Optimizing relative seed frequency of intercropped pea and spring barley

摘要

In order to optimize relative seed frequency of intercropped pea (Pisum sativum L.) and spring barley (Hordeum vulgare L.), to achieve maximum relative yields and to gain a better understanding of interactions between yield formation and accumulation of nitrogen (N) and sulphur (S) under field conditions, field trials were conducted at several sites in Germany on long-term (> 10 years) organically cultivated arable land in two years. These field trials investigated the effects of intercropping and the calculation of relative seed frequency in pea-barley mixtures to achieve maximum relative seed and shoot yields, as well as N and S accumulation.