干旱区生态环境知识资源中心(Arid): 滴灌专用肥中磷素在3种土壤-棉花系统中的运移

Arid

	滴灌专用肥中磷素在3种土壤-棉花系统中的运移
其他题名	Phosphorus Migration of Drip-irrigation Special Fertilizer in Three Types of Soil-cotton Systems
	李晓兰; 尹飞虎; 池静波; 相吉山; 宋晓红
来源期刊	西北农业学报
ISSN	1004-1389
出版年	2013
卷号	22 期号:1 页码:73-80
中文摘要	基于同位素示踪技术,将~(32)P标记的滴灌专用肥滴入3种不同类型的土壤,应用储磷屏扫描影像技术研究磷素在土壤中的运移情况,同时应用超低本底闪烁仪测定土壤和棉株~(32)P放射性活度。结果表明,各处理磷素在3种土壤中的运移距离均在10cm以内。灰漠土+滴灌专用肥处理的运移距离高于其他处理,并且施用滴灌专用肥后的运移距离为灰漠土(8.49cm)>草甸土(5.48cm)>红壤(3.65cm)。滴灌专用肥在不同土壤中的运移距离存在显著差异;棉株对磷素的吸收情况在不同土壤中也存在显著差异;棉株和土壤速效磷中~(32)P放射性活度占总标记量的比例在各处理间存在显著差异。从运移距离、棉株生长等方面看,滴灌专用肥并不适合在红壤中施用,在新疆两种石灰性土壤中的施用也有差异,灰漠土中植物吸收的~(32)P放射性活度明显高于草甸土,而草甸土速效磷中~(32)P放射性活度又明显高于灰漠土,两种土壤植物吸收的~(32)P放射性活度比例与土壤速效磷中残留的~(32)P放射性活度比例之和相差不大。从植物对磷素的吸收而言,灰漠土中施用滴灌专用肥明显好于草甸土,这可能是由于草甸土本身的养分指标高于灰漠土,施用同样量的滴灌专用肥可能对作物的吸收以及土壤养分的转化产生影响,所以建议在新疆各类型土壤中施用滴灌专用肥前先测定土壤的基本理化指标,再根据实际情况施用各种肥料。
英文摘要	Based on the isotope tracer technique, ~(32)P-labeled drip-irrigation special fertilizer was dripped into three different soils. We studied the migration of phosphorus in soil using storage phosphor system, and determined the ~(32)P activity in soils and plants using liquid scintillation counter. The results showed that the migration distance of phosphorus in three soils was within 10cm. The decreasing order of the migration distance of the special fertilizer was grey desert soil (8.49 cm) > meadow soil (5.48 cm)> red soil (3.65 cm). There were significant differences in migration distance of drip-irrigation special fertilizer in different soils. The phosphorus absorption of cotton also significantly varied in different soils. The percentage of ~(32)P activity in cotton and soil available phosphorus had significant difference in different treatments. In this study, special fertilizer was not suitable for application in red soil according to the migration distance, cotton growth and other aspects, but special fertilizer showed differences between the two kinds of calcareous soils. The activity of ~(32)P-labeled-phosphorus absorbed by cotton in grey desert soil was higher than that in meadow soil, but the ~(32)P activity of available phosphorus in meadow soil was higher than that in grey desert soil. The sum of ~(32)P activity of cotton and soil available phosphorus in two calcareous soils had no difference. For phosphorus absorption of cotton, the application of drip-irrigation special fertilizer was better in grey desert soil than in meadow soil, which might be due to the higher nutrient indexes of meadow soil. Using the same amount of special fertilizer in meadow soil might affect plant absorption and the transformation of soil nutrient. It was recommended that the application of drip-irrigation special fertilizer in various soil types of Xinjiang should be conducted based on soil physicochemical indexes and actual situation.
中文关键词	~(32)P放射性活度 ; 滴灌专用肥 ; 土壤类型 ; 运移规律
英文关键词	~(32)P activity Drip-irrigation special fertilizer Soil types Migration law
语种	中文
国家	中国
收录类别	CSCD
WOS类目	AGRONOMY
WOS研究方向	Agriculture
CSCD记录号	CSCD:4766921
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/230301
作者单位	新疆农垦科学院, 石河子, 新疆 832000, 中国
推荐引用方式 GB/T 7714	李晓兰,尹飞虎,池静波,等. 滴灌专用肥中磷素在3种土壤-棉花系统中的运移[J],2013,22(1):73-80.
APA	李晓兰,尹飞虎,池静波,相吉山,&宋晓红.(2013).滴灌专用肥中磷素在3种土壤-棉花系统中的运移.西北农业学报,22(1),73-80.
MLA	李晓兰,et al."滴灌专用肥中磷素在3种土壤-棉花系统中的运移".西北农业学报 22.1(2013):73-80.