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一、研究目的和方法本研究第一次报告中指出:氯化铵能促进水稻氮素营养,其肥效与等氮量的尿素相当或略高,一般不会引起氯害。但是,氯化铵用于旱地,对作物营养,吸收养分的影响,对产量及后作关系都是亟待解决的课题。本试验选用四川两种紫色土,以~(15)N同位素盆栽法,用联碱生产的氯化铵与常用的尿素进行对比试验,探索氯化铵对小麦氮、磷、钾、氯营养的变化规律,为生产、分配和施用氯化铵肥提供依据。供试土壤农化性质见表1。
First, research purposes and methods The first report of this study pointed out: ammonium chloride can promote nitrogen nutrition in rice, its fertilizer efficiency and nitrogen equal or slightly higher urea, generally does not cause chlorine damage. However, the use of ammonium chloride in dry land, its effects on crop nutrition, nutrient uptake, yield and its aftermath are all urgent issues to be solved. In this experiment, two kinds of purple soils in Sichuan Province were selected to study the effects of ammonium chloride on the nitrogen, phosphorus, potassium and chloride nutrition of wheat in the pot experiment with ~ (15) N isotope. Changes in the law for the production, distribution and application of ammonium chloride to provide the basis. Table 1 shows the soil properties of the test.