Organic agriculture trade shows,bay area gardening forum,gardening quote of the day - Good Point

Author: admin, 19.06.2016. Category: Garden Soil

Today’s organic farmer mixes a blend of high tech scientific technology with old school agriculturally proven farming techniques. To mitigate GHG emissions and retain soil fertility, organic agriculture might be a wise choice for decreasing the intensive use of synthetic fertilizers, protecting environments, and further improving crop yields.
To explore the potential of farmlands acting as a carbon sink without yield losses, Jiang Gaoming, a professor at the Chinese Academy of Sciences’ Institute of Botany, conducted an experiment on a temperate eco-farm in eastern rural China. Organic farming uses fertilizers and pesticides but excludes or strictly limits the use of manufactured (synthetic) fertilizers, pesticides (which include herbicides, insecticides and fungicides), plant growth regulators such as hormones, livestock antibiotics, food additives, genetically modified organisms, human sewage sludge, and Nano.
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Organic agriculture is a production system which avoids or largely excludes the use of synthetic fertilisers, pesticides and growth regulators.
Organic farming restricts the use of artificial fertilisers and pesticides, and it promotes the use of crop rotations, green manures, compost, biological pest control and mechanical cultivation for weed control.
Advantages of organic agricultureOrganic agriculture aims to improve soil fertility and N supply by using leguminous crops, crop residues and cover crops, to eliminate fossil fuel used to manufacture N fertiliser.
Organic farming methods are more natural, more permeated by biological processes, and utilize a more overall holistic approach to farming. It is a pest control method using a hybrid mix of parasitism, herbivory, predation, and other natural solutions to assist pest control.
Some argues that human can reverse global worming by sequestering several hundred billion tons of excess CO2 through regenerative, organic farming, ranching and land use.
Recent research showed that replacing chemical fertilizer with organic manure significantly decreased the emission of GHGs.
Crop residues were applied to cattle feed and the composted cattle manure was returned to cropland with a winter wheat and maize rotation. It can sequester carbon using crop rotations, crop residues, animal manure, legumes, green manure, and off-farm organic waste (Lampkin et al., 1999). The most effective ones are fertilisation by animal manure, by composted harvest residues, and by leguminous plants such as (soil) cover and (nitrogen) catch crops. The addition of the crop residues and cover crops leads to the stabilisation of soil organic matter at higher levels and increases the sequestration of CO2 into soils.Organic agriculture increases soil’s water retention capacity, which would enable a crop to go longer into a drought cycle assuming an initial full profile. The mitigation is accomplished by sequestering C in soils due to intensive humus production (Smith et al., 2007). Essentially, there are four methods of organic farming techniques considered by experts to be the best. It is important to remember, for inclusive purposes, that this method of pest control lists weeds, plant diseases, mites, and insects. Organic farming can reverse the agriculture ecosystem from a carbon source to a carbon sink.

Crop yield and greenhouse gas (GHG) emissions were carefully calculated according to the Intergovernmental Panel on Climate Change (IPCC) Guidelines for National Greenhouse Gas Inventories 2006. It can also reduce carbon emissions by avoiding the use of fossil fuels used in the manufacture of the chemicals used to make synthetic materials.
Legumes are planted to fix nitrogen into soil, and natural insect predators are encouraged.
Introducing grass and clover into rotations for building up soil fertility, diversifying the crop sequences, and reducing ploughing depth and frequency also augment soil fertility.
The sequestration of one tonne of soil carbon using cattle manure requires $260, but return will increase by $1,066 (4.1 return ratio) as a result of the addition. Regular applications of livestock manure can induce substantial increases in soil organic carbon over the course of a few years (Lal et al., 1998). Gerundio of the Department of Agriculture (DA) said.Speaking before the participants to the first Organic Agriculture Program orientation and briefing in Eastern Visayas on November 23, at the Ritz Tower de Leyte, RED Gerundio said, “it is not true that organic agriculture would hamper us from achieving our goal on food security. They include the following:Crop Rotation Crop rotation (or irrigation) is a series of differently grown plants located in the same fields in sequential seasons.
Biological Pest Control is also integrally linked to integrated pest management (IPM) programs. These four methods of the most efficient and effective forms of organic farming methods are considered the best by folks who matter most ─ organic food farmers.
Crops are rotated to renew soil, and natural materials such as potassium bicarbonate, and mulches are used to control diseases and weeds.
All these techniques increase carbon sequestration rates in organic fields, whereas in conventional fields, soil organic matter is exposed to more tillage and consequent greater losses by mineralisation.
Some experts estimate the cost of manure to be around $1,000, in which case the additional returns would almost vanish. Several studies show that organic farming will even help us attain higher productivity on a long term basis. Maize stover leads to 1,830 kg ha-1 yr-1 carbon inputs with $37 per ha cost and 5.4% carbon sequestration efficiency. Cropland to Sequester Carbon and Mitigate the Greenhouse Effect, Ann Arbor Press, Chelsea, Michigan, USA.
This technique of organic farming mitigates pest and pathogen build up that occurs when one species of plant is regularly cropped. However, organic farming originated as a small-scale enterprise with operations from under 1 acre (4,000m2) to under 100 acres (0.40km2). Let’s go back to the natural way of farming for it is the only means to prevent the environmental and life-threatening effects of synthetic farming,” RED Gerundio told the participants composed of local chief executives, municipal agricultural officers, agricultural technologists, and representatives from the academe, partner-government agencies and some NGOs.RED Gerundio who is an avid organic agriculture advocate disclosed that Region 8 has an allocation of P17 million from the total budget of P900 million for the whole country.
By alternating shallow and deep rooted plants, soil structure and fertility is tremendously enhanced.Green Manure Green manure, essentially, adds a variety of substantial nutrients and life sustaining matter to soil.

Crop rotation, cover cropping, reduced tillage, and application of compost are varieties of methods used in organic agriculture. Sustainable farming practices and cycles evolved over centuries, integrated with livestock rearing. For example, in case of UK 1.5% of national energy consumption and 1% of national greenhouse gas emissions would be saved (Mae-Wan and Ching, 2008). Organic agriculture is one of the important options of carbon sequestration which can reduce greenhouse gases.
For instance, farmers of ancient India are known to have evolved nature-friendly farming techniques and practices such as mixed cropping and crop rotation.Besides overcoming a tradition of recently adopted synthetic fertilisers and pesticides, the primary barriers to adoption of organic farming are the lower productivity and consequently higher prices, as well as lower produce quality in the marketplace. Earlier studies showed that GHG emissions would be 48-66% lower per hectare in organic farming systems in Europe.
Greenhouse gas emissions due to the applications of synthetic fertilisers are estimated to be 1,000 million tonnes annually. It is then plowed and meshed into the soil while still green or a short time after flowering. Greater education of farmers and the public needs to be done to show that the environmental and long-term sustainability advantages of organic agriculture are worth to the added current costs. The lower emissions were attributed to zero input of chemical N fertilisers, less use of high energy consuming feed stock, low input of P (phosphorus) and K (potassium) mineral fertilisers, and elimination of pesticides.
One usually associates green manure with organic agriculture and the method is considered a sustainable annual cropping technique. Historically, green manure was associated with fallow cycle of crop rotation; this allows soils to easily recover. Another 40 per cent of the GHG emissions of agriculture could be mitigated by sequestering carbon into soils at rates of 100kg of C ha-1 yr-1 for pasture land and 200kg of C ha-1 yr-1 for arable crops.
By combining organic farming with reduced tillage, the sequestration rate can be increased to 500kg of C ha-1 yr-1 in arable crops as compared to ploughed conventional cropping systems, but as the soil C dynamics reach a new equilibrium, these rates will decline in the future. Low greenhouse gas agriculture: Mitigation and adaptation potential of sustainable farming systems, Rev. Contribution of working group III to the fourth assessment report of the intergovernmental Panel on Climate Change [B.

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