Resultados de búsqueda - "potassium"

Downward migration and transfer to plants of radiocaesium in Scottish soil profiles : a comparison with earlier studies por Thored, Kristin

“…Another aim was to study the transfer of 137Cs from soil to plant. Caesium resembles potassium and is readily fixed to clay minerals in the soil and weakly bound to organic matter. …”

Uso de fosfitos como estrategia de control de podredumbre morena en durazneros por Leone, Andrea Inés, Brambilla, Maria Virginia, Barbieri, Martin Osvaldo, Mitidieri, Mariel Silvina

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Respuesta del maíz (Zea mays) a fósforo y potasio en la zona cafetera de Dolores - Tolima por Vargas Bonilla, Hebert Luis, Herrera Vivas, Pedro Pablo, Arce González, Consuelo

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Hållbarhet hos kemiska metaboliter i hundurin por Andersson, Petra

Determinación de la composición nutricional de la carne de pollo argentina por Gallinger, Claudia Isabel, Federico, Francisco Javier, Pighin, Darío Gabriel, Cazaux, Nadina, Trossero, Mariana, Marsó, Agustina, Sinesi, Carlos

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Promoting the use of locally produced crops in making cereal-legume-based composite flours: an assessment of nutrient, antinutrient, mineral molar ratios, and aflatoxin content por Udomkun, Patchimaporn, Tirawattanawanich, C., Ilukor, J., Sridonpai, P., Njukwe, E., Nimbona, P., Vanlauwe, Bernard

“…Replacing wheat flour with rice flour significantly (P < 0.05) improved protein, fat, potassium, and phosphorus content in samples. The molar ratios of phytate or oxalate to minerals (calcium and zinc) in all composite flours were lower than the reported critical values, except phytate to iron. …”
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Maize crop nutrient input requirements for food security in sub-Saharan Africa por Berge, Hein F.M. ten, Hijbeek, Renske, Loon, Marloes P. van, Rurinda, Jairos, Tesfaye, Kinde, Zingore, Shamie, Craufurd, Peter Q., Heerwaarden, Joost van, Brentrup, Frank, Schröder, Jaap J., Boogaard, Hendrik L., Groot, Hugo L.E. de, Ittersum, Martin K. van

“…Here, we propose a generic and simple equilibrium model to estimate minimum input requirements of nitrogen, phosphorus and potassium for target yields in cereal crops under highly efficient management. …”
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Field based assessment of Capsicum annuum performance with inoculation of rhizobacterial consortia por Kaushal, M., Mandyal, P., Kaushal, R.

“…Transplants were planted into plots treated by NPK (nitrogen, phosphorus and potassium), fungicides, soil solarization, MeBr fumigation, PGPR and untreated soil. …”
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Quantifying leaf litter production, decomposition, and nutrient release in cacao plantations in southwest Nigeria por Oyedele, O.

“…The rates of nutrients release were in the following order Nitrogen>Potassium>Phosphorus. The nutrients release from cacao litter would play a significant role in the nutrition of the cacao tree.…”
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Digital map of chemical fertility of soils of continental Ecuador por Martin López, Javier Mauricio, Jimenez, Wilmer, Calahorrano, Oscar, Caicedo Flaker, Juan D., Silva, Mayesse Aparecida da

“…To contribute to the diagnosis, monitoring, and control of soil degradation in Ecuador, the digital Map of Chemical Fertility of Soils of continental Ecuador and continuous soil properties maps of organic matter (%), pH (Un), available phosphorus (mg/kg), available potassium (cmol/kg), cation exchange capacity (cmol/kg), base sum (cmol/kg), base saturation (%), electrical conductivity (dS/m), clay (%) and sand (%) were developed by using digital soil mapping approaches, 13,552 soil profile data, and 46 environmental covariables.. …”
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Soil quality evaluation for irrigated agroecological zones of Punjab, Pakistan: The Luenberger indicator approach por Sheikh, Asjad Tariq, Hailu, Atakelty, Mugera, Amin, Pandit, Ram, Davies, Stephen

“…For wheat and rice production, we find that SQI is most sensitive to changes in soil electrical conductivity (EC) and potassium (K). The SQI has direct relevance for site-specific decision-making problems where policymakers need to price land resources and conservation services to achieve agricultural and environmental goals.…”
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Yield trends and apparent nutrient balances in intensified and diversified rice-based cropping systems por Pascua Jr, S.R., Ventura, W., Agustin, E.O., Padre, A.T., Valencia, D.A., Marcos, T.F., Sta. Cruz, Pompe C., Obien, S.R., Ladha, J.K.

“…The highest residual effect was observed in tomato and sweet pepper to which the highest nitrogen (N), phosphorus (P) and potassium (K) rates were applied. Maize, sweet pepper, and tomato responded well to NPK application, garlic had a low response and mungbean had no response. …”
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Repurposing fertilizer subsidies in India: An economywide modelling analysis por Devi, Asha, Praveen, K. V., Sharma, Kriti, Pal, Barun Deb, Singh, Alka, Barman, Subrata, Reddy, K. R., Hanji, Shreya, Rao, Ch. Srinivasa

“…Fertilizer subsidies have led to greater price increases for phosphorus and potassium fertilizers than for urea, making urea the preferred choice among farmers. …”
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The cost of soil erosion in sub-Saharan Africa: Insights for policy por Bolo, Peter, Kinyua, Michael, Waswa, Boaz, Kihara, Job

“…With losses of about 50 kg of nitrogen (N), phosphorus (P), and potassium (K) per hectare per year, and 50–66% of yield – costing SSA approximately USD 68 billion annually – soil erosion impacts the socio-economic wellbeing of millions of households across SSA. …”
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The cost of soil erosion in sub-Saharan Africa: Insights for policy por Bolo, Peter, Kinyua, Michael, Waswa, Boaz, Kihara, Job

“…With losses of about 50 kg of nitrogen (N), phosphorus (P), and potassium (K) per hectare per year, and 50–66% of yield – costing SSA approximately USD 68 billion annually – soil erosion impacts the socio-economic wellbeing of millions of households across SSA. …”
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The impact of abandoned pastoral settlements on plant and nutrient succession in an African savanna ecosystem por Muchiru, A.N., Western, D., Reid, Robin S.

“…The various nutrients declined at different rates during the course of plant succession. Potassium, phosphorus and magnesium levels remained at twice offsite levels for over a century, creating islands of high fertility and high plant biomass in the savanna landscape. …”
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Participatory conservation tillage research: An experience with minimum tillage on an Ethiopian highland Vertisol por Astatke, A., Jabbar, M.A., Tanner, D.

“…A traditional practice of Chefe Donsa farmers—applying ash from their homesteads to their fields to enable early-sown crops to withstand frost—led to the verification of the yield-enhancing effect of inorganic potassium fertilizer on wheat. Farmer adoption of a minimum tillage production system increased the gross margin of wheat production by US$ 132 per hectare—based on 1999 prices—relative to the traditional flat seedbed system. …”
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Distribution of parasitic nematodes in Kenyan rice fields and their relation to edaphic factors, rainfall and temperature por Namu, J., Karuri, H., Alakonya, A.E., Nyaga, J, Njeri, E.

“…Canonical correspondence analysis of the relationship between soil properties and nematode abundance revealed a significant (P < 0.05) relationship between PPN abundance and potassium, sodium, sand and clay. The relationship between rainfall, minimum temperature and nematode genera was significant (P < 0.05) while maximum temperature was not significant (P = 0.928). …”
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Growth and substrate utilization patterns of a rhizopus stolonifer strain isolated from depolymerising rice husk por Odeniyi, O.A., Onilude, A.A., Ayodele, M.A.

“…Divalent ionic additions did not cause an increase in the growth rate, but0.1M potassium ions increased the growth recorded by 34.3% compared to the control by 72 hours. …”
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A novel RT-PCR approach for detection and characterization of citrus viroids por Bernad, Lucia, Durán-Vila, Núria

“…The homogenization of tissue inside scaled plastic bags followed by nucleic acid extraction using a SDS/potassium acetate method is recommended because of its efficiency, simplicity and low cost. …”
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