The Raisin Industry: A practical treatise on the raisin grapes, their history, culture and curingEisen, Gustavus A.
History
The Raisin Industry: A practical treatise on the raisin grapes, their history, culture and curing
Eisen, Gustavus A.
Raisins; Viticulture -- California
_Soils and Ripening._--The soil here is the very best, and I doubt if
the same fine quality of soil is found anywhere else in California over
the same extended territory. I ride for miles and miles, everywhere the
finest and richest loam of a gray color, sometimes a little drawing
towards slate blue, sometimes again towards yellowish. It is immensely
rich, and can hardly be improved. There is, however, especially near
Orange, a different kind of soil consisting of the sand loam, but
intermixed with very coarse gravel. This soil is warmer but consequently
not so rich. The grapes ripen on it two weeks earlier, but yield only
one-half as much as those on the richest loam along the creeks. The
vines planted here were alone the Muscat of Alexandria. Strangely enough
I find no traces of Sultanas or currant, which latter, it seems, should
be especially adapted to the coast climate.
_The Vineyards._--In planting a vineyard, rooted vines were seldom used.
Cuttings grew so readily and so well that they were much preferred. I
am told that five per cent loss was unusual. It must be remarked that
the moister is the air the better it is for any kind of cuttings. The
moisture sustains and nourishes the wood while it is making roots. As to
distances, I remarked nothing new. Eight by eight or eight by ten feet
seems the generally adopted way. The nature of the soil and climate make
higher cultivation a necessity. McPherson Bros., who packed the largest
quantity of raisins and owned the finest vineyards, told me that they
plowed and cross-plowed and cultivated from fourteen to sixteen times
every season; in fact they never ceased working the ground. The pruning
was begun in December, or as soon as the leaves began to turn and fall.
To begin with, only a few spurs were left on every vine, and on every
spur three eyes, including the bottom eyes, but experience taught that
that way was not the very best. Gradually more space was given the
vines, and now from fifteen to twenty spurs to a vine in full bearing is
considered proper. Summer pruning is only practiced in some of the
vineyards where the ground is quite wet. The most profitable vineyards
were irrigated. The nearer the coast the more moisture there is in the
soil. Thus three miles west of Santa Ana the ground is always moist
enough to grow grapes, but as we come nearer the foothills to the east,
the moisture is farther down. At Tustin, Orange, and especially at
McPherson, irrigation was practiced in all first-class vineyards. Some
were irrigated in the winter only, and this was considered the best;
others again were irrigated also once in summer,--a practice the best
vineyardmen considered unnecessary and even injurious. I found land near
the town of Santa Ana moist one inch below the surface, where no
irrigation had even been practiced. Sulphuring was used everywhere to
counteract the oidium. For this purpose powdered sulphur was dusted
through the vines as soon as the grapes were as large as small shot.
Public-domain text, read in full here on John Shaqi.
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