论文部分内容阅读
通过５年多点氮磷肥料田间试验，对内蒙古自治区干旱、半干旱区旱地油用亚麻合理施肥进行了研究。提出了根据基础产量进行土壤肥力分级的氮磷肥料效应回归模式及最佳施肥量。在此基础上进一步探讨了不同年度降水量与肥料效应的关系，结果表明，年度降水量是影响产量和施肥肥效的主要因素，是确定旱地施肥配方的重要依据。为此，提出了以基础产量划分土壤肥力等级，同时考虑年度降水量的旱地油用亚麻氮磷肥料推荐施肥量，为无灌溉旱作地区油用亚麻合理施肥提供了科学依据。
Through field experiment of nitrogen and phosphorus fertilizer for more than five years, the reasonable fertilization of oil for flax in Inner Mongolia Autonomous Region of arid and semiarid areas was studied. Proposed according to the basic yield of soil fertility classification of nitrogen and phosphorus fertilizer effect regression model and the optimal amount of fertilizer. On this basis, the relationship between precipitation and fertilizer effect in different years is further discussed. The results show that annual precipitation is the main factor affecting yield and fertilizer efficiency, and is an important basis for determining the formula of fertilization in dry land. To this end, the paper proposes the recommended fertilization rate of nitrogenous and phosphate fertilizers for dryland oil based on the basal yield division of soil fertility levels, taking into account the annual precipitation, which provides a scientific basis for the rational fertilization of oil-use flax in areas without irrigated dry land.