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我县在稻田上大量推广使用硝銨是从1964年开始的,两年来每年用量都在200万斤左右。最初农民不习慣使用,由于不断加强了宣传和技术指导,現已在全县范围內得到广泛的推广,茲将初步結果簡介如下:一、硝铵在水稻田中的增产效果两年来的实践証明,在水稻田中施用硝銨,只要用法得当,对水稻有显著的增产效果。例如在不同土质上亩施硝銨20~40斤,亩产可达660~935斤,增产5.4~23.0%,每斤硝銨能增产稻谷2.5~6厅(表1)。在
A large number of popularization and utilization of ammonium nitrate in paddy fields in our county started in 1964, and the annual consumption in the past two years is about 2 million kilos. Initially, peasants were not accustomed to using it. Due to the continuous promotion of publicity and technical guidance, they have been widely popularized throughout the county. The preliminary results are summarized as follows: I. Production of ammonium nitrate in paddy fields has been proven for two years , The application of ammonium nitrate in paddy fields, as long as properly used, has a significant yield increase effect on rice. For example, on different types of soil, 20-40 kg of ammonium nitrate are applied per mu, up to 660-935 kg per mu, 5.4-23.0% increase, and ammonium nitrate per kilogram can increase rice production by 2.5-6 halls (Table 1). in