Canadian Prairies: Cold Weather And Some Dryness Raise Questions For Crop Prospects
During most of
May 2002, unseasonably cold weather plagued the Prairie Provinces of Canada,
keeping soil temperatures too cold to support germination of spring grains and
oilseeds. Weekly temperatures
averaged 2 to 8 degrees C below normal. Precipitation
was also well below normal, adding negative pressure on 2002 Spring Crop
prospects. The driest areas are
eastern Alberta and the northern part of the growing region in Saskatchewan.
Moisture conditions in southwestern Alberta, British Columbia, and
southern Manitoba are closer to normal. During
the week of May 26 through June 1, 2002, warmer weather returned to the
Prairies, but the region remained too dry.
However, appreciable amounts of precipitation arrived in southern
Alberta, central Saskatchewan, and southern Manitoba last week, and the rain
continued through the weekend. The
moisture was excessive in some places in southern Alberta, but it should have
assisted recently planted spring crops become established in previously dry
parts of the prairie.
Italy: Heavy Rainfall Should Favor Wheat and Summer Crops Across the Po Valley
During the first two weeks of May 2002, rain covered the Po Valley and northern Italy, providing moisture for reproductive winter grains and emerging summer crops, but likely caused localized flooding. Northern Italy, including the Po Valley benefited from drier weather during the next two weeks. However, during May 19 through June 1, wet weather returned to northern Italy, slowing fieldwork and possibly causing additional flooding. Weekly amounts ranged from 10 to 60 millimeters. From June 2 – 8, somewhat drier weather (less than 25 millimeters) eased wetness across Italy’s Po Valley, allowing for fieldwork to resume. However, the rest of northern Italy received more showers (20-60 millimeters or more), slowing fieldwork.
China: Warm Weather and Recent Rainfall Favor Summer Crop Establishment In the Northeast
April and early May, widespread showers (5 – 25 millimeters per week) and
unseasonably warm temperatures (2 to 3 degrees C above normal) favored summer
crop planting and emergence in Northeast China (Heilongjiang, Jilin, and
Liaoning provinces). Frost was
confined to the northernmost growing areas and posed no problem this year.
During the last two weeks of May, clear and very warm weather raised
evaporation rates and hastened summer crop planting progress.
High temperatures exceeded 30 degrees C on several occasions, and newly
emerged crops may have suffered from stress, especially in western and southern
crop areas. Toward the end of the month, a frontal passage brought beneficial
showers and cooler weather to Heilongjiang, but Jilin and Liaoning remained
mostly dry. Finally, widespread
moderate-to-heavy rain (amounts exceeding 25 millimeters) fell across the
Northeast during the weekend of June 8-9, providing a welcome boost of moisture
for emerging and vegetative summer crops.
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