Results 31 to 40 of about 15,474 (212)
Dynamics of Sahelian pastures in relation to drought and grazing [PDF]
, 1977 Land degradation is a major problem in the semi-arid environments of Sub-Saharan Africa. Fighting land degradation is essential to ensure the sustainable and long-term productivity of the habited semiarid lands.
Breman, H., Cisse, A.M.
core +6 more sources
Planta Daninha, 2010 Objetivou-se com este trabalho estudar a resposta de plantas daninhas a doses do óleo fúsel aplicadas em pós-emergência inicial e tardia. Para isso, foram estudadas as espécies Ipomoea hederifolia, Ipomoea quamoclit, Euphorbia heterophylla, Digitaria spp.
C.A.M. Azania +3 more
doaj +1 more source
Host range, purification, and genetic variability in Sweet potato chlorotic fleck virus [PDF]
, 2009 Sweet potato chlorotic fleck virus (SPCFV) has recently been classified as a putative new member of the genus Carlavirus (family Flexiviridae) on the basis of its molecular properties.
Adipala, E. +5 more
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Importância econômica, epidemiologia e controle das intoxicações por plantas no Brasil
Pesquisa Veterinária Brasileira, 2013 A importância econômica, epidemiologia e controle das intoxicações por plantas em animais domésticos no Brasil são revisadas. Com os dados dos laboratórios de diagnóstico de diferentes regiões do país, as perdas anuais por mortes de animais foram ...
Clarice R.M. Pessoa +2 more
doaj +1 more source
Evaluation of sweetpotato (Ipomoea batatas (L.) Lam.) germplasm from north-eastern Uganda through a Farmer Participatory Approach [PDF]
, 2002 Ugandan farmers grow many landrace sweetpotato varieties, but some of these are relatively low yielding and susceptible to pests. The objective of the present research was to involve farmers in a large-scale assessment of Ugandan farmers’ varieties to ...
Abidin, P.E. +6 more
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Effects of straw decomposition degree on leaching and weed control efficacy of tebuthiuron and hexazinone in green sugarcane harvesting [PDF]
Planta Daninha, 2014 Green sugarcane harvesting may promote great changes in the dynamics of herbicides in the environment. Our goal was to evaluate the influence of straw decomposition degree on leaching and weed (Ipomoea grandifolia) control efficacy by (14C) tebuthiuron ...
T.A.P. Tonieto, J.B. Regitano
doaj +1 more source
Open Agriculture, 2021 In Zambia, potato (Solanum tuberosum L.) cultivation is ranked the third most important among root and tuber crops after cassava (Manihot esculenta Crantz) and sweet potato (Ipomoea batatas (L.) Lam.).
Chilipa Lorraine N. K. +5 more
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Weed mapping using techniques of precision agriculture [PDF]
Planta Daninha, 2015 The aim of this study was to identify and map the weed population in a no-tillage area. Geostatistical techniques were used in the mapping in order to assess this information as a tool for the localized application of herbicides.
F.C. ROCHA +5 more
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Planta Daninha, 2006 A interferência de convolvuláceas na produtividade dos cultivares de soja (Coodetec 206 e Monsoy 6101) semeados diretamente sob a palha residual (12,8 t ha-1) de cana crua foi estudada em relação aos manejos com o herbicida diclosulam (0,035 kg ha-1) em ...
P.C. Timossi, J.C. Durigan
doaj +1 more source