Results 41 to 50 of about 514,067 (357)

Spatial distribution of Sahlbergella singularis Hagl. (Hemiptera: Miridae) populations and associated damage in unshaded young cocoa-based agroforestry systems in Cameroon [PDF]

, 2012
The aim of this study was to analyze the spatial distribution of S. singularis populations and associated damage in young not yet shaded cocoa-based agroforestry systems.
Amang a Mbang, Joseph, Babin, Régis, Bagny-Beilhe, Leila, Bourgoing, Raymond, Cilas, Christian, Dibog, Luc, Mahob, Raymond Joseph, Nyassé, Salomon, Sounigo, Olivier, Ten Hoopen, Gerben Martijn   +9 more
core  

Sustainable Productivity Growth in Agriculture: The Role of Shifts in R&D Investments and Technology

Applied Economic Perspectives and Policy, EarlyView.
ABSTRACT The objective of the paper is to evaluate the long‐term prospects of sustainable productivity growth linked to plausible assumptions on public agricultural R&D investments as the key productivity driver. Second, it investigates the role of changing R&D focus from yield maximization to input saving technologies (fertilizers and pesticides). The
Zuzana Smeets Křístková, Michiel van Dijk, Robert M'Barek, Hans van Meijl, Tomas Ratinger   +4 more
wiley   +1 more source

Carbon costs and benefits of Indonesian rainforest conversion to plantations

Nature Communications, 2018
Land-use intensification in the tropics plays an important role in meeting global demand for agricultural commodities but generates high environmental costs.
Thomas Guillaume, M. Kotowska, D. Hertel, A. Knohl, Valentyna Krashevska, K. Murtilaksono, S. Scheu, Y. Kuzyakov   +7 more
semanticscholar   +1 more source

The difference of soil properties between pure and mixed Chinese fir (Cunninghamia lanceolata) plantations depends on tree species

Global Ecology and Conservation, 2020
Second generation Chinese fir plantation has occurred the problem of site deterioration, which is usually supposed to be solved by mixed plantation. Here, we determined the physicochemical properties of six soil layers in pure and three types of mixed ...
Lai Zhou, Yujun Sun, S. Saeed, Bo Zhang, Mi Luo   +4 more
semanticscholar   +1 more source

Land reform on multinational corporate plantations in the Philippines : case studies of the application of the comprehensive agrarian reform programme (1988) : a thesis presented in partial fulfilment of the requirements for the degree of Master of Philosophy in Development Studies, Massey University [PDF]

, 1993
This thesis examines the implications of a recent agrarian reform programme in the Philippines for multinational corporate (MNC) plantations. Its central purpose is to assess and explain the land tenure consequences of the Comprehensive Agrarian Reform ...
Banks, Tony John
core  

The Bitter Taste of Brazil's Temporary Import Ban on Robusta Coffee

Agribusiness, EarlyView.
ABSTRACT Brazil, a leading Robusta coffee producer and exporter, faced a significant drought in 2016–2017, which drastically reduced production and depleted stocks. Consequently, Brazil temporarily permitted the import of one million 60‐kg bags of Robusta coffee in the spring 2017. An import ban was imposed shortly afterward due to lobbying by domestic
Hanifi Otgun, John Beghin, Fernando Maximiliano   +2 more
wiley   +1 more source

FUNGICIDE SENSITIVITY OF XYLARIA ISOLATES ASSOCIATED WITH ROOT AND BASAL STEM ROT OF SUGARCANE

Jurnal Agrotek Tropika
Root and basal stem rot is one of important diseases in sugarcane plantations in South Sumatra and Lampung. This disease is caused by Xylaria sp. The study is aimed to determine the fungicides sensitivity of Xylaria sp.
Rosa Indriani, Tri Maryono, Rusdi Evizal, Joko Prasetyo, Heru Pranata, Saefudin Saefudin   +5 more
doaj   +1 more source

Charting the Path to Increased Oil Palm Output in Ghana Beyond Area Expansion: Technology or Managerial Capacity — Which Leads the Way?

Agribusiness, EarlyView.
ABSTRACT This study sets out to investigate the prospects for raising oil palm output in sub‐Saharan Africa, particularly Ghana, without further expansion of cropland. Given global concerns about oil palm's role in deforestation and land use change, the focus is on enhancing productivity on existing farmlands.
Jacob Asravor, Francis Tsiboe, Ayobami Adetoyinbo, Jacob Ankamah   +3 more
wiley   +1 more source

For the sake of resilience and multifunctionality, let's diversify planted forests!

Conservation Letters, 2022
As of 2020, the world has an estimated 290 million ha of planted forests and this number is continuously increasing. Of these, 131 million ha are monospecific planted forests under intensive management. Although monospecific planted forests are important
Christian Messier, Jürgen Bauhus, Rita Sousa‐Silva, Harald Auge, Lander Baeten, Nadia Barsoum, Helge Bruelheide, Benjamin Caldwell, Jeannine Cavender‐Bares, Els Dhiedt, Nico Eisenhauer, Gislene Ganade, Dominique Gravel, Joannès Guillemot, Jefferson S. Hall, Andrew Hector, Bruno Hérault, Hervé Jactel, Julia Koricheva, Holger Kreft, Simone Mereu, Bart Muys, Charles A. Nock, Alain Paquette, John D. Parker, Michael P. Perring, Quentin Ponette, Catherine Potvin, Peter B. Reich, Michael Scherer‐Lorenzen, Florian Schnabel, Kris Verheyen, Martin Weih, Meike Wollni, Delphine Clara Zemp   +34 more
doaj   +1 more source

Assessment of Heavy Metal Pollution Using Forest Species Plantations of Post-Mining Landscapes, Ptolemais, N. Greece

Mining, 2022
The main purpose of the study was the absorption of heavy metals in the leaves of forest tree species, which were planted in two different plots for forestry use and environmental restoration. Four species were studied Pinus brutia, Robinia pseudoacaccia,
Theano Samara, Ioannis Spanos, Thomas G. Papachristou, Panagiotis Platis   +3 more
doaj   +1 more source