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Now showing items 21-29 of 29
Phosphorus levels in shoots of Bambara groundnut in Botswana soils
(Taylor & Francis, 2002)
The critical phosphorus (P) concentration and range of bambara groundnut (Vigna subterranea) plants were determined from a sand culture experiment at Botswana College of Agriculture. Twelve P levels (0.207–159 mg P pot−1) ...
Effects of site preparation for afforestation on methane fluxes at Harwood Forest, NE England
(Springer, 2009-05-06)
A field experiment was established at Harwood Forest to investigate the effects of three forest management practises (drainage, mounding and fertilisation) on methane (CH4) emissions and environmental variables (soil ...
Effect of control plot density, control plot arrangement, and assumption of random or fixed effects on nonreplicated experiments for germplasm screening using spatial models
(Crop Science Society of America, 2005)
Early generation selection experiments typically involve several hundred to thousands of lines. Various systematic and statistical techniques have been developed to increase effectiveness and efficiencies in such experiments, ...
Ngoro: an indigenous, sustainable and profitable soil, water and nutrient conservation system in Tanzania for sloping land
(Elservier, 2004)
The Matengo people, in SW Tanzania, developed the ngoro conservation system several hundred years ago and it is a very effective indigenous manual cultivation practice for steep slopes. It deserves wider recognition and ...
Atriplex Nummularia (Old Man Saltbush) : A Potential Forage Crop for Arid Regions of Botswana
(Asian Network for Scientific Information, 2003)
Atriplex nummularia (Old man saltbush) is widely planted on salt affected land to provide a vegetative cover, which can be used as fodder reserve. Such plantations are also perceived as having the capacity to use saline ...
Elephant impact on shoot distribution on trees and on rebrowsing by smaller browsers
(Elservier, 2006-10)
In order to determine the effects of a megaherbivore, the African elephant (Loxodonta africana) on browse available for mesoherbivores, we assessed the vertical distribution of shoots (< 6 mm in diameter) on trees with ...
Effect of Benzyladenine Plus Gibberellins and Gibberellic Acid on Yield and Yield Components of Cucumber (Cucumis sativus L. cv. ‘tempo’)
(Asian Network for Scientific Information, 2006)
Two greenhouse trials were carried out to evaluate the effect of benzyladenine plus gibberellins (GA4+7) and gibberellic acid (GA3) on yield and yield components of cucumber. Gibberellic acid significantly increased leaf ...
Cooling laying hens by intermittent partial surface sprinkling
(American Society of Agricultural and Biological Engineers, 2000)
This study investigated the efficacy of intermittent partial surface sprinkling to cool caged layers at 20, 38, and 56 weeks of age. Ten birds were used per age group with two birds per paired trial (Experiment, Expt, and ...
African Yam Bean: An Under-Utilized Legume with Potential as a Tuber and Pulse Crop
(Taylor & Francis, 2007)
AfricanYamBean (Sphenostylisstenocarpa)isalegume that provides nutritionally rich seeds, tubers and leaves for human consumption. Production relies upon the cultivation of landraces and, to some extent, the collection of ...