The Effects of Intercropping on Weeds and Weed Management in Maize Growing in Kenya PDF Download

Author: J. Mukami Maina
Publisher:
ISBN:
Category :
Languages : en
Pages : 200

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Author: Arnold Bray Mashingaidze
Publisher:
ISBN:
Category : Corn
Languages : en
Pages : 216

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Span lang=EN-GB style='mso-ansi-language:EN-GB'It was concluded that cultural weed management techniques that enhance radiation capture by the crop were effective in suppressing weed growth and seed production and increasing crop yields and should be incorporated into smallholder farmer's production practices in a systematic manner as part of Integrated Weed Management and cropping system design.

Author: Akbar Hossain
Publisher: BoD – Books on Demand
ISBN: 1838802614
Category : Science
Languages : en
Pages : 158

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Maize is a staple cereal after wheat and rice. It is an important source of carbohydrate, protein, iron, vitamin B and minerals for many poor people in the world. In developing countries maize is a major source of income in resource-poor farmers. As maize is used both as silage and as crop residue and the grains of maize are usually used for food, starch and oil extraction industrially, the demand for maize is rising day by day. Therefore, it is imperative for improvement of maize to meet the increasing demand. This book entitled "Maize - Production and Use" highlights the importance of maize and the improved management approaches for improving the productivity of maize in the era of changing climate.

Author: Inderjit
Publisher: Springer Science & Business Media
ISBN: 9401705526
Category : Science
Languages : en
Pages : 550

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Weeds hold an enigmatic and sometimes-controversial place in agriculture, where they are generally reviled, grudgingly tolerated, and occasionally admired. In most cases, growers make considerable effort to reduce the negative economic impact of weeds because they compete with crops for resources and hinder field operations, thereby affecting crop productivity and quality, and ultimately the sustainability of agriculture. Weed control in production agriculture is commonly achieved through the integration of chemical, biological, and mechanical management methods. Chemicals (herbicides) usually inhibit the growth and establishment of weed plants by interfering with various physiological and biochemical pathways. Biological methods include crop competition, smother crops, rotation crops, and allelopathy, as well as specific insect predators and plant pathogens. Mechanical methods encompass an array of tools from short handled hoes to sophisticated video-guided robotic machines. Integrating these technologies, in order to relieve the negative impacts of weeds on crop production in a way that allows growers to optimize profits and preserve human health and the environment, is the science of weed management.

Author: Peterson Njeru
Publisher: LAP Lambert Academic Publishing
ISBN: 9783843363761
Category :
Languages : en
Pages : 72

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The high population pressure in central Kenya has lead to continuous cultivation with minimal application of nutrient, resulting in nutrient depletion. A study was conducted to determine the effect of 'Push-pull' (intercropping maize with Desmodium and Napier grass) strategy management and nitrogen application on maize grain yield and soil fertility on smallholder farmer's fields in three districts of central Kenya highlands. The experiment design was a split plot design with two factors ('Push-pull' vs monoculture and manure (5 t/ha) only vs manure and fertilizer (40 kg/ha) replicated four times.I found an increase in maize yield in 'Push-pull' fields compared with monocultures with only manure added (5t/ha) and the yield increased even more with modest application of fertilizer (40KgN/ha) combined with manure (5t/ha).There was strong significant difference (p

Author: I. Okezie Akobundu
Publisher: John Wiley & Sons
ISBN:
Category : Herbicides
Languages : en
Pages : 560

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Excessive weed growth is one of the most serious problems facing farmers throughout the tropics. There is a need for professionally trained weed scientists to become involved in research at the highest level, where existing technologies can be further developed and new ones generated.

Author: Arnold B. Mashingaidze
Publisher:
ISBN: 9789067548205
Category : Corn
Languages : en
Pages : 195

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Author: Gebisa Ejeta
Publisher: World Scientific
ISBN: 9812707085
Category : Science
Languages : en
Pages : 356

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Witchweeds (Striga species) decimate agriculture in much of Africa and parts of Asia, attacking the major cereal grains and legumes, and halving the already very low yields of subsistence farmers. Several years of research have provided promising technologies, based on the fundamental biology of the parasite?host associations, for dealing with this scourge. However, there is an apparent realization that these technologies will fail because highly successful weeds such as Striga evolve resistance to all types of controls unless proven methods are integrated with each other for a more sustainable solution.Integration is often an anathema to basic scientists who typically deal with single variables and solutions. However, key leaders in the development of the new knowledge-based control strategies, already in the field and under development, recently joined forces to develop strategies and projects in order to integrate the technologies in a symposium in Ethiopia in November 2006. The encouraging results are described in this peer-reviewed book, authored by leaders in the field who have been supplying the basic biology, genetics, biochemistry, and molecular information that have offered insights and generated technologies in how to deal with Striga.

Author: K. E. Giller
Publisher: CABI
ISBN: 1845933044
Category : Science
Languages : en
Pages : 443

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Nitrogen fixation by leguminous plants is especially important when farmers are trying to minimise fertilizer use for cost or environmental reasons. This second edition of the highly successful book, first published in 1991, contains thoroughly updated and revised material on the theory and practice of nitrogen fixation in tropical cropping systems.

Author:
Publisher: CIMMYT
ISBN: 9706481206
Category : Corn
Languages : en
Pages : 550

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