盐土条件下不同栽培措施对4种禾本科饲草阳离子分布的影响

doi:10.11733/j.issn.1007-0435.2015.01.017

草地学报 ›› 2015, Vol. 23 ›› Issue (1): 107-113.DOI: 10.11733/j.issn.1007-0435.2015.01.017

盐土条件下不同栽培措施对4种禾本科饲草阳离子分布的影响

张文洁, 丁成龙, 程云辉, 许能祥

江苏省农业科学院畜牧研究所, 江苏南京 210014

收稿日期:2014-02-14 修回日期:2014-05-14 出版日期:2015-02-15 发布日期:2015-01-31
通讯作者: 丁成龙
作者简介:张文洁(1986-),女,山东菏泽人,硕士,主要从事饲草调制与加工,E-mail:jiexiu1228@163.com
基金资助:
"十二五"国家科技支撑计划课题(2011BAD17B02)资助

Effects of Cultivation Measures on the Cationic Content and Distribution of Forage in Saline Soil

ZHANG Wen-jie, DING Cheng-long, CHENG Yun-hui, XV Neng-xiang

Institute of Animal Science, Jiangsu Academy of Agricultural Sciences, Nanjing, Jiangsu Province 210014, China

Received:2014-02-14 Revised:2014-05-14 Online:2015-02-15 Published:2015-01-31

摘要/Abstract

摘要：

为探讨盐土条件下牧草栽培技术,以4种禾本科牧草为材料,研究了3种不同栽培措施对饲草体内Na⁺, K⁺, Ca²⁺, Mg²⁺含量和分布的影响.结果表明:同一品种不同栽培措施处理下植株体内各离子含量差异显著(P < 0.05),覆秸秆与添加保水剂处理饲草各部分Na⁺含量及Na⁺/Ca²⁺显著低于对照;K⁺, Ca²⁺, Mg²⁺含量和K⁺/Na⁺显著高于对照.离子运输选择性系数S_K⁺/Na⁺均以覆秸秆处理与添加保水剂处理显著高于对照(P < 0.05).相同栽培措施下甜高粱(Sorghum saccharatum)与高丹草(Sorghum bicolor×sorghum Sudanese)体内的K⁺/Na⁺在茎、叶中的分布显著高于青贮玉米(Zea mays)和墨西哥玉米(Euchlaena mexicana).在盐土条件下,覆秸秆和添加保水剂处理可使饲草地上部分的Na⁺含量降低,K⁺含量升高,维持饲草体内较高的K⁺/Na⁺和S_K⁺/Na⁺值,提高饲草的耐盐性;不同饲草品种之间耐盐性差异较大.

关键词: 盐土, 栽培措施, 阳离子

Abstract:

The contents of Na⁺, K⁺, Ca²⁺, Mg²⁺ and the four cationic accumulations in different parts of plant were measured in order to explore a suitable culture technique for forages in saline soil. The results showed that the contents of Na⁺, K⁺, Ca²⁺ and Mg²⁺ of different parts of grasses in the same variety were significant difference from different cultivation measures (P<0.05). The contents of Na⁺ and Na⁺/Ca²⁺ in tested materials under covering straw and the addition of water retaining agent treatments were significantly lower than control, but the contents of K⁺, Ca²⁺, Mg²⁺, K⁺/Na⁺ and S_K⁺/Na⁺ (stem/root) were higher than that of control. Among different varieties, the K⁺/Na⁺ ratios in the leaves and stems of Sorghum saccharatum and sudangrass were higher than that of silage maize and Zea Mexicana. In a word, the above-ground part of forage contained less Na⁺, higher K⁺ contents and higher K⁺/Na⁺ under the cultivation measures of straw mulching and addition of water retaining agent, but the degrees of improvement differed from different varieties.

Key words: Saline soil, Cultivation measures, Cationic

中图分类号:

S318

张文洁, 丁成龙, 程云辉, 许能祥. 盐土条件下不同栽培措施对4种禾本科饲草阳离子分布的影响[J]. 草地学报, 2015, 23(1): 107-113.

ZHANG Wen-jie, DING Cheng-long, CHENG Yun-hui, XV Neng-xiang. Effects of Cultivation Measures on the Cationic Content and Distribution of Forage in Saline Soil[J]. Acta Agrestia Sinica, 2015, 23(1): 107-113.

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盐土条件下不同栽培措施对4种禾本科饲草阳离子分布的影响

Effects of Cultivation Measures on the Cationic Content and Distribution of Forage in Saline Soil

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