Sustainable Vegetable Garden.)
It should be noted that:
- You may not reach maximum yields in the first year.
Also, 1 plant grown alone will probably not produce
as large a yield as 1 plant grown among several plants
under mini-climate conditions.^1 - Seeds grown out of season will take longer to
germinate and/or may decompose before they do
germinate unless grown under special mini-greenhouse
or shade netting conditions. - Closer spacing may be needed during the winter to
make up for slower plant growth during this period
and to create a balanced winter mini-climate. (Try
three-quarters or one-half the usual spacing with
lettuce in the winter.) Closer spacing can also promote
faster, balanced growth by more rapidly creating a
mini-climate. Thin any extra plants to make room for
larger plants. (Baby carrots and beets are a delicacy.) - You may need wider spacings in the humid tropics
during the wetter months.
Note: Microbial life-forms thrive and greatly increase in activity when the nighttime
air temperature reaches a minimum of 60°F. The next time you go out in the
morning early in the season and notice that your garden has grown a foot overnight
and is a darker, lush green, check the previous night’s temperature. You may be
surprised!
Other Key Air Temperatures
32°F: Nitrogen release begins in the soil.