Browsing by Author "Mercado, Agustin R. Jr."

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  • Agronomic performance of eggplant on different rates of vermicast, inorganic fertilizer and cover crop
    Mercado, Agustin R. Jr.; Arcinal, Gil A.; Gabitano, Bensive Mahinay; Gonzaga, N.; Dorahy, C. (2012)
    The conventional use inorganic fertilizers is expensive and growers are looking towards alternative inputs such as compost, manure, and crop residues to improve/maintain soil fertility. There is a need to improve nutrient management by eggplant growers to manage inputs more efficiently. The use of vermicompost and worm juice is becoming popular issue as part of integrated nutrient and pest management in vegetables particularly in Solanaceous crops. Eggplant (Solanum melongena L.) is cultivated for the immature fruits which are either roasted, fried, stuffed, cooked pickled or processed. Young fruits are also eaten raw.
  • Agronomic performance of tomato to the different vermiccast types and rates
    Mercado, Agustin R. Jr.; Gonzaga, N.; Jayson, E.; Ellacer, S. (Claveria, Misamis Oriental, Philippines, World Agroforestry Centre, 2012)
    Vermicomposting is an affordable rapid method of processing organic waste with the help of the African night crawler earthworms and turn it into a great natural fertilizer. The used of vermicast is widely promoted to provide cheap sources of organic fertilizer particularly to small holders encouraging farm nutrient cycling, enhancing better household and community solid wastes management as well as achieving sustainable agriculture. Preliminary researches have been done evaluating the nutrients availability of different substrate materials that are locally available but there is still lack of information on agronomic performance of various crops in response to these products.
  • Agronomic response of eggplant on different rates of vermicast and inorganic fertilizer application
    Mercado, Agustin R. Jr.; Edralin, Don Immanuel A.; Arcinal, Gil A.; Gonzaga, N.; Reyes, Manuel R. (2014)
    The conventional use inorganic fertilizers is expensive and growers are looking towards alternative inputs such as compost, manures, and crop residues to improve/maintain soil fertility. There is a need to improve nutrient management by eggplant growers to manage inputs more efficiently. The use of vermicompost and worm juice is becoming popular issue as part of integrated nutrient and pest management in vegetables particularly in Solanaceous Crops. Eggplant (Solanum melongena L.) is cultivated for the immature fruits which are either roasted, fried, stuffed, cooked pickled or processed. Young fruits are also eaten raw.
  • Analysis of TDR-measured soil moisture retention and soil organic matter variability under conservation agriculture production systems in Claveria, Misamis Oriental
    Ella, Victor B.; Reyes, Manuel R.; Mercado, Agustin R. Jr. (Philippine Society of Agricultural Engineers (PSEA), 2012)
    By utilizing the principles of minimum soil disturbance, continuous mulch cover and Diverse species rotations; conservation aims to revitalize soil properties sustainably. Conservation agriculture production systems have significantly higher residual moisture content when compared to the conventional plow-based systems. In addition soil organic matter at the upper soil layer (0-15 cm) in all CAPS treatments exhibited consistently higher values than the deeper layer (15-30 cm) regardless of fertility level. However the soil organic matter at the uppermost soil layer (0-5 cm) did not exhibit a well-defined pattern of temporal variation over time although the soil organic matter appears to increase under conservation agriculture and decrease under conventional plow-based system after 2 years of cropping.
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    AVRDC Genebank accessions finding their niche in vegetable-agroforestry systems
    Mercado, Agustin R. Jr.; Javier, E. (Tainan, Taiwan: The World Vegetable Center (AVRDC), 2009)
    Summary: Several GRSU germplasm accessions from Vietnam, Thailand and Philippines have been evaluated in vegetable agroforestry systems (VAF) in Mindanao. VAF with suitable trees and vegetables has been shown to improves farm productivity and increases farmer income by 20-100% compared to non-VAF systems. (extracted from article)
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    Can vegetables be more productive under tree based systems?
    Mercado, Agustin R. Jr. (2008)
    This presentation discusses research on the potential of integrating tree crops into vegetable crop systems in Southeast Asia, working from the hypothesis that "in intensive vegetable production system in the uplands, monoculture systems are not sustainable, but integrating trees is feasible and offers better prospects." The economic viability of vegetable agroforestry systems can be improved by taking the recommended steps to decrease tree-vegetable competition, increase tree-vegetable complementarity, and use valuable trees.
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    Cassava varieties for conservation agriculture with trees in the Philippines
    Mercado, Agustin R. Jr.; Arcinal, Gil A.; Gabitano, Bensive Mahinay; Reyes, Manuel R. (2012)
    To identify cassava cultivar with high root yield and aboveground biomass to be used in Conservation Agriculture Production Systems (CAPS).
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    Conservation agriculture and tillage effects on soil organic matter and residual moisture content in selected upland crop production systems in the Philippines
    Ella, Victor B.; Reyes, Manuel R.; Padre, R.; Mercado, Agustin R. Jr. (2014)
    This presentation describes a study to analyze the influence of conservation agriculture and tillage on soil organic matter and residual moisture content in selected upland crop production systems in the Philippines
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    Conservation Agriculture for Food Security in Cambodia and the Philippines
    Boulakia, Stephane; Hok, Lyda; Phally, K.; Reyes, Manuel R.; Mercado, Agustin R. Jr.; Ella, Victor B.; Edralin, Don Immanuel A. (Greensboro, NC: North Carolina A&T State University, 2012)
    Degraded landscapes are expanding annually in Southeast Asia. Rural poverty in upland communities increases pressure on natural resources like forest, soil and water . These are the last “capital” for the poor and they are rapidly diminishing due to non-sustainable management. Such practices reduce agricultural productivity, which in turn heightens food insecurity and exacerbates poverty.
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    Conservation agriculture for food security in Cambodia and the Philippines
    Reyes, Manuel R.; Mercado, Agustin R. Jr.; Boulakia, Stephane; Ella, Victor B.; Dayo, H. (2011)
    This poster introduces the Long Term Research Activity (LTRA) 12 within the SANREM CRSP program. The objectives of this LTRA are to ensure food security and reverse soil degradation in Southeast Asia (Cambodia and the Philippines) through Conservation Agriculture practices. This research activity will take place throughout Phase IV of the SANREM CRSP, ending in 2014.
  • Conservation agriculture for food security in Cambodia and the Philippines.
    Boulakia, Stephane; Mercado, Agustin R. Jr.; Chabierski, Stephane; Ella, Victor B.; Hok, Lyda; Edralin, Don Immanuel A.; Reyes, Manuel R. (2012)
  • Conservation Agriculture for Food Security in the Philippines
    Mercado, Agustin R. Jr.; Ella, Victor B.; Edralin, Don Immanuel A.; Boulakia, Stephane; Reyes, Manuel R. (2012)
  • Conservation Agriculture Philippines: Agronomic and physiological efficiencies
    Gonzaga, A. B.; Mercado, Agustin R. Jr.; Reyes, Manuel R. (2013)
    Evaluate the productivity, profitability and soil sustainability of various corn-based cropping systems intercropped with several species of legumes in a sloping upland crop production area.
  • Conservation agriculture with trees (CAwT): Enhancing agroforestry economic benefits and environmental services
    Mercado, Agustin R. Jr. (2011)
    This was also presented at The Participatory Agroforestry Development for North Korea Training for Trainers, Pyongyang, North Korea, 25-29 July 2011; Soil Management and Crop Nutrition for Vegetable Production in Southern Philippines, NOMIARC, Malaybalay, Bukidnon, Philippines, 22-26 August 2011; Farmers Technology Forum, MOSCAT, Claveria, Misamis Oriental, Philippines, 16 September 2011; and the Reward for Environmental Services (RES) Forum in Mindanao, Philippines.
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    Decentralizing natural resource management: Emerging lessons from ICRAF collaboration in southeast Asia
    Lai, Cynthia; Catacutan, Delia C.; Mercado, Agustin R. Jr. (1998)
    The purpose of this paper is to share some emerging lessons concerning decentralization and devolution of forest management in Southeast Asia, drawing upon the collaborative work being undertaken by the International Centre for Research in Agroforestry (ICRAF) and a wide range of partner institutions. The first section will briefly highlight recent developments related to decentralized approaches to forest policy and management in Indonesia, Vietnam, Lao PDR and the Philippines. The second section will present highlights, emerging lessons, and implications for scaling up from the perspective of three case-studies: 1) the damar agroforests in Krui, Lampung Province, Sumatra, Indonesia; 2) the municipal-level natural resource management planning process in Lantapan, Bukidnon Province, Mindanao, Philippines; and 3) the Landcare approach to conservation farming on sloping lands in Claveria, Misamis Oriental Province, Mindanao, Philippines. The last section will attempt to draw some general principles and lessons learned from ICRAF collaboration in Southeast Asia, particularly in light of how these may be applied for future scaling-up efforts to generate wider positive impact.
  • Developing conservation agriculture in the Philippines
    Mercado, Agustin R. Jr.; Reyes, Manuel R.; Ella, Victor B. (2011)
    This presentation describes the implementation of Conservation Agriculture production practices in Claveria, Misamis, Philippines, as well as its impacts on soil conservation and marketable produce yields. This research was conducted by the SANREM CRSP Long Term Research Activity 12, Conservation agriculture for food security in Cambodia and the Philippines.
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    Developing conservation agriculture production systems for sloping acid upland in the Philippines
    Mercado, Agustin R. Jr.; Arcinal, Gil A.; Edralin, Don Immanuel A.; Ella, Victor B.; Reyes, Manuel R. (2012)
    Degraded landscapes are expanding rapidly in the Philippines. Agricultural productivity is decreased which in turn heightens food insecurity and exacerbates poverty particularly on the sloping acid uplands which soils are inherently poor. Through conservation agriculture (CA) principles and practices of minimal soil disturbance, continuous mulching and diverse species rotations, constitute the best ‘tool box’ to create sustainable permanent cropping systems for annual crop production for sloping tropical uplands. These practices reverse soil degradation, increase crop yield and profits and reduce the labor burden on women. Researchers-managed and farmer-managed conservation agriculture production systems (CAPS) were evaluated across the landscape of Claveria, Philippines including crops and soil fertility management component researches. We found out that cassava (Manihot esculenta) + Stylosanthes guianensis yielded the highest biomass and total sales followed by maize-maize system which yielded better compared with other maize based CAPS. Interplanting maize either with cowpea or ricebean did not give better total grain and biomass yield, but provided higher sales due to relatively better price of beans. Interplanting of maize with cowpea and relayed with upland rice insured food and nutritional security to smallholders by shortening harvest periods to 60 days and increasing harvest cycles. Stylosanthes grown with cassava and maize yielded significantly better than Arachis pintoi than grown with maize. We found out the limiting nutrients were nitrogen (N) > phosphorus (P) > Potassium (K). Omitting N application reduced maize yield by 67%, P by 59% and 21% without K application. Optimum rate of NPK application for maize was 120-20-0, but maintenance K of 17 kg/ha was necessary. Promising varieties of maize, upland rice, cowpea, forage grasses, forage legumes, sweet potato, cassava, sorghum including “adlai” (Job’s tears) were identified out-yielding locally grown varieties in economic and biomass yield which are suitable for CAPS. Our research results can be extrapolated to other upland areas in the Philippines as well as other areas in Southeast Asia as Claveria represents the bio-physical and socio-economic environment of these areas
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    Developing Conservation Agriculture Production Systems in the Philippines
    Mercado, Agustin R. Jr.; Arcinal, Gil A.; Edralin, Don Immanuel A.; Ella, Victor B.; Reyes, Manuel R. (2014)
    Conservation agriculture with trees (CAT) offers solution to this pressing problem through following 5 key principles: Minimum soil disturbance, continuous mulch, maintaining diverse crop species, integrated pests and nutrient management. CAT is very important in soil and water conservation, enhancing agri-diversity, improving farm carbon sequestration potential, maximization of land area usage in the Philippines as well as the reversal of soil degradation thus improving food and nutritional security of the upland dwellers.
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    Developing conservation agriculture with trees for integrated sloping lands management in the Philippines
    Mercado, Agustin R. Jr.; Reyes, Manuel R. (2013)
    Degraded sloping landscapes are expanding rapidly in the Philippines because of severe soil erosion caused by intense rainfall associated with more frequent typhoons as a consequence of changing climate. Decreased agricultural productivity heightens food insecurity and exacerbates poverty particularly on the sloping acid uplands which have inherently low-nutrient soils and resource-poor farmers. Conservation agriculture with trees (CAT) revolves around minimal soil disturbance, continuous ground cover, diverse crop species, integrated nutrient and pest management and deliberate integration of trees. This approach may constitute the best ‘tool box’ to create productive and resilient cropping systems under wet tropical conditions. These practices reverse soil degradation, increase and stabilize crop yield and profits, and reduce the labor burden on farmers.
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    Developing conservation agriculture with trees learning center in the Philippines
    Mercado, Agustin R. Jr.; Ella, Victor B.; Javier, E.; Reyes, Manuel R. (2013)
    This poster presented crop production in a conservation agriculture with tree (CAT) system in the upland area in Claveria, Misamis, Philippines. CAT is very important in soil and water conservation, enhancing agri-diversity, improving farm carbon sequestration potential, maximization of land area usage in the Philippines as well as the reversal of soil degradation thus improving food and nutritional security of the upland dwellers.