宁夏银北地区盐碱地改良与水稻种植技术探讨.pdf

文档介绍：第卷第期湖北农业科学
49 11 Vol. 49
第期
11年月
2010 11 Hubei Agricultural Sciences Nov.,2010
宁夏银北地区盐碱地改良与水稻种植技术探讨
严海霞何文寿
,
宁夏大学农学院银川
( , 750021)
摘要针对宁夏银北地区盐碱地改良利用现状在论述盐碱地改良共性技术措施的基础上重点概述了
: , ,
宁夏银北地区以水稻种植改良盐碱地的技术措施包括水利工程措施农艺措施物理和化学改良措施
, 、、,
探讨了目前盐碱地改良存在的主要问题
。
关键词盐碱地改良措施水稻种植
: ; ;
中图分类号文献标识码文章编号
:+5 :A :0439-8114(2010)11-2693-03
Improvement of Saline-alkali Soil and Rice Cultivation Technology in Northern
Yinchuan of Ningxia
YAN Hai-xia,HE Wen-shou
(College of Agriculture, Ningxia University, Yinchuan 750021,China)
Abstract:Based on the present situation of the progress in the improvement and utilization of saline-alkali soil in the north-
ern Yinchuan of Ningxia, this paper focused on the discussion of improved management techniques of rice cultivation includ-
ing water engineering measures,agronomic measures,and physical and chemical improvement measures after an introduction to
mon technical measures for improving saline-alkali soil. Existing problems in improving saline-alkali soil in Ningxia
were also discussed.
Key words:saline-alkali soil; improvement measure; rice cultivation
盐碱土是在一定的自然或者人为条件下如气和据统计分析平罗县耕地表土平均
% %。,
候干旱蒸发量强等情况下形成的一类特殊土壤含盐量最高达到其次是大武口区平均
、。, g / kg; ,
其形成的实质主要是各种易溶性盐类在地面作水含盐量为惠农区耕地表土平均含盐量为
g / kg;
平方向与垂直方向的重新分配致使盐分在集盐地其余各县市耕地表土平均含盐量均大于
, g / kg,
区的土壤表层逐渐积聚起来从盐碱土演化过程原因主