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一 引言 白浆土是我国东北三江平原地区耕地主要土壤之一,其面积近一千万亩,约占当前耕地面积的60％左右。多年来,大豆在该土地上产量偏低且很不稳定,一般平均产量只在140～150斤/亩,峰值200斤/亩左右,低值100斤/亩左右。 随着生产的发展和科学技术的应用,农业科技工作者一直很重视在白浆土上创高产的开发并对大豆的栽培模式进行了大量的研究工作,提出各种不同的大豆丰产栽培措施。我校农科所在总结各种大豆栽培措施的基础上,针对白浆土土壤特定的物化性能及供作物的肥、
I. INTRODUCTION Albite is one of the main cultivated soils in the Sanjiang Plain in northeast China. Its area is nearly 10 million mu, accounting for about 60% of the current cultivated area. Over the years, soybean production in the land is low and very unstable, the average average yield of only 140 to 150 kg / mu, peak 200 kg / mu or so, low value of 100 kg / mu or so. With the development of production and the application of science and technology, agricultural scientists have always attached great importance to the development of high yield on white soil and conducted a great deal of research work on the cultivation mode of soybean, and put forward various cultivation measures of high yield of soybean. On the basis of summing up all kinds of soybean cultivation measures in our school of agriculture, aiming at the specific physicochemical properties of soil and the fertilizer,