A pot experiment and afield trial were conducted to study the remediation of an aged field soil contaminated with cadmium, copper and polychlorinated biphenyls (PCBs) (7.67 +/- 0.51 mg kg(-1) Cd, 369 +/- 1 mg kg(-1) Cu in pot experiment; 8.46 +/- 0.31 mg kg(-1) Cd, 468 +/- 7 mg kg(-1) Cu, 323 +/- 12 microg kg(-1) PCBs for field experiment) under different cropping patterns. In the pot experimen...

A five year Joint Project between SASEX and the KwaZulu-Natal Department of Agriculture and Environmental Affairs was initiated in 1996, aimed at improving the crop production capabilities of small scale cane growers. As part of this Project, research trials were conducted to investigate the economics and practicalities of intercropping cane with food crops. Results from the first two years of ...

garlic is one of the important medicinal plants that it's plants in many origins. the intercropping of plants is a view of sustainable agriculture that it's very useful. to evaluate the potential of garlic in intercropping with medicinal plants, this study was conducted as a randomized complete block design (rcbd) with three replications at the ramin agriculture and natural resources university...

Creating conditions that enhance the abundance of resident populations of natural enemies in agroecosystems is considered critical to the efficiency of biological control of insect pests. We conducted a study to determine the potential of relay-intercropping for enhancing the abundance of aphidophagous lady beetles in sorghum. A relay-intercropping system consisting of alfalfa, winter wheat, an...

Competition among component crops in an intercropping system is important factor that influences productivity. To realize the benefit of terms higher productivity per unit area, competitive behaviour needs to be quantified. As such, experiment was conducted determine cassava-legume-based systems. The a factorial randomized complete design with three replications. treatments consisted seven crop...

introduction evaluating yield in intercropping systems is based on selecting compatible plants with appropriate characteristics to establish minimum competition and maximum cooperation, and the application of suitable agricultural practices (crop density and intercropping ratio). the use of plant species with different morphological characteristics in terms of nutrient uptake and utilization of...

Sustainable agriculture seeks to at least use nature as the model for designing agricultural systems. Since nature integrates her plants and animals into diverse landscape, a major tenet of sustainable agriculture is efficiency and lack of waste products in nature. When domestication of crops replaced hunting and gathering of food, landscape changed accordingly. By producing a limited selection...

Early blight of tomato caused by Alternaria solani, is responsible for severe yield losses in tomato. The conidia survive on soil surface and old dry lower leaves of the plant and spread when suitable climatic conditions are available. Macroclimatic study reveals that highest inoculum concentration of Alternaria spores appeared in May 2012 to 2013 and lowest concentration during January 2012 to...

in order to evaluate the effect of intercropping with replacement and additive series for hemp (cannabis sativa l.) and sesame (sesamum indicum l.), a field experiment was conducted during growing season 2006-07 at the agricultural research station of ferdowsi university of mashhad, iran. a randomized complete block design with three replications was used. treatments included different combinat...

introduction in agronomy, natural outlook has been expressed in different forms which stable agriculture is an example. stable agriculture is ascribed to the authentic management of agricultural resources, which in addition to fulfilling the ever-changing needs of humans, maintains the health of environment and capacity of water and soil resources. application of herbicides, besides being costl...