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Archive | November, 2017

Electrical Conductivity: The Pulse of the Soil

Soil consultants have traditionally used electrical conductivity to measure salinity. Conductivity can tell us much more about the physical structure and health of the soil, though, and can help  indirectly measure crop productivity.

electrical conductivity - the pulse of the soilWhen we walk into our home on a dark night, the first thing we usually do is turn on the lights. With the flip of a switch we complete the electrical circuit, initiating the flow of electricity to the light bulb and illuminating our home.

In the human body, electricity controls the flow of blood from the heart to all the organs. In the same way that flipping a switch turns on a light, electrical signaling in the body tells the heart when and how often to contract and relax. These electrical signals can be altered by the intake of nutrients. For example, the intake of high-salt foods can lead to a higher pulse rate. A higher pulse rate forces the heart and other organs to have to work harder in order to function properly. This extra work certainly puts added stress on the body. In contrast, consuming a balanced form of energy can reduce the stress put upon the body.

Waking up in the morning and only consuming caffeine does not give you the same energy as waking up and eating a balanced breakfast. While both inputs may increase your readiness in the morning, they affect the human body in different ways physiologically. Inputs into any biological system, whether human, animal, plant, or soil, affect the system in unique ways. Continue Reading →

Eco-Ag 2017: Make the Most of the Conference

 Be an Acres Conference All-Star:
Catch a flick: We work hard to bring exciting, informative films to each conference for your viewing pleasure. The films are shown around lunchtime (12:30 p.m.), so check the conference schedule and don’t miss out. This year’s selections include: Sustainable and Inhabit: A Permaculture Perspective.
Meet the Author! We hold numerous book signings throughout the conference. Check the schedule, buy the books in our on-site bookstore, meet the author and get your copy signed from eco-ag greats like Dr. Vandana Shiva, Michael Phillips and André Leu.
Get your questions answered in Consulting Halls: Meet with top eco-ag consultants in a small-group setting … a rare opportunity to obtain valuable advice specific to your farm’s needs.
Trade Show: Don’t forget to visit the more than 100 vendors of high-quality eco-inputs and innovations in our Trade Show. Whether you are looking for a specific product or want to pick someone’s brain, the trade show delivers.
Nutritious eats: No need to leave the hotel in search of quality food (although there are lots of great options in Columbus …we’ll highlight a few later) with Miller’s Organic Farm and Market 65 located in the Trade Show.
Continued learning: Each conference keynote speech and all lecture sessions are recorded live. The recordings are available during the conference as they are produced and full sets of CDs and MP3s are available after the conference.
On-Site Bookstore: Take advantage of excellent prices on all our titles…without worrying about shipping!
Top-Tier Keynoters: Treat yourself to a mind-expanding session each evening at 7:30 p.m. including soil ecologist Dr. Christine Jones, author and activist Dr. Vandana Shiva and author Courtney White.
Get Social!: Don’t forget to follow Acres U.S.A. on Facebook and Twitter for news and tips about what’s going on in Columbus … and share your photos and comments with your fellow attendees using #acresconf17. Continue Reading →

Calves: Rearing Them Right

Tips for rearing calves from former New Zealand dairy farmer, agricultural consultant, and all-round farming legend Vaughan Jones, interviewed by Stephen Roberts.

Calf Rearing Starts Before Calving

Vaughan, let’s talk first about the financial impact of correct calf rearing.

Correctly-reared calves continue to grow at a faster rate after weaning than poorly-reared ones

Correctly-reared calves continue to grow at a faster rate after weaning than poorly-reared ones.

If you are too busy, unsure about calf rearing, or don’t have the proper facilities, then forget it and buy weaners. Sometimes it is more profitable to buy yearlings, which often sell cheaply.

Calf rearing is a specialty job requiring specific knowledge. Correctly-reared calves continue to grow at a faster rate after weaning than poorly-reared ones, and the eventual size of adult animals relates to their weaning weight. It’s the farmer’s knowledge of this that encourages the high bidding at calf sales for well-reared ones.

How important is managing cow nutrition prior to calving?

Successful calf rearing starts before calving, with the dams not being too thin or too fat, on a rising plane of nutrition from drying off to calving. Calves can die within the first month of being born due to mineral deficiencies in the dams before birth. Deficiencies can be caused by insufficient feed for the dam or poor quality feed that lacks necessary minerals, especially selenium, copper, and iodine.

Continue Reading →

Expanding Organic Agriculture

Farmer, Author & International Organic Authority André Leu Discusses Expanding Scope of Regenerative and Organic Agriculture and its Existing Challenges

André Leu on expanding organic agricultureAs two-term president of the International Federation of Organic Agriculture Movements (better known as IFOAM — Organics International), André Leu has logged hundreds of thousands of air and land miles on behalf of sustainable farming. From 2012 until the fall of 2017, his portfolio took him to dozens of countries where he met farmers, government officials, NGO activists, scientists and diplomats. He is a familiar face at various United Nations agencies as well. Somehow he also found time to write an essential book for Acres U.S.A. Press called The Myths of Safe Pesticides and its newest companion, Poisoning Our Children: The Parent’s Guide to the Myths of Safe Pesticides. It is safe to say that precious few people share the depth and breadth of Leu’s knowledge about sustainable agriculture around the globe. Along with devoting more time to his 150-acre fruit farm in tropical Queensland, Australia, Leu will bring his expertise to the presidency of Regeneration International, the education and advocacy organization of which he is a founding member. Thus, the talk below functions as both an exit and an entry interview.

Interviewed by Chris Walters Continue Reading →

Homemade Fertilizers

With the economy and farm finance more and more problematic, interest is growing in running farms with fewer, more accurate and less expensive inputs and homemade fertilizers can help cut costs and keep fertility on the farm.

homemade fertilizer

Vermiwash made in a small biodynamic apple orchard in the
Himalayan foothills of Uttaranchal in sight of Nanda Devi, India’s second highest
mountain.

Formerly we’ve overdosed with a plethora of harsh fertilizers — especially nitrogen. As a result we’ve burned up the better part of our soil carbon, and this has reduced our rainfall.

By burning off carbon, we have created droughts even as ocean warming has sent more evaporation into the atmosphere. We have ignored that few things have more affinity for hydrogen than carbon, and if we want rain to adhere to and permeate our soils we need to build soil carbon.

We thought salt fertilizers were cheap, and the stunning results encouraged us to wish away any hidden costs, no matter that earthworms disappeared simultaneously with the food chain that supported them. Our soils got hard and sticky as magnesium stayed behind while nitrates leached, carrying away silicon, calcium and trace minerals. The soil fused when wet, shed water when it rained, and we continued to get less for more.

As if this wasn’t enough, the mind-set we were sold was get big or get out. As our net margins dried up and our future prospects evaporated, our water dried up and our land became exhausted. Continue Reading →

Aphid Control: Lady Beetle as Beneficial Insect

Lady bugs eat aphids

The convergent lady beetle is a common species of lady beetle.

When searching for aphid control measures, turn to nature first. Numerous vendors sell beneficial insects via their websites along with offering plenty of useful information. For example, ARBICO Organics (Arizona), Orcon (California), Gardens Alive (Indiana), and Nature’s Control (Oregon) sell insect predators in large numbers and at least one vendor sells it as a “beneficial insect program” with weekly shipments adjusted to your pest control needs. Note that beneficial insects are slow acting in pest outbreak situations, so use beneficial insects preventively when pests are in low populations and have not overwhelmed the crops you are trying to protect. Follow the release instructions that come with the products, and modify your spray schedule to adjust for the presence of beneficial insects.

Aphid Control: Convergent Lady Beetle

The convergent lady beetle is a very common species of lady beetle among the numerous others present in any crop field. The convergent beetle is common in Alabama and also a very popular beneficial insect sold by companies. The insect name comes from the two white lines seen on the thorax of adult beetles that seem to merge together on the top. Continue Reading →