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Soils, Fertilizers and Irrigation

- If Your Land Needs It At All
Alfalfa Over Hardpan
Alkali Gypsum And Shade Trees
Almond Hulls And Sawdust
An Abuse Of Grape Pomace
Application Of Manure Ashes
Applying Thomas Phosphate
Artesian Water
Ashes And Poultry Manure
Barnyard Manure And Alkali
Blasting Or Tiling
Bones For Grape Vines
California That I Am Very Much Puzzled Which Kind To Select
Caustic Lime Not A Good Absorbent
Charcoal Is A Medicine Not A Food

More from Soils, Fertilizers and Irrigation

One Thousand Questions In California Agriculture Answereds

1/2 Pounds Gain In Weight Per Day
10 Cents A Hundred For Crushing And The Hauling
18 To 20 Inches Above The Ground
3/4 To 1 Pound Of Rolled Barley Or Corn For Each 100 Pounds Live Weight
4 Ounces Olive Oil She Will Recover After Parturition
50 Per Cent Was White While The Balance Was Yellow And Went To The Top
5:30 P M Being Fed At 7 A M?
A Dry Mash
A Free Martin
A Mangy Cow
A Neck-swelling
A Point On Mating
A Sterile Cow
A Summer Hay Crop

Oranges Over High Ground Water

Does California experience show that citrus trees can be grown upon land
successfully where the water-level is 6 feet from the surface; that is,
where water is found at that level at all seasons and does not appear to
rise higher during the rainy season?

We do not know of citrus trees in California with ground-water
permanently at six feet below the surface. If the soil should be a free
loam and the capillarity therefore somewhat reduced, orange trees would
probably be permanently productive. If the soil were very heavy,
capillary rise might be too energetic and saturate the soil for some
distance above the water-level. In a free soil without this danger the
roots could approach the water as they find it desirable and be
permanently supplied. Orange trees are largely dependent upon a shallow
root system, the chief roots generally occupying the first four feet
below the surface. From this fact we conclude that deep rooting is not
necessary to the orange, although unquestionably deep rooting and deep
penetration for water are desirable as allowing the tree to draw upon a
much greater soil mass and therefore be less dependent upon frequent
irrigations and fertilizations.

Next: Depth Of Ground-water

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