Nutrient release from decomposing crop residues in soil: a laboratory experiment

Article Abstract:

A laboratory study was conducted to determine the enhancing effects of rape, sunflower and soybean on soil fertility using total N, exchangeable K+, CA2+, Mg2+, available P, NH+(sub 4)-N, NO-(sub 2)-N, NO-(sub 3)-N and HPO2-(sub 4) levels as parameters. It was found out that decomposing rape, sunflower and soybean residues increased the levels of total N, available P, exchangeable K+, Ca2+ and Mg2+. Sunflower showed the highest effectivity in increasing available P and exchangeable cations, while NO-(sub 3)-N content was highest in soybean-enhanced soil. These decomposing materials may reduce fertilizer needs in farming.

Usage, Organic wastes, Organic fertilizers, Organic wastes as fertilizer, Soil fertility, Crop residues

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Alternative practices for managing plant-parasitic nematodes

Article Abstract:

Resistant cultivars and other cropping systems such as rotation crops, cover crops or nematode-antagonistic crops are among the most popular cultural practices for managing plant-parasitic nematodes. Limiting nematode infestation can also be done through exclusion and sanitation practices such as the use of nematode-free planting material, site selection and weed management. Other potential practices include soil solarization, fallow, timing of planting dates, tillage, flooding, organic amendments and biological control.

Plant-pathogen relationships, Pests, Control, Pest control, Plant parasites, Cropping systems, Plant nematodes

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