1. Basic Soils, Watering and Fertilizing Heidi Kratsch
University of Nevada Cooperative Extension
2. Soil and Plants Anchorage and stability Aeration Water
Nutrients
3. Soiltexturaltriangle NRCS, Bozeman Mont.
4. Depth (Feet) 0 SAND SILT 1 CLAY 2 3Water movement through
different soil types
5. What affects water loss fromplants? Sunlight Temperature
Humidity Wind
6. Large leaves have more pores What our eyes see What our eyes
cant see
7. How to water your plants Applying too much water at one time
leaches nutrients from the soil. Applying water too frequently
suffocates roots.
8. Get your hands in the soil! Dig down 4 to 6 inches in the
soil. If the soil feels dry and crumbly, its time to water.
9. Deep watering encourages deeprootsDeep rooted plants are
less susceptible to water stress
10. How much do I water? Sandy soils need water more
frequently. Water more frequently in hot weather. New seedlings or
transplants need more frequent watering. Large, deep-rooted plants
need deeper watering.
11. Watering methods Hand watering Time consuming Are you
providing consistent amounts to each plant?
12. Watering methods Furrow irrigation Wide and shallow rows
(no more than 3-4 inches deep) Must have level ground. Best with
large plants (like tomato) in sandy soils.
13. Watering methods Soaker hose Easy Inexpensive Saves water
Hoses must be replaced often.
14. Water methods Drip irrigationMulch
topreventwaterevaporation
15. Stake tubing to keep in place Internal emitter
16. External emitter staked on a riserAttach an externalemitter
to the endof -inch feederline and stake witha riser to
mistplants.
17. Ends must be capped or clamped tomaintain water pressure.
Hose end cap Hose end clamp
18. Need a water source Automatic timer Main line Filter riser
Pressure regulat
19. Purchasing Fertilizers Terminology: Balanced (16-16-16)
Complete (5-10-15) Single element (46-0-0) Numbers refer to
percentages of nitrogen (N), phosphorus (P), and potassium (K) N P
K
21. Organic vs. synthetic fertilizersSynthetic Organic Provide
a quickly Goal is to enhance released source of soil for beneficial
nutrients on demand microbes that can Can cause leaching decompose
organic Fertilizer burn matter. Slowly released Timing is
important! Lower nutrient values Look for certified organic
products.
22. Organic fertilizersOrganic sources of N Synthetic sources
of N Bat guano Ammonium sulfate Blood meal Ammonium nitrate
Cottonseed meal Urea Fish emulsion Fish mealOrganic source of P
Bone meal
23. Nitrogen Deficiency Reduced growth Smaller leaves Chlorosis
(yellowing) Common in sandy soils low in organic matter
Over-irrigation
24. Phosphorus Deficiency Important in flower, fruit, and root
development More often a result of cold soils roots cannot take up
the nutrient Common ingredient in Purpling of leaf veins from
phosphorus starter fertilizers deficiency
25. Potassium Deficiency Many functions including movement of
sugars in plants Leaches readily from soils do not overwater.
Potassium deficiency of soybean plants
26. Nevada soils are alkaline Alkaline soils: pH is above 7
Soils that have not been greatly weathered or leached Soils high in
calcium Reduces solubility of all micronutrientsAdapted from
library.thinkquest.org by A. Miller
27. Adapted from ag.arizona.edu by A. Miller
28. Fertilizing is a two-step process FIRST: Leafy Root Use a
balanced Use a low N complete fertilizer early in the fertilizer
early in the season. season: 10-10-10 6-24-24 16-16-16 6-12-18
8-16-16eavy feeders require a SECOND fertilization with N during
the seaso Corn, garlic, onions, potatoes
29. Sidedressing Apply fertilizer 3 to 6 inches to one side of
plant or row. Water it in. Keep dry fertilizer off the leaves.
30. Artichokes Grow from transplants or seed (transplant 3-
Green Globe heirloom 4 weeks before FF date). Requires cool temps
to initiate a flower stalk. Drip irrigation is best; keep soil
moist; roots are shallow. Artichokes are flower buds. Requires high
N (21- 0-0) every 4 weeks starting 1 month after transplant.
31. Beans Water: Blue Lake pole type Keep soils moist but not
wet. Water most critical during flower and pod development.
Fertilize: Work 8-16-16 fertilizer into soil before planting. No
fertilizer after that.Lack of flower development or stringy beans
indicate water or heHarvest before bean seeds develop beans become
tough.
32. Peas Watering: Regular watering, Super Sugar Snap
especially at time of flowering. Harvest when pods are plump.
Fertilizing: Incorporate 8-16-16 pre-plant. No further N required;
Stringy peas are caused by plants fix their own N. heat or water
stress.
33. Beets Grow from seed. Water regularly using Detroit Dark
Red drip irrigation to keep soil moist. Moisture fluctuations cause
root cracking. Fertilize before planting with 8-16-16. Weed control
is Heat and water stress may essential! cause woody beets.
34. Carrots Double-dig heavy soils. Imperator Water Use drip
irrigation if possible. Avoid over-watering to prevent hairy roots
and forking. Fertilize: Apply 8-16-16 pre- Uneven watering causes
root cra plant. No further N required.
35. Broccoli Best grown as transplants. Calabrese heirloom
Water: Deeply and infrequently to encourage deep roots. Use mulch
to conserve water and control weeds. Fertilize: Pre-plant fertilize
with Buttoning soon after transplant balanced fertilizer (16- can
be caused by water or 16-16). nutrient stress. Sidedress with
(21-0-0) 4 weeks after planting.
36. Brussels sprouts Grow from seed started indoors. Long
Island Improved Water: Deeply and infrequently to encourage deep
roots. Use drip to provide even moisture. Use mulch. Fertilize:
Work balanced fertilizer into the soil before planting. Sidedress
with (21-0-0) Uneven watering promotes once or twice before
splitting, bitter taste and tip sprouts form. burn. Avoid
fertilizing during Harvest sprouts from the head development.
bottom up.
37. Cabbage Start early plant in ground where peas Red Acre
grew last year. Water: Water deeply and frequently. Moisture
fluctuations may cause head splitting. Keep heads up out of the
soil. Fertilize: Work balanced fertilizer Tip burn also occurs in
cabbage. into the soil before Uniform irrigation with moderate
planting. fertilization will prevent this Sidedress with (21-0-0)
problem. 4 weeks after
38. Cabbage/brussels sprout tip burn Calcium not transported to
rapidly expanding tissues. Common in sandy soils. Caused by any
condition that favors rapid growth. Avoid excess N during head
formation Tip burn on brussels sprou Maintain P:K ratio of 1:1
39. Kale Fertilize: Dwarf Siberian Organic matter and complete
all-purpose before planting Sidedress with N 4 weeks after
transplanting. Water: Deeply and frequently without allowing soil
Moisture fluctuations cause to dry out. kale leaves to become Use
drip irrigation and tough and develop off mulch. flavors. A light
frost intensifies flavor of fall- planted kale.
40. Lettuce Cool season veggie; temps above 80 F reduce Black
Seeded Simpson seed germination. Water: Water regularly to prevent
drought stress; uneven moisture causes tough leaves and off
flavors. Fertilize: Work in all-purpose Lettuce tastes best when
balanced pre-plant. grown rapidly and Sidedress with N after 4
harvested before the heat weeks. of summer.
41. Kohlrabi Least hardy of the cabbage family Purple Vienna
heirloom veggies plant seeds 1-2 weeks before last frost date.
Water: Frequently shallow roots Fertilize: Moisture fluctuations
Amend soil with organic matter and cause stems to be complete
fertilizer. tough and woody. Sidedress with N 3 Temperatures below
weeks after planting. 45 F trigger flowering.
42. Leeks Water: Roots are shallow; American Flag provide water
regularly. Fertilize: Amend soil with organic matter and complete
all- purpose fertilizer. Sidedress with N in May and early June
(fish meal works well). Mound soil around stalk (below joints) to
keep stalks white and mild. Weed control is especially important
during the first 2 months of growth.
43. Red Bulbing onions Torpedo intermediat e day Intermediate
or neutral day onions best in northern Super Star white (day
neutral) Nevada. Water: Water regularly due to shallow rooting.
Stop watering when tops fall over. Fertilize: Work OM and
all-purpose balanced fertilizer pre- If you plant your onions
planting. too late in the season, Sidedress with extra N in late
they may not form bulbs May and in June affected by day
44. Garlic Chesnok Red hardneck Hardy perennial plant dry bulbs
late Sept to Nov. Hardneck vs softneck varieties Water regularly
but stop when leaves turn brown and tops fall over. High nutrient
requirements Amend soil with organic matter and complete Early
white softneck fertilizer at planting.
45. Sweet Corn Requires maximum 90 days to maturity from seed
sunlight; warm season Silver Queen white heirloom Water: Regular
water, esp. during tasseling, silking and ear formation. Fertilize:
Amend soils with compost + 16-8-8 fertilizer. Sidedress with 46-0-0
Drought stress during ear when plants have 8-10 formation decreases
yield, leaves and again when lowers kernel quality and silks
appear. affects flavor.
46. Cucumbers Marketmore Love sandy soils and lots of room!
Fertilize before planting with all-purpose complete. Sidedress with
N fertilizer when runners develop. Water deeply by drip or furrows
Over- and under-watering causes: Bitter fruits Pointed ends
Misshapen Cucumber plants are vining and benefit from a
47. New Zealand Spinach Warm season spinach variety. New
Zealand Soak seeds 24 hours prior to planting. Water: will tolerate
periods of drought but tastes better with even watering Use drip
irrigation. Fertilize: Incorporate organic matter prior to
planting. Sidedress with OM or high- New Zealand spinach is N
fertilizer through the relatively pest and season. disease
free.
48. Potato Irregular soil moisture causes abnormal tuber Grown
from seed pieces growth. Soils must be 50 F Hill soil around plants
as they grow to prevent tuber greening. Water: Deep, regular
watering with drip irrigation. Reduce water as leaves yellow and
die. Fertilize: Pre-plant with balanced fertilizer Sidedress with
(21-0-0) after Many potato varieties seedlings emerge. will grow in
northern Nevada.
49. Tomatoes Sugar Sweetie cherry Grow from plants or seed.
Determinate vs. indeterminate Water: Water deeply using drip Use
mulch to keep soil moist. Fertilize: Amend soil with OM + balanced
complete fertilizer. Early Girl bush style No fertilizer after
50. Blossom-end rot Occurs on blossom end of fruits. Caused by
decreased availability to calcium Inconsistent watering practices.
Apply mulch Avoid fertilization with N during early fruiting. Do
NOT apply lime or gypsum.