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水稻土缺锌研究,近十多年国外如印度、菲律宾,国内如山东、安徽都先后有报导,我所沔阳彭场基点及江北农场、监利等地,1976年以来多点多次试验证明,石灰性冲积土(湖泥土)早稻施锌有较好增产效果。冬作物油菜、大麦、小麦、蚕豆都有增产趋势,1978年沔阳、监利、江北农场早稻等作物施锌面积达22万余亩,1979年试验示范应用已扩大到宜昌、天门、襄阳、洪湖等地。与此同时,我们用砂培、水培、土培和同位素示踪法及定点定位等方法,配合田间试验进行研究,现将试验结果总结如下。
Paddy field zinc deficiency, nearly a decade of foreign countries such as India, the Philippines, China, such as Shandong, Anhui have reported that my Yang Peng field base and Jiangbei farm, Jianli and other places, since 1976 more than a few times to prove , Calcareous alluvial soil (lake soil) early rice zinc has a better yield. Winter crops rapeseed, barley, wheat and broad bean have the trend to increase production. In 1978, the area of zinc consumption in Xingyang, Jianli and Jiangbei farms amounted to more than 220,000 mu. In 1979, pilot demonstration and application had been extended to Yichang, Tianmen, Xiangyang and Honghu Other places. At the same time, we use sand culture, hydroponics, soil culture and isotope tracing methods and fixed-point positioning and other methods, with field trials to study the test results are summarized below.