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An introduction to soil acidity and liming for farmers and gardeners to increase crop income and improve lawn and garden performance. Topics covered include soil pH, soil testing, liming standards and application and incorporation of lime into soil.
This factsheet for farmers describes concepts, terminology, and guidelines concerning soil sampling. Proper testing allows farmers to apply the correct amount of lime and fertilizer to fields.
This factsheet describes the effect of fertilizer nitrogen on water quality and the environment. It provides guidelines for managing soil fertility on farms to preserve water quality.
This factsheet for farmers describes ways to control the harmful effects of excess nutrients while maintaining healthy, productive farm crops. Steps covered include testing your soil and following the soil testing recommendations, setting realistic yield goals, choosing the most suitable nitrogen sources, applying nitrogen correctly, using manure as a nutrient source, controlling erosion, managing water flow and fencing animals away from water flow.
This factsheet covers the description, biology, and management of the jumping earthworm, a common pest in North Carolina gardening.
This publication discusses best practices management to prevent agricultural activities from contaminating groundwater. It covers the role of soil on the quality of groundwater, soil characteristics, characteristics of potential pollutants and management practices such as nitrogen and pesticide management.
Phosphorus (P) is the second most important nutrient in crop production but is often found in relatively low amounts in native soils. Decades of fertilizer application have led to P enrichment of most North Carolina agricultural soils. Excess soil P that leaves agricultural fields via runoff and drainage can cause algal blooms in water resources that lead to impaired drinking water quality and can limit recreational activities. Maintaining adequate soil P levels for crop growth can reduce P runoff, save money, and protect the environment
This publication discusses nutrient removal by crops, which is useful in comparing the nutrient demands of different crops in conjunction with soil testing. The publication also includes a table of the estimated nutrient removal rates of various crops.
This publication discusses several causes of soil compaction and provides mitigation recommendations.
This publication helps farmers decide whether to reduce fertilization rates in order to achieve maximum profits due to increases in nitrogen fertilizer prices.
In our drive to meet the food and fiber needs of ever-increasing populations, we are taxing the resilience of the planet’s natural resources. This fevered quest to pursue ever-increasing crop yields has had devastating impacts: widespread soil erosion, atmospheric pollution, over- grazed forage areas, over-cultivated fields, salinated water supplies, cleared land that is unsuitable for crops, and desertification —the loss of agricultural land to desert. The serious degradation of our soil resources has motivated some researchers and farmers to investigate management systems that are less input-intensive and generally more sustainable.
