Do farmers in Germany exploit the potential yield and nitrogen benefits from preceding oilseed rape in winter wheat cultivation?

Weiser, Christian; Fuß, Roland; Kage, Henning; Flessa, Heinz

doi:10.1080/03650340.2017.1326031

Cited by 29 publications

(16 citation statements)

References 27 publications

(26 reference statements)

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“…In the climatic conditions of this study, higher soil N min contents were more likely when wheat followed oilseed rape than maize. In addition, oilseed rape, with deep and dense root systems [75], leaves a good soil structure, an ideal condition for the following crop as shown in experiments in Germany [76]. Thus, the amount and C/N ratio of the residues of the preceding crop [77] are critical factors to consider while designing the N fertilization management of a CA system.…”

Section: Discussionmentioning

confidence: 99%

Nitrogen Rate Increase Not Required for No-Till Wheat in Cool and Humid Conditions

Herrera

Noulas²,

Stamp

et al. 2020

Agronomy

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An increased nitrogen (N) supply was proposed to avoid grain yield (GY) reductions and successfully implement conservation agriculture (CA). We investigated interactions effects of tillage system and N supply on winter wheat (Triticum aestivum L.) at two sites in the Swiss midlands with no (0 kg N ha−1) and high (150–160 kg N ha−1) N supply using 15N-labelled ammonium nitrate in selected treatments. Wheat’s GY, yield components, N related traits and soil mineral N content (Nmin) under conventional tillage (CT), minimum tillage (MT), and no-tillage (NT) were studied following two preceding crops: oilseed rape (Brassica napus L.) and maize (Zea mays L.). Wheat after oilseed rape had significantly higher GY and biomass than after maize while a yield decrease under NT compared with CT and MT was observed regardless of N supply level. Differences in soil Nmin among tillage systems were seldom found and were inconsistent. No differences in 15N fertilizer recovery were found between NT and CT while residual Nmin after harvest was lower under NT than CT or MT. In conclusion, we did not found consistent reductions in soil N availability and N uptake under NT that would justify an increased N supply for wheat under CA.

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Section: Discussionmentioning

confidence: 99%

Nitrogen Rate Increase Not Required for No-Till Wheat in Cool and Humid Conditions

Herrera

Noulas²,

Stamp

et al. 2020

Agronomy

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“…Though highly dependent on crops, their sequencing patterns and growing conditions (Sieling and Christen, 2015), frequently reported benefits of diversified crop rotations include reduced nitrogen (N) application rates (Jensen et al, 2010; St. Luce et al, 2015; Xing et al, 2017; Weiser et al, 2018), as well as improved soil structure, soil carbon, pH and soil functionality, e.g., through changes in soil microbial communities (Robson et al, 2002; Persson et al, 2008; Wang et al, 2012; Aschi et al, 2017; Prade et al, 2017). Furthermore the benefits also include suppressed disease, pest and weed infestation and thereby less intensive pesticide use (Bankina et al, 2013; Andert et al, 2016), in addition to providing higher yields of subsequent crops (Weiser et al, 2018), though not necessarily improved yield stability (St-Martin et al, 2017).…”

Section: Introductionmentioning

confidence: 99%

“…Luce et al, 2015; Xing et al, 2017; Weiser et al, 2018), as well as improved soil structure, soil carbon, pH and soil functionality, e.g., through changes in soil microbial communities (Robson et al, 2002; Persson et al, 2008; Wang et al, 2012; Aschi et al, 2017; Prade et al, 2017). Furthermore the benefits also include suppressed disease, pest and weed infestation and thereby less intensive pesticide use (Bankina et al, 2013; Andert et al, 2016), in addition to providing higher yields of subsequent crops (Weiser et al, 2018), though not necessarily improved yield stability (St-Martin et al, 2017). According to a retrospective analysis, the major productivity shifts in dry-land cereal production regions of Australia coincided with changes in crop management including crop sequencing patterns (Kirkegaard and Hunt, 2010).…”

Section: Introductionmentioning

confidence: 99%

“…The availability of N for the crop preceded by legumes or rapeseed and thereby, the capacity to replace N fertilizers with residual N (Kirkegaard et al, 1997; St. Luce et al, 2016; Weiser et al, 2018) calls for strategies to safeguard the environment from possible additional N loads in subsequent years (Jensen et al, 2010; Grant et al, 2016; Plaza-Bonilla et al, 2017). Also, the long-term impacts of diverse crop sequencing patterns should be acknowledged (Robson et al, 2002), although these may be harder to quantify as such data is available only from long-term experiments.…”

Section: Introductionmentioning

confidence: 99%

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Pre-crop Values From Satellite Images for Various Previous and Subsequent Crop Combinations

et al. 2019

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Monocultural land use challenges sustainability of agriculture. Pre-crop value indicates the benefits of a previous crop for a subsequent crop in crop sequencing and facilitates diversification of agricultural systems. Traditional field experiments are resource intensive and evaluate pre-crop values only for a limited number of previous and subsequent crops. We developed a dynamic method based on Sentinel-2 derived Normalized Difference Vegetation Index (NDVI) values to estimate pre-crop values on a field parcel scale. The NDVI-values were compared to the region specific 90th percentile of each crop and year and thereby, an NDVI-gap was determined. The NDVI-gaps for each subsequent crop in the case of monocultural crop sequencing were compared to that for other previous crops in rotation and thereby, pre-crop values for a high number of previous and subsequent crop combinations were estimated. The pre-crop values ranged from +16% to -16%. Especially grain legumes and rapeseed were valuable as pre-crops, which is well in line with results from field experiments. Such data on pre-crop values can be updated and expanded every year. For the first time, a high number of previous and following crop combinations, originating from farmer’s fields, is available to support diversification of currently monocultural crop sequencing patterns in agriculture.

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“…This leads to a reduction in particular yield elements as a result of: nutrient exhaustion, increase in infestation, intensification of pest and fungus infection, changes in soil microorganism activity in the soil structure and release of phytotoxic substances from the roots and harvest residue [31,32]. Rapeseed and legumes are considered to be good pre-crops for winter wheat [33,34]. The yield of wheat grown after those species reaches 92% of the value reported for the best pre-crop [32].…”

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confidence: 99%

Effect of Habitat and Foliar Fertilization with K, Zn and Mn on Winter Wheat Grain and Baking Qualities

et al. 2020

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Cereal monoculture causes a series of unfavorable changes in field habitat, for example a decrease in technological quality and yield. This system can lead to a shortage of microelements in the diet of poor communities. Moreover, breeding of highly productive plants caused a significant "dilution effect" of the necessary nutrients, such as Zn and Fe. The aim of this work was to determine the effect of two strategies: crop rotation (after rapeseed and many years of monoculture of Galega orientalis Lam.) and foliar fertilization with microelements on the yield, yield elements, physical quality, and farinograph characteristics of winter wheat grain and flour. Results showed that pre-crop preparation and cultivation year have the highest effect on yield, yield components, and qualitative and farinographic characteristics of winter wheat. Foliar additional feeding favorably affected the yield and its components, although the particular fertilization treatment did not significantly increase the yield. Grain quality, its physical characteristics and the rheological parameters of flour were strongly modified by habitat conditions, including weather conditions. Dough obtained from wheat grown after galega showed significantly higher water absorption and prolonged consistency.Zn content. Its consumption in rural areas will probably increase to over 70%, which could lead to an increase in the micronutrient shortage in communities with poor resources [10]. Cereals provide up to 52% of the daily requirement for Zn. Biofortification is a process of plant growth that generates high microelement content through traditional breeding or modern biotechnology. It has been stated that Zn concentration in intensively cultivated soils oscillates between 20 and 35 mg kg −1 , and may be significantly below that level when wheat is grown in soils poor in zinc [11,12]. In the case of wheat grain, Zn bioavailability reaches about 25% of that amount, which is related to the presence of anti-nutritional factors, such as phitynians and the lack of promoter substances in the grain [13].Approximately 30% of the population in developing countries, and about 10% of Americans and Canadians, suffer from Zn shortages [14]. It is estimated that 17.3% of the entire world population is at risk of inadequate Zn consumption, and Zn shortage leads to an estimated annual death rate of 433,000 children under the age of 5 [15]. It was recently found that in Great Britain, Zn consumption in about a quarter of teenagers is lower than the Lower Reference Nutrient Intake (LRNI).There are numerous strategies for improving the intake of micronutrients with plant-based diets and bolstering the condition of plant nourishment in order for microelements to reach food, such as rice diversification, mineral supplementation, enrichment after harvest and bio-diversification [16]. Plant breeding (for example genetic biofortification) and Zn fertilizer application (for example agronomic biofortification) are two important agricultural tools for improving Zn concentration in ...

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Do farmers in Germany exploit the potential yield and nitrogen benefits from preceding oilseed rape in winter wheat cultivation?

Cited by 29 publications

References 27 publications

Nitrogen Rate Increase Not Required for No-Till Wheat in Cool and Humid Conditions

Nitrogen Rate Increase Not Required for No-Till Wheat in Cool and Humid Conditions

Pre-crop Values From Satellite Images for Various Previous and Subsequent Crop Combinations

Effect of Habitat and Foliar Fertilization with K, Zn and Mn on Winter Wheat Grain and Baking Qualities

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