Rotations for sustainable production in Bedfordshire, UK

World Region
Outcomes
, , , ,
Interventions
, ,

The Colworth Farm Project in Bedfordshire, UK, is part of the Sustainable Agriculture Initiative of the consumer goods company Unilever. From 1999 to 2006, a 60-ha section of the farm was used as an experimental station. The aim of the project was to develop sustainable production systems for peas and oilseed rape within a six-year […]

Adoption of sweet potato for food and feed in mixed crop-livestock systems

World Region
Outcomes
, ,
Interventions
,

Mixed crop–livestock systems have a crucial role to play in meeting the agricultural production chal- lenges of smallholder farmers in sub-Saharan Africa. Sweet potato is seen as a potential remedial crop for these farmers because of its high productivity and low input requirements, while its usefulness for both food and feed (dual-purpose) make it attractive […]

Productivity higher in species mixtures on tropical plantations

World Region
Outcomes
Interventions
,

At the La Selva Biological Station in Costa Rica, some species demonstrated signficantly faster growth in mixtures than as monocultures. For instance, Jacaranda copaia, Vochysia guatemalensis and Calophyllum brasiliense produced 21% more merchantable volume as a mixture than a sole monoculture of J. copaia, the fastest growing of the three species. Similarly, Dipteryx panamensis, Virola koschnyi and Terminalia amazonia mixtures demonstrated growth […]

Higher productivity in mixed-species forest plantations

Outcomes
,
Interventions
,

The vast majority of the world’s forest plantations are monocultures, many consisting of just a few common and widespread genera such as Eucalyptus, Pinus, Acacia, Tectona, Picea, Pseudotsuga, Swietenia, Gmelina the most important. There are potential advantages to using species mixtures rather than the more conventional monoculture approach in forest plantations, provided they are carefully designed […]

Intercropping benefits depend upon proximity

World Region
Outcomes
,
Interventions
,

There are numerous examples of crops that, when planted closely in intercropped systems, make better use of soil ntrients. In China, Wheat intercropped with maize showed a 74% increase in yields; Wheat intercropped with soybean showed a 53% increase (Zhang and Li 2003).  This is partially attributable to ‘competitive recovery’, the amelioration of abiotic stresses both […]

Diversity and productivity in hay fields

World Region
Outcomes
,
Interventions

Species rich fields of 11 grasses and 28 forb species, and species poor hay meadows with only 7 species of grass were compared after 8 years. The Higher diversity meadows yielded 43% more hay than less diverse fields, and the effect of diversity was significant event after controlling for other factors like fertilization effect of […]

Shifting from cattle ranching to Integrated Crop-Livestock Systems in Amazonia

World Region
Outcomes
, , ,
Interventions
,

A grazing system based on one species (Brachiaria brizantha, representing 90% of sown grass in Amazoni)  with Nelore zebu cattle, is adapted to marginal regions with little need for inputs, but income per hectare remains low. Integrated Crop and Livestock Systems in Amazonia can generate higher income per ha and stop deforestation. The system, which involves […]

The contribution of genetic resources and diversity to wheat production in the Punjab of Pakistan

World Region
Threat
Outcomes
,
Interventions
,

The effects of wheat genetic diversity and other associated indicators are incorporated into a production-function analysis to estimate the effects on the mean and variance, while controlling for various production inputs in Northern Pakistan.  Variables related to genetic resources and diversity of wheat varieties are monitored in irrigated and rainfed districts between 1979 and 1985. Their […]

Farmer to Farmer Networks Facilitate the Spread of Green Manure

World Region
Threat
Outcomes
,
Interventions
,

In Nicaragua, the spread of simple technologies through farmer to farmer networks such as the campesino a campesino movement have facilitated the recovery of degraded land. In the San Juan Watershed, farmers have adopted cover cropping with velvetbean.  This has reduced utilization of chemical fertilizers by nearly 80% (from 1,900 kg/ha to only 400 kg/ha), while increasing […]

Benefits of Tithonia in Western Kenya

World Region
,
Threat
Outcomes
, , , , ,
Interventions
,

In Western Kenya, about 4000 farmers are enriching their farms with biomass from Tithonia, a wild sunflower that grows abundantly in hedgerows and along roadsides. Tithonia biomass contains high concentrations of Nitrogen, Phosphorus and Potassium, and decomposes rapidly. This has led to tremendous impacts on yields of maize and other high value crops such as […]