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我场一九七九年玉米播种面积3657.6亩,缺锌面积占5％,减产约3万斤,一九八○年玉米播种面积5597亩,缺锌面积占10％,减产约11万斤。玉米缺锌最严重的四队,播种面积586亩,缺锌面积占66％,平均单产563.1斤,比全场平均水平降低178.1斤(低24.0％)。玉米属于对锌敏感的指示性作物,我们观察玉米缺锌的主要症状是:刚出土的幼苗
In our field, there were 3657.6 mu of sown corn in maize in1979, 5% of zinc deficiency area, a decrease of about 30,000 kg of corn, 5597 acres of maize acreage in 1980, 10% of zinc deficiency area and a reduction of output of 110,000 kg. Zinc deficiency of corn the most serious four teams, 586 acres of sown area, zinc deficiency accounted for 66% of the area, with an average yield of 563.1 kg, lower than the audience average of 178.1 kg (24.0% lower). Corn is an indicator of zinc-sensitive crops, we observe the main symptoms of zinc deficiency in maize are: newly excavated seedlings