Search Results - Rock groups

Refine Results
  1. Use of rainfall indices to analyze the effects of phosphate rocks on millet in the Sahel by Yamoah, C.F., Bationo, B. André, Shapiro, Barry I., Saidou, K

    Published 2011
    “…The purpose of this long-term study was to explore the use of both local phosphate rock (PR) and inorganic P on yields and risk of millet returns under the uncertain rainfall regimes in the Sahel. …”
    Get full text
    Journal Article
  2. Community response to aquifer development: distinct patterns in India's alluvial and hard rock aquifer areas by Shah, Tushaar

    Published 2012
    “…In contrast, many hard rock aquifer areas in India are seeing spontaneous initiatives from farmers, communities, NGOs and other players to cope with or counter aquifer depletion, mostly by individual or group efforts to increase groundwater recharge, but less so by making and enforcing rules to limit withdrawals.…”
    Get full text
    Journal Article
  3. Ticks (Acari: Argasidae, Ixodidae) from Middle and pre-Hispanic Late Holocene associated with human activities in northwestern Argentina by Nava, Santiago, Martinez, Jorge Gabriel, Arreguez, Guillermo Anibal, Guglielmone, Alberto

    Published 2018
    “…One male of Amblyomma parvitarsum and one male and a female of Ornithodoros sp. were recovered from archaeological layers of the Middle Holocene in a rock shelter in the province of Catamarca, used by hunter-gatherer groups. …”
    Get full text
    Get full text
    Get full text
    Artículo
  4. Groundwater over-exploitation and efficiency in crop production: application of data envelopment analysis by Kuppannan, Palanisami, Ranganathan, C.R., Umetsu, C.

    Published 2011
    “…Groundwater over-exploitation and well failure are common in hard rock regions of south India. Groundwater scarcity influenced the farm input use and overall farm level technical efficiency. …”
    Get full text
    Journal Article
  5. Problemas de fertilización en el Capo Cerrado de la parte central oriental de Brasil by Hardy, Frederick

    Published 2025
    “…The Campo Cerrado soil is alas-sed as Red and Reddish-Brown Latosol or av a neu group, Rubrozem, having vela-tionship with Reddish-Yellou Podzolic soil The soil bas lou organic matter and nitrogen contents Its reaction value is generally belou pH 50 Exchangeable calcium is particularly low and also certain minor nutrient elements, notably sulphur, zinc and molybdenum Phosphate is the most deficient available nutrient of all Pot-tests gave results in accord with those of chemical soil analysis Fertilizes field experiments gate results in accord whith those of the pot-tests, they showed response to sulpbm and to zinc among the minos elements, but particularly to phosphate They also showed response to dolomitic limestone In order to resuscitate the Campo Cerrado soils cheaply and rapidly, minimal amounts of ground rock phosphate, dolomitic limestone, gypsum and a minor element mixture, preferably chelates, should be applied. …”
    Get full text
    Artículo
  6. Testing of commercial inoculants to enhance P uptake and grain yield of promiscuous soybean in Kenya by Faye, A., Stewart, Zachary P., Ndung’u-Magiroi, K., Diouf, M., Ndoye, I., Diop, T., Dalpé, Y., Prasad, P.V.V., Lesueur, D.

    Published 2020
    “…A promiscuous soybean variety was grown in a greenhouse pot study with two representative soils amended with either water-soluble mineral P or rock P to assess product performance. The performance of selected mycorrhizal inoculants combined with a rhizobial inoculant (Legumefix) was then assessed with farmer groups in three agroecological zones using a small-plot, randomized complete block design to assess soybean root colonization by mycorrhiza, nodulation, and plant biomass production in comparison to rhizobial inoculant alone or with water-soluble mineral P. …”
    Get full text
    Journal Article
  7. Benefits, limitations and sustainability of soil and water conservation structures in Omo-Gibe basin, Southwest Ethiopia by Wolka, K., Sterk, G., Biazin, Birhanu, Negash, M.

    Published 2018
    “…Stone bunds were widely implemented in Bokole watershed where rock fragments are abundant and Fanya juuand soil bunds were widely practiced in Toni watershed where rock fragments are not available. …”
    Get full text
    Journal Article
  8. Athi Kapiti landscape game count report conducted on 4th June 2023 by Lumumba, E., Pruiksma, M.

    Published 2023
    “…The participants were divided into groups with each block having at least 3 participants; a driver, an observer and a recorder. …”
    Get full text
    Informe técnico
  9. Characterization of diazotrophic phosphate solubilizing bacteria as growth promoters of maize plants by López Ortega, Mónica Del Pilar, Criollo Campos, Paola Jimena, Gómez Vargas, Ruth Milena, Camelo Runsinque, Mauricio, Estrada Bonilla, Germán, Garrido Rubiano, María Fernanda, Bonilla Buitrago, Ruth

    Published 2025
    “…Phosphorus is limiting for growth of maize plants, and because of that use of fertilizers like Rock Phosphate has been proposed. However, direct use of Rock Phosphate is not recommended because of its low availability, so it is necessary to improve it. …”
    Get full text
    Get full text
    Artículo
  10. Synergies of nutrient fractions for fertilization in agriculture by Adjei, Linda

    Published 2022
    “…Most of the mined phosphate rock comes from Morocco and the Russia area which has unstable security. …”
    H2
  11. Análisis económico de la fertilización en fríjol en el Norte del Cauca by Meza Q., Jorge Hernán, Tascón C., Rodrigo

    Published 2019
    “…Two experiments were analyzed; the first one was directed to study the behavior of colombian phosphorus products at farm level with non grouped and grouped data, based on four groups of farms, classified according soil characteristics and management. …”
    Get full text
    Artículo
  12. Research methods for the diagnosis of soil fertility problems by Wortmann, Charles S., Regassa, T, Mughogho, SK

    Published 1988
    “…In the 1st stage, the criteria used in grouping the land may include natural vegetation, common crops and management practices, topography, climate, geology, and soil physico-chemical properties. …”
    Get full text
    Conference Paper
  13. Village Baseline Study – Site Analysis Report for My Loi, Ky Anh district, Ha Tinh province – Viet Nam by Hai, Le Van, Duong, Minh Tuan, Hieu, Do Trong, Hoan, Le Khai, Lien, Phan Huong, Simelton, Elisabeth, Ferrer, Alice J., Tan Yen, Bui

    Published 2014
    “…Data collection for the Village Baseline Study (VBS) of My Loi village in the CCAFS benchmark site of central Viet Nam took place on 17- 19 October 2014. Focus group discussions were conducted separately for 45 men and 45 women villagers.. …”
    Get full text
    Informe técnico
  14. "Líneas de piedra" en suelos del noreste argentino. Origen e implicancias. by Moretti, Lucas Martin, Morras, Hector

    Published 2025
    “…On the other hand, the presence of nodular horizons in the red soils of Misiones can be presumed to act as rock fragments, thus contributing to percolation and reducing the risk of erosion. …”
    Get full text
    Capítulo de libro

Search Tools: