Monday, 18 February 2013
I'm both IN and OUT of my element. IN it, in that I've spent the better part of the last 6 months learning about organic land care, and OUT of it in that I'm embarking on a entirely new way of doing things (permaculture).
I've begun (extreme emphasis) to create a design plan for our property according to permaculture ethics/design and it's safe to say that NOTHING will be the same as before. We are starting with a fresh slate this year and I'm actually grateful that it's still winter as I'm nowhere NEAR ready to begin making changes (there's still SO much to learn).
I DO know that this year, I'll be experimenting with cover crops to help me deal with soil compaction in some areas of our garden. Here's my reasoning, taken from my soil management assignment submitted during my Organic Master Gardener Course:
1) April seeding (contingent on snow melt) of climate appropriate green manure crops (small seed fava beans and buckwheat in my case) will be beneficial for the following reasons:
- improving soil structure when the manure crop is cut down and is decomposed by the soil biology (creating humus).
- loosening compaction as the roots reach down in search of nutrients, and as humus is created during decomposition.
- improving the water holding capacity of my soil by protecting the exposed soil from water loss due to evaporation and drying winds, and again as water holding humus is created through the decomposition process.
- optimizing fertility by providing plenty of food for the soil microbes when the cover crops are mulched on the garden in late Spring. Additionally, fava beans are nitrogen fixing which is beneficial for feeding the summer crops that will follow.
- Growing a green cover crop will also help my soil by suppressing “weeds” (physically and allopathically).
In late May (5-6 weeks post seeding per my research) the green manure crops will be cut and left to decompose on the soil for 2 weeks before planting, providing the soil microbes with food. [i]
2) Immediately following the cutting of the green cover crop, watering in Effective Micronutrients (EM) and inoculating the soil with Mycorrhizal Fungi will speed the decomposition of the green manure crop and eliminate the formation of toxic gasses. [ii] This decomposition will help to build humus, which will relieve compaction, improve soil structure and improve the water holding capacity of my soil, additionally, optimizing soil fertility. The land where my garden now sits was likely sprayed with pesticides/fertilizers at some point in the past (the land was previously used for agriculture over 30 years ago). Additionally, due to tilling, [iii] and lack of oxygen because of compaction, the numbers of fungi and beneficial bacteria are likely greatly reduced. Boosting the beneficial bacteria/microorganisms and fungi colonies by expanding the diversity of species, will be a helpful step in restoring the health and vigor of the soil ecology.[iv]
3) Adding high quality compost in Spring to feed the EM enhanced soil biology will improve soil structure, optimize soil fertility, improve the water holding capacity of my soil and help to remedy compaction. Amending the soil with compost supports the process of decomposition and consequently, the production of humus, which is vital for addressing the above problems in my soil. [v]
In theory, this "cut and dried" plan should work, but I'm eager to see what REAL life experience brings... Mother Nature is a powerful (and often unforgiving) teacher.