POTATO INVESTIGATIONS LAB
Mimeo Report 57-L
r ~ b
October 1, 1956
RECOMMENDATIONS ON PRODUCTION OF VEGETABLES IN THE HASTINGS AREA
E. N. McCubbin
Tests have been conducted at the Potato Investigations Laboratory for the last
20 years to find new varieties of potatoes, cabbage, cauliflower and other vege-
tables that are superior to the old ones in yield, shipping and marketing qualities
and other characteristics. Tests also have been made with cabbage and cauliflower
to determine the kind, amount and method of application of fertilizers for most
profitable yields. Other studies have involved the planting of different size
potato seed pieces at different spacings in the row to determine effect of the rate
of seeding potatoes on yield.
The following recommendations are made on the basis of results obtained from
Glory of Enkhuizen
Red and Savoy:
Round Red Dutch
Snowball Perfection(for trial)
Snowball Y(for trial)
1Should be grown where the land is known to be infested with the cabbage
2 yellows organism.
Suitable for production in soil where Sebago cannot be profitably grown
because of scab.
Fertilization of Cabbage and Cauliflower
Fertilizers for the production of cabbage and cauliflower should contain 5 to
7 percent nitrogen, 7 to 9 percent phosphoric acid (P205) and 5 to 9 percent potash
(K20). Fertilizers for crops grown on light sandy soils should also contain 0.1 per-
cent B203 from borax.
Seedbeds.- Acid soils for seedbeds, particularly for cauliflower should be
limed Toe p 7.6 to prevent the development of whiptail. Apply the fertilizer at
rates of 1,000 to 1,200 pounds/A in bands in the row a few days before the seed are
sown. When the fertilizer is leached by heavy rains or when the foliage shows a
light green or yellow color, sidedress the plants with 50 to 75 pounds/A of nitrate
of soda or nitrate of soda-potash.
Fields.- Lime acid soils for cauliflower to pH 5.6 to prevent whiptail. Fer-
tilizes for both cabbage and cauliflower should be applied at rates of 1,800 to
2,200 pounds/A. It may be applied in a band in both sides of the row with a
tractor-drawn distributor a few days before the plants are transplanted; or placed
in sides of the row 1 to 2 weeks after the plants are transplanted. In the latter
case place the fertilizer 3 to 4 inches deep and about 3 inches from the plants.
Application of the fertilizer in sides of the rows can be done with tractor-mounted
fertilizer distributor and disks in one operation. Caution: Do not delay ferti-
lization more than 3 weeks after the plants are set or theyj~ magbe stune! .
Sidedress cabbage and cauliflower 2 or 3 times during the growing season with
150 pounds of nitrate of soda or nitrate of soda-potash per acre per application.
The first sidedressing should be applied on tops of the rows 2 or 3 weeks after the
plants are set. The second and third aidedressings are applied at 30-day intervals
after the first one unless leaching rains occur and the foliage shows a yellowish
color. Then the interval between sidedressings may be shortened to 20 days. Apply
these sidedressings when the foliage is dry or on sides of the row to prevent burn-
ing. Nitrate of soda-potash is preferred for the last sidedressing, as it may aid
in the production of more solid heads.
Rate of Seeding Potatoes
Effect of the rate of seeding Sebago potatoes on yield was studied from 1943 to
1953. Size of both whole and cut seed varied from 1- to 2-ounces and spacing of the
seed in the row varied from 6 to 14 inches. Thus, the seed planted/A ranged from
700 to 3,280 pounds. Fertilization for the different seeding rates was the same
during any one year and amounted to 2,000 to 2,400 Ibs./A of a 5-7-5 or a 6-8-8 fer-
tilizer. The potatoes were not irrigated during the growing season.
Yields of U.S. 1A and 1B potatoes increased as size of the seed was increased
from 1- to 2-ounces and as each size seed piece was planted closer in the row from
14 to 6 inches. After subtracting cost of the seed and costs of picking-up the
potatoes, hauling, packaging and selling the crop, highest returns were obtained
from planting 2-ounce seed 8 inches apart in the row. Results were the same with
whole seed tubers and cut seed pieces. This required the use of 2,450 lbs. of seedK
In a more recent study begun in 1956 the rate of seeding Sebago potatoes varied
from 1,500 to 3,500 lbs. of seed/A; and a 6-8-8 fertilizer was used at rates varying
from .8 to 1.2 lbs. per pound of seed or from 1,200 to 4,200 lbs./A. Two-ounce
whole seed tubers were used and the potatoes were grown on recently leveled land
which was irrigated as needed by the water furrow method.
Yields of U.S. 1A and 1B potatoes increased as the seeding rate was increased
from 1,500 to 3,500 Ibs./A and as the applied fertilizer was increased from .8 to
1.2 lbs. per pound of seed or from 1,200 to 4,200 lbs./A. After deducting costs of
the seed, fertilizer, picking-up the potatoes, hauling, packaging and selling the
crop, highest returns were obtained from planting 2,500 pounds of seed/A with 1.1
lbs. of fertilizer per pound of seed or 2,750 lbs. of the 6-8-8 fertilizer/A. This
required the use of 2-ounce seed pieces spaced 7.8 inches apart in the row.