Nitrogen balance in wet seeded rice based cropping system as influenced by integrated nitrogen management practices

被引：0

作者：

Rajarathinam, P. ^{[1
]}

Martin, G. James ^{[1
]}

Jeyasrinivas, R. ^{[1
]}

Balaji, T. ^{[1
]}

机构：

[1] Tamil Nadu Agr Univ, Dept Agron, Coimbatore 641003, Tamil Nadu, India

来源：

RESEARCH ON CROPS | 2011年 / 12卷 / 01期

关键词：

Cropping system; nitrogen balance; wet seeded rice;

D O I：

暂无

中图分类号：

S3 [农学（农艺学）];

学科分类号：

0901 ;

摘要：

A field experiment was conducted during kharif, rabi and summer seasons of 2003-04 and 2004-05 at Tamil Nadu Agricultural University, Coimbatore to study the nitrogen balance in wet seeded rice based cropping system as influenced by integrated nitrogen management practices. The field experiment was laid out in a split plot design with three replications. Organic N sources viz., dual cropping of Azolla, Sesbania rostrata individually and in combination were compared in main plot treatments. Inorganic N levels viz., 0, 50, 75 and 100% recommended N were compared in the sub-plots. Greengram was raised as summer residual crop. The result of the study revealed that the rice intercropped with Sesbania rostrata and dual cropped with Azolla and application of 100% recommended N in both the kharif and rabi rice followed by summer residual greengram recorded the high positive N balance in the wet seeded rice-rice-greengram cropping system in North-Western Agroclimatic Zone of Tamil Nadu.

引用

页码：8 / 12

页数：5