NITROGEN-FIXATION IN PASTURE .3. GISBORNE PLAINS, MANUTUKE

被引：2

作者：

BROWN, NS

GRAY, MH

SINCLAIR, DP

机构：

[1] Ministry of Agriculture and Fisheries, Gisborne

[2] Ministry of Agriculture and Fisheries, Manutuke Research Station, Gisborne

来源：

NEW ZEALAND JOURNAL OF EXPERIMENTAL AGRICULTURE | 1979年 / 7卷 / 01期

关键词：

D O I：

10.1080/03015521.1979.10426153

中图分类号：

S [农业科学];

学科分类号：

09 ;

摘要：

N fixation rates were low at all times, with very low rates in some months probably because of low rainfall and dry soils. As soil moisture decreased, relatively more fixation occurred below 75 mm. Estimates of annual total N fixed were 92 and 122 kg/ha for 1974–75 and 1975–76 respectively. High levels of available N must be present to support the high levels of pasture production (14.1 t DM/ha and 15.2 t DM/ha for the two trial years). © 1979 Taylor & Francis Group, LLC.

引用

页码：11 / 13

页数：3