August 14th, 2011
I planted brassicas on farms that spanned a roughly 50 mile stretch which of course have received varying amounts of rainfall. The whole area has been excessively dry with the last significant rainfall on June 28th, so with planting done the third week of July all soils were powder dry already.
Near my home we have had less then a 1/2" in 46 days now and it had virtually no effect on the dry soils which still look like this...
Zero germination thanks to no rain and mediocre organic matter
leaving nothing but bare, empty fields
35 miles to the west they received an inch of rain on top of the 1/2" we had and germination has now reached nearly 80-90%
Sown with a Brillion seeder, the seeding is uniform and coming up well
Fields with poor organic matter are a little less uniform
Then those with better OM
The Groundhog forage radish are clearly growing faster then the rape and turnips
15 miles east with .400" of rain since planting but higher OM thanks to rye/clover plow downs germination is not uniform but growth after germination is good despite the drought.
We have had day after day in which the forecast called for "drenching" rains of 1-2" and yet received not a single drop, so at this point I have little confidence in forecast from anyone. We have been by passed by storms when the forecast called for 70-100% chance of rain...that's just life and a reminder that regardless of how well we prepare, how much money we spend and how correct our planting procedures...we have zero control over the weather. Too much or too little can lead to complete failures or at best mediocre results.
Our only defense is to rely on multiple crops in each plot or field so that one can carry the load when another fails. Building soil organic matter and improving soil nutrients through crop rotations, tilling under green manure crops and soil testing to help us maintain balanced levels of soil nutrients and PH can be great "crop insurance" when the weather challenges us.
On some fields a rain now and then may get us by, on others it will be "rye to the rescue" as we re-plant using rye as the cornerstone in a mix that is far more drought tolerant.
Once brassicas get a good start they can take some dry weather and a friend was fortunate to get an inch of rain right after planting which made a significant difference in growth! He is hoping for rain just as I am but for now...his sure look a lot more promising!