Mostrando ítems 1-10 de 30
Conservation agriculture for small holder rainfed farming: Opportunities and constraints of new mechanized seeding systems
Small holder farmers in rainfed agriculture believe that soil tillage is needed to maximize crop yields. However, as cropping intensity, and hence tillage intensity, increases there may be a decline in particular physical, ...
Response of maize (Zea mays L.) secondary growth parameters to conservation agriculture and conventional tillage systems in Zimbabwe
(Canadian Center of Science and Education, 2016)
Previous, research focused mainly on the effects of conservation agriculture (CA) and conventional practices (CP) on crop yield mostly. A study was conducted at five sites in Zimbabwe from 2012 to 2014 to investigate effects ...
Benefits and challenges of crop rotations in maize-based conservation agriculture (CA) cropping systems of southern Africa
Conservation agriculture (CA) based on minimum soil disturbance, crop residue retention, crop rotations and associations are being promoted in southern Africa to reverse the decline in soil fertility and crop productivity. ...
Spider community shift in response to farming practices in a sub-humid agroecosystem of southern Africa
Most spiders are generalist predators and important biological control agents of various insect pests of agricultural crops. A study was conducted to determine the impact of cultural practices on the abundnace and diversity ...
Short-term impacts of tillage and fertilizer treatments on soil and root borne nematodes and maize yield in a fine textured cambisol
(Society of Nematologists, 2018)
tc. Conservation agriculture (CA) based on the principles of minimum soil disturbance, crop residue retention, and crop rotation has been the focus of intensive research in recent years. A study was carried out to determine ...
Smallholder farmer innovation and contexts in maize-based Conservation Agriculture Systems in Central Malawi
(Canadian Center of Science and Education, 2017)
The increased threat of food insecurity and climate change requires more sustainable ways of agriculture intensification in African smallholder farming systems. Ample evidence confirms that maize-based conservation agriculture ...
A comparative analysis of conservation agriculture systems: Benefits and challenges of rotations and intercropping in Zimbabwe
Increasing soil degradation in southern Africa and the potentially negative effects of climate change demand ?greener? solutions to reverse this trend. Conservation agriculture (CA) has been proposed as one of those solutions ...
Conservation agriculture for increasing maize yield in vulnerable production systems in central Mozambique
Smallholder farming under rainfed low input crop production in central Mozambique is characterised by decline in soil fertility, low yields and risks of crop failure. To revert this situation, conservation agriculture (CA) ...
Effects of conservation agriculture techniques on infiltration and soil water content in Zambia and Zimbabwe
The adoption of cropping systems (CA), based on minimal soil movement, permanent soil cover with crop residues or growing plants and crop rotation has advanced rapidly in the Americas and Australia over the last three ...