudanian region of Mali. Our results showed a significant effect of season, variety, and fertilization strategies on grain and stalk yields. Grain yield increased by 8–40% in Koutiala, 11–53% in Bougouni, and 44–110% in Bamako while the average stalk yield was above 5000 kg ha- 1 with fertilized treatment compared to unfertilized treatment in the three sites. Fadda performed the best variety, mean grain yield was 23% and 42% higher than that of Soumba and Tieble, respectively. Similarly, there was a progressive increase in grain yield with an increasing level of poultry manure (PM) from 0 to 150 g/hill and cattle manure (CM) from 0 to 100 g/hill. However, the application of 100 g/hill of CM and PM plus 3 g/ hill of Di-ammonium Phosphate (DAP) increased yield by 8% and 12% respectively compared to only CM or PM treatments. The results further revealed higher yield gain by 51% (Bamako), 57% (Koutiala), and 42% (Bougouni) for T10-[PM (100 g/hill) + Micro-D_DAP (3 g/hill)] equivalent to 73 kgNha- 1 than others (T2-T9), but not proportionate to the highest value-cost ratio (VCR). Radar charts used to visualize sustainable intensification (SI) performance in the three domains (productivity, profitability, and environment) showed that the environmental variable has a direct influence on productivity, meanwhile profitability across the strategies ranged from low to moderate value across sites and different fertilizer strategies. Our study, therefore, recommends the use of multiple-choice fertilizer strategies includingT2-CM (50 g/hill)+PM(50 g/hill), T5-DAPMicro-D (3 g/hill), T6-DAP41:46:00 and T9-PM(50 g/hill) alongside with improved sorghum varieties tested, for higher productivity and profitability across the region.
Powered by DB/Text WebPublisher, from
