Topic
Organic farming
About: Organic farming is a research topic. Over the lifetime, 7254 publications have been published within this topic receiving 138030 citations. The topic is also known as: pertanian organik & organic farming.
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TL;DR: In this paper, the impacts of land use (organic farming, conventional farming and forest) on forms and distribution of P in soil were assessed and the authors concluded that land use and management practices such as crop rotation, residue input and farmyard manure application significantly increase different fractions of organic farming.
40 citations
TL;DR: The National Organic Program (NOP) was established by the United States Department of Agriculture (USDA) in 1990 to develop national standards for organically produced agricultural products and establish an organic certification program as required by the Organic Foods Production Act (OFPA) passed by Congress in 1990 as discussed by the authors.
Abstract: Comparison of Production Costs and Resource Use for Organic and Conventional Production Systems Karen Klonsky The USDA established the National Organic Program (NOP) to develop national standards for organically produced agricultural products and establish an organic certification program as required by the Organic Foods Production Act (OFPA) passed by Congress in 1990. Organic crop production excludes conventional pesticides, petroleum – based fertilizers, and sewage sludge based fertilizers with some notable exceptions. OFPA also required the establishment of the “National List of Allowed and Prohibited Substances” for use in organic agriculture. The National List includes allowed synthetic substances and prohibited non-synthetic (natural) materials. The NOP crop standards require that soil fertility and crop nutrients be managed through tillage and cultivation practices, crop rotations and cover crops, supplemented with animal and crop waste materials, allowed mined substances, and synthetic materials allowed on the National List. Similarly, crop pests, weeds, and diseases are required to be controlled primarily through cultural practices such as tillage and cultivation, hand weeding, crop rotations, sanitation, and the introduction of predators or parasites. When these methods prove to be insufficient, growers may use approved natural or synthetic Karen Klonsky is a specialist in Cooperative Extension, Department of Agricultural and Resource Economics, University of California, Davis and member, Giannini Foundation of Agricultural Economics, University of California.
40 citations
TL;DR: In this paper, the authors discuss the use of cover crop species and management practices based on the needs and goals of sustainable production in vegetable production and summarised studies show that further research is needed for best practices of vegetable production especially using living mulches and roller crimper for termining cover crops before planting vegetables.
40 citations
TL;DR: There were close relationships between grain N and P concentrations in both crops and microbial biomass C,N and P, suggesting that soil microbial biomass can be used as an indicator of nutrient availability to plants, and significant positive residual effects of organic fertilizer, especially horse manure were observed on the grain yield of the succeeding winter wheat.
40 citations
06 Oct 2006
40 citations