Comparison of conventional and organic apple production systems during three years of conversion to organic management in coastal California

Article Abstract:

A comparison between the conventional and organic semidwarf Granny Smith apple production methods in California during three years of conversion to certified organic management revealed that apple yields were greater in the organic production system. The organic method also produced higher fruit weight per tree, but smaller in average fruit size. Results also showed that soil nutrient levels and fruit damaged caused by codling moth were relatively similar for both production systems. However, fruit scarring due to secondary lepidopterous pest was higher in the conventional system, while earthworm biomass and abundance were higher in the organic system.

Usage, California, Fruit industry, Fruit trade, Apples, Organic fertilizers, Apple, Organic farming, Earthworms, Soil fertility

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Cropping systems: effects on soil quality indicators and yield of pearl millet in an arid region

Article Abstract:

The effect of cropping systems on soil quality indicators and on yield of pearl millet in tropical climates is studied. The experiment was conducted on eight cropping systems between 1990 and 1993 near Jodhpur, India. Results show that legume-based cropping systems in arid regions, particularly those based on cluster bean, produce high yields of pearl millet even with limited supply of water and fertilizers and enhance soil properties.

Arid regions agriculture, Environmental aspects, Growth, Cropping systems, Pearl millet

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