4.2 Article

Optimal seeding rate for organic production of field pea in the northern Great Plains

期刊

CANADIAN JOURNAL OF PLANT SCIENCE
卷 89, 期 3, 页码 455-464

出版社

CANADIAN SCIENCE PUBLISHING
DOI: 10.4141/CJPS08113

关键词

Pea (field); organic; seeding rate; weed suppression; profit; soil N

向作者/读者索取更多资源

Baird, J. M., Walley, F. L. and Shirtliffe, S. J. 2009. Optimal seeding rate for organic production of field pea in the northern Great Plains. Can. J. Plant Sci. 89: 455-464. Seeding rates have not been established for organic production of field pea in the northern Great Plains and producers must rely upon a recommended target stand of 88 plants m(-2) for conventional production of this crop. This seeding rate may not be suitable as the two systems differ in the use of inputs and in pest management. The objective of this study was to determine an optimal seeding rate for organic production of field pea considering a number of agronomic factors and profitability. Field sites were established using a randomized complete block design with increasing seeding rates, summerfallow and green manure treatments. Seed yield increased up to 1725 kg ha(-1) with increasing seeding rate. Weed biomass decreased with increasing seeding rate by up to 68%. Post-harvest soil phosphorus levels and soil water storage did not change consistently between treatments. Post-harvest soil inorganic nitrogen (N), however, was higher for the summerfallow and green manure treatments than for the seeding rate treatments. Field pea reached a maximum economic return at a seeding rate of 200 seeds m(-2) and an actual plant density of 120 plants m(-2). Organic farmers should increase the seeding rate of field pea to increase returns and provide better weed Suppression.

作者

我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。

评论

主要评分

4.2
评分不足

次要评分

新颖性
-
重要性
-
科学严谨性
-
评价这篇论文

推荐

暂无数据
暂无数据