Nitrogen fertiliser replacement values for organic amendments appear to increase with N application rates
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چکیده
منابع مشابه
Organic and inorganic nitrogen amendments to soil as nematode suppressants.
Inorganic fertilizers containing ammoniacal nitrogen or formulations releasing this form of N in the soil are most effective for suppressing nematode populations. Anhydrous ammonia has been shown to reduce soil populations of Tylenchorhynchus claytoni, Helicotylenchus dihystera, and Heterodera glycines. The rates required to obtain significant suppression of nematode populations are generally i...
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15 صفحه اولOrganic Soil Amendments for Sustainable Agriculture: Organic Sources of Nitrogen, Phosphorus, and Potassium
Sustainable agriculture, which is characterized by farming profitably while minimizing damage to the environment, is not easy to practice. “Conventional” agriculture in the USA is commonly considered to involve practices that have potential to damage the environment. These include tilling the soil excessively, overapplying readily soluble inorganic fertilizers (“chemical fertilizers”), and over...
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The quantification of nitrogen (N) supplying capacity of organic amendments applied to a soil is of immense importance to examine synchronization, N release capacity, and fertilizer values of these added materials. The aims of the present study was to determine the potential N mineralization and subsequent nitrification of separate and combined use of poultry manure (PM), wheat straw residues (...
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In dairy cows, dietary crude protein (CP) that can is not captured as milk protein is largely excreted as N in manure. Of course, some protein-N is retained for growth in first and second lactation animals and in the calf and fetal tissues during pregnancy; however, these amounts are small relative to the proportion of absorbed N going into milk. Cows and other mammals convert N from absorbed a...
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ژورنال
عنوان ژورنال: Nutrient Cycling in Agroecosystems
سال: 2017
ISSN: 1385-1314,1573-0867
DOI: 10.1007/s10705-017-9875-5