High Yields on Organic Corn. Yes, it’s possible.

As organic crop and dairy farmers, one of the most common questions we are asked about organic farming is this: “How do you grow corn? I’ve heard/read that organic corn is really difficult to grow organically – it gets over run with weeds and because chemical fertilizer isn’t an option, it only yields half of what could be grown conventionally.”

Here’s our answer to that…

As we’ve shared in the past (here and here), organic farming revolves around practices that increase soil health. Whether it be cover cropping, using manure or compost for fertilizing, or rotational cropping, organic farming requirements all have one over-arching goal: growing and maintaining healthy soil. Let’s take two of our corn fields as an example.

Field number 1, here at the home farm, has been farmed organically for 5 years now. It started out as pasture, had cow and chicken manure applied multiple times per year, and last summer was rotated into corn. We planted a triticale cover crop last fall, harvested it in the spring, spread chicken manure, plowed under the residue and seeded it in corn for one last season before it will be rotated back to grass. We also have irrigation here at the farm and irrigated the corn three times this summer. This field yielded 29-30 tons/acre of corn silage, the highest we’ve ever recorded on our farm. (Incidentally, the custom harvesting crew was very favourably impressed, stating that this corn was better than the majority of what they had harvested in our area so far this year. )

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Field number 2 is part of a new long term lease that we acquired in the spring of 2016. It too is in its second year of corn and previously was a hazelnut orchard. No manure had been applied for more than two decades. Soil testing showed nearly no organic matter present. Last year, we applied chicken and dairy manure before seeding the corn. A hot dry summer with no irrigation presented a pretty dismal picture last fall: only 13 tons per acre of corn silage. A very very poor return on investment of time and money (land rent & seed).

 

But we weren’t giving up.

We know that organic farming isn’t about quick fixes, it’s about long term gains.

A conventional farmer would probably have added fertilizer with the corn seed and perhaps side-dressed with a specifically tailored chemical fertilizer later in the growing season. It would likely have resulted in a better crop yield. But it would have fed just the plant and not addressed the underlying problem of poor soil health. Our approach has been to utilize a winter cover crop, applying more manure this spring, and plowing under the cover crop residue before seeding. Just that one year of adding organic inputs has worked wonders! With more organic matter decomposing and breaking down in the soil, the corn crop had more “food” throughout the growing season. The added organic matter also helped the soil to retain moisture even though rain was pretty much non-existent again this summer. The result? With very similar & equally unfavourable weather conditions, a 65% increase in yield! This section will now be rotated into a grass/alfalfa mix for the next six years before our rotation brings corn back to this piece. Can you imagine how much better still that crop will be after years of building up that organic matter? It’s such an exciting prospect.


I guess the point is this: organic farming done well can definitely hold its own in “competition” with conventional farming when comparing yields. We may have different methods of achieving those yields, and organic farming often precludes the use of “quick fixes”, but based on this and other examples, it should be apparent that generalizations that organic farming = decreased crop yields are neither warranted nor accurate. Additionally, I believe that so many of the organic principles have amazing benefits for the land that we’ll leave behind to future generations. I’m certain of this: while organic farming may not be for everyone, it certainly is a good fit for our family and farm!
Any questions? Feel free to ask.

Why Organic?

This week, September 20-28, is Canadian Organic Week, a time to celebrate organic food, farming and products across the country. The goal of Organic Week is to involve Canadians in organic agriculture and help them learn about the benefits of organic farming and its positive impact on the environment.

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Since announcing our plans to transition to organic farming, we’ve heard many interesting and humorous assumptions about this type of farming. When talking about our plans, it wasn’t uncommon to hear these types of responses: “Are you going to be growing a beard and sporting dread locks to fit into the hippie farming community?” or, “The only difference between conventional and organic farming is that organic farmers spray RoundUp at night.” or, “Organic? Are you sure? Your fields will soon be overrun with weeds and crop disease!” or, “Organic farmers aren’t allowed to use antibiotics, so instead of treating sick cattle, they leave them to suffer and die.”

Although these responses were sometimes humorous, we noticed that it really emphasized the lack of knowledge about the organic way of farming. We’ve learned a lot in the two years we’ve been farming organically, and we’d like to share some of the knowledge we’ve gained in that period of time with you. I think Organic Week presents an excellent opportunity to describe organic dairy farming and why we decided to make the transition from conventional dairying to organic milk production.

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Approximately two and half years ago, during a conversation with an organic dairy farmer friend, we were told about the demand for organic milk products, the opportunities for growth in the organic sector and the premium paid to organic dairy farmers. This conversation prompted us to seriously think about transitioning to this type of farming. After all, we already employed numerous organic practices: our cows were on pasture during the summer months, our cows were not fed large quantities of grain, and our antibiotic and fertility drug use was quite low. We researched the organic system and found that although the transition would be labour intensive and time consuming, it was a challenge we couldn’t resist accepting. This decision was originally made for mostly economic reasons but has transformed into a firm belief in the organic system’s merits.

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Our dairy herd enjoying a sunny early fall day on pasture.

So what does “organic” actually mean and how does it apply to dairy farming? Officially, the word “organic” refers to the way agricultural products are grown and processed. Consumers can be assured that organic food is produced using environmentally and animal-friendly farming methods. Organic certification tells the consumer that the product they purchase has been inspected and verified to have been produced and processed according to the Canadian Organic Standard. This Standard is every organic farmer’s bible. It details the required production methods for any type of crop or livestock, and includes a list of Permitted Substances which are permitted for use in organic farming (eg manure, compost, vitamins and minerals, etc.). In organic dairying, both the crops grown and the livestock that are raised and milked must be certified to have been grown and managed according to the Standard.

The main differences between organic and conventional dairying can be divided into two categories: crops and cattle.

Crops:

  • No chemical fertilizer use permitted. We use a combination of cow manure and composted chicken manure to fertilize our crops.
  • No synthetic pesticide use permitted. Instead of using herbicides to control weeds, we utilize mechanical cultivation techniques and crop rotation to minimize weed spread and growth. Our corn crop is seeded later than usual (early June) to minimize wire worm problems. Wire worms move deeper into the soil as the soil warms, so seeding in June helps to prevent loss of corn plants to this pest, as well as ensuring that the corn grows quickly and doesn’t become choked out due to weed growth.
  • Crop rotation and cover crop seeding/mulching/integrating into the soil are integral parts of an organic farm plan
This year's organic corn crop

This year’s organic corn crop

Cattle:

  • must be fed 100% certified organic feed (GMO free)
  • must have access to pasture during the growing season
  • must gain 20% of their forage intake (dry matter basis) from grazing during the growing season
  • must have access to a walkout area during the winter months and if pasture is inaccessible due to inclement weather during growing season
  • can only be treated with health care aids listed in the Permitted Substances List
  • If these health care aids fail and other drugs must be used, milk withdrawal is 1 month or twice as long as the labeled withdrawal period, whichever is longer.
  • A cow can only be treated with antibiotics twice in one year before losing organic status
  • Organic farms in BC must also adhere to the Code of Care for the Handling of Dairy Cattle (which is mandatory for all dairy farms in BC starting next month.) The Organic Standard’s guidelines and rules with regards to the care and handling of dairy cattle are at least equal to, and, in some cases, more strict than the Code.

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Organic Certification Process.A farmer wishing to transition to organic must first become certified by an accredited certifying body. The certifying body collects all of the farm’s information:

  • a detailed list of land history and which inputs have been used in the past;
  • soil and water tests;
  • a farm plan describing all crops and livestock grown on farm, crop rotation plans, and pest management plans;
  • field maps;
  • water tests;
  • soil tests;
  • crop sample tests;
  • livestock density charts;
  • pasture log
  • herd treatment records
  • etc.

The initial application process is complicated and time consuming; subsequent yearly applications are much more streamlined and less labour intensive. Next, the certifying body arranges for the farm to be inspected by an independent verification officer. The verification officer visits the farm, inspects all fields and crops, livestock, and farm buildings and then meticulously combs over and audits the farms production records, input records, sales receipts, invoices, etc. Once the verification officer has finished the inspection, s/he prepares a report for the certifying body, identifying any problems or areas where the farm is non-compliant to the Standard, or any areas where the farm has an Opportunity for Improvement (OFI), and, finally, recommends whether the farm is eligible for certification. This process is repeated at least once a year; each farm is inspected once yearly with the possibility of extra unannounced inspections.

Our organic reference binder and organic records binder. I think they'll both be getting fatter as the years pass!

Our organic reference binder and organic records binder. I think they’ll both be getting fatter as the years pass!

Land to be included in the organic farm plan must be managed according to the standard for three years before being certified organic. Our land is currently in its third year of organic management, which means it has T3 status. The last prohibited substance (chemical fertilizer) was applied to our land in August 2012. Our land will be certified organic next August.

Cows beings transitioned to organic must be managed organically for a minimum of one year before the milk they produce is considered organic. Many farms considering changing to organic milk production choose to sell their herd and start over with certified organic cows, eliminating the need for a transitional period. We chose another route, preferring not to lose our years of crossbreeding to Brown Swiss and the superior (in our opinion!) cows and heifers this crossbreeding produced. Therefore, starting November 1, we will begin transitioning our herd to organic. During the herd transition year, farm raised crops can be fed to the cows. The first nine months of the transition, they must be fed a minimum of 80% organic/farm raised feed, with 20% conventional feed permitted. The final three months, all feed must be organic/farm raised. As soon as the herd is fully certified, all crops fed must be organic (no T3 feed permitted). After this lengthy land and herd transition, we’ll certainly be pleased to see the organic milk truck loading our first tank of organic milk in November 2015!

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In conclusion:

In our opinion, the organic industry provides valuable choices to consumers. We feel a sense of pride and accomplishment resulting from our efforts to farm sustainably, utilizing environmentally friendly, traditional farming practices, while providing consumers with the opportunity to choose foods that best align with their personal choices and ideals. Although the organic way of farming is a good fit for our family and farm, this is not true for all farms, neither should it be. I admire and respect farmers who choose to farm as we formerly did; they also are good stewards of the land, provide excellent care for their animals, and are great examples of the types of people needed to feed the world. But I believe that the organic industry is vital to agriculture as well, so that all consumers can find foods that they feel best benefits their needs and wants, either conventionally grown or certified organic. And as a farmer, I believe that is our most important, most beneficial job: supplying the world’s population with foods to fit their dietary choices. Up until this point, we are pleased with our decision, and, as we travel further on this organic journey, we’re excited to see what the future has in store for our cows and our family!