Grain legume production data for soybean, lupins and faba bean, the effect of cultivars and irrigation and impacts on the following winter wheat

This data set reports measurements and observations from a grain legume cropping system experiment (2017-2021) investigating the effects of cultivars and irrigation on yield of soybean, lupins and faba bean, and rotational effects on a subsequent winter wheat (2018-2020). The objective was to identify grain legume species and cultivars for designing novel cropping systems in north-eastern Germany. The data supports agronomic analyses, as well as dynamic simulation modelling and includes details on crop growth, soil characteristics and weather. In the first part of the experiment different species and cultivars and the effect of irrigation were compared in a split block design with four replicates and the factors species/cultivar and irrigation during five consecutive years (2017-2021). The treatments included eight to 18 species/cultivars depending on the year with soybean, narrow-leafed lupin, white lupin, yellow lupin, faba bean and chickpea. Buckwheat was cultivated as a reference crop. Soybean and lupin seeds were inoculated with HISTICK® soybean/lupin (BASF, Germany). No fertilizers and conventional crop protection was applied. All lupin species were treated with a natural insecticide against the Sitona weevils. For technical reasons, treatment with this insecticide of field bean, soybean and buckwheat was also unavoidable in some years. Measurements included grain yield, one thousand seed weigh, macro nutrients (N, P, K) in the grain, and additional agronomic observations including number of plants and plant phenology. Irrigation water was applied with a sprinkler system using the Web-BEREST model (Mirschel et al., 2014) to determine the amounts and timing (data on the amounts and dates are provided). In the second part of the experiment, the pre-crop effect of soybean narrow-leafed lupin, white lupin and buckwheat was tested on the grain yield and nutrient content in the following winter wheat crop and on the nitrogen dynamics in the soil. Before winter (November/December) and in the subsequent spring (February/March), mineral nitrogen was measured in the soil at three depths (0-30 cm, 30-60 cm, and 60-90 cm) after the different pre-crops. Winter wheat was established following the different pre-crops with 4 replicates during three consecutive years (2018-2020) with conventional fertilization and crop protection. Table V421_SOIL_TEXTURE: Soil description of the respective winter wheat fields in 2018-2020

Related datasets are listed in the metadata element 'Related Identifier'.
Dataset version 1.0