scholarly journals The aftereffect of winter wheat on pea yield, nitrogen surplus and nitrogen use efficiency in different cropping systems

2020 ◽  
Vol 29 (5) ◽  
Author(s):  
Ivo Voor ◽  
Maarika Alaru ◽  
Viacheslav Eremeev ◽  
Evelin Loit
Keyword(s):  
Winter Wheat ◽  
Nitrogen Use Efficiency ◽  
Cropping Systems ◽  
Field Pea ◽  
Catch Crops ◽  
Nitrogen Surplus ◽  
Mineral N ◽  
Nitrogen Use ◽  
Organic Systems ◽  
Use Efficiency

The present study is part of a framework for researching the use of the field pea in cropping systems in order to improve its economic and environmental output. The specific aim was to investigate the effect of differently fertilised preceding winter wheat on subsequent field pea output in the same crop rotation. The field experiment was conducted in Tartu county, Estonia, in 2012–2017. Seven different cropping systems were investigated: four conventional with different treatments of mineral nitrogen fertilisers and three organic including catch crops and cattle manure treatment. The DM yield of field pea in winter wheat mineral N treatments 50–150 kg N ha-1 was 2699–2852 kg ha-1, which was 33% higher than in the organic systems. There were no significant differences (p < 0.05) in nitrogen use efficiency (NUE) and N surplus between 50–150 kg N ha-1. The first 20 kg ha-1 mineral N with P25 and K95 gave a significantly higher pea yield compared to the treatment without mineral N. The catch crops reduced agronomic NUE and increased N surplus in the organic cropping systems.  

scholarly journals Comparison of early season crop types for wheat production and nitrogen use efficiency in the Jianghan Plain in China

PeerJ ◽  
2021 ◽  
Vol 9 ◽  
pp. e11189
Author(s):  
Rui Yang ◽  
Ke Liu ◽  
Shiying Geng ◽  
Chengxiang Zhang ◽  
Lijun Yin ◽  
...  
Keyword(s):  
Winter Wheat ◽  
Nitrogen Use Efficiency ◽  
Cropping Systems ◽  
Cropping System ◽  
Nitrogen Management ◽  
Nitrogen Accumulation ◽  
Jianghan Plain ◽  
Nitrogen Use ◽  
Wheat Production ◽  
Use Efficiency

The rice-wheat (RW) cropping system is one of the most prevalent double-cropping systems used to farm the Jianghan Plain in China. However, it can lead to low wheat yields and reduced nitrogen use efficiency compared with dryland wheat (DW). We evaluated wheat yield and nitrogen use efficiency for two rotations (summer rice-winter wheat and summer soybean-winter wheat) from 2017 to 2019 and applied the results to improve nitrogen management for planting wheat after rice in the Jianghan Plain. Field experiments were conducted over two years with two nitrogen treatments: traditional nitrogen management (M1: 90 kg N ha−1 was applied at sowing and jointing, respectively ) and optimized nitrogen management (M2: 60 kg N ha−1 was applied at sowing, wintering and jointing, respectively). The highest total wheat production was achieved under M2 for both cropping systems and the two-year average yield was 6,128 kg ha−1 in DW and 6,166 kg ha−1 in RW. The spike number in DW was 15% higher than RW in M1 and 13% higher in M2, but the kernel per spike and 1,000-grain weight was lower than RW. The nitrogen accumulation of DW was 24% higher than RW in M1 and 33% in M2. Compared with RW, DW had higher NO3− content in the soil surface layer (0–20 cm) and a higher root length density (RLD) in the deeper layer (40–60 cm), which may account for the higher N uptake in DW. Our results show that the grain yield of RW was comparable to that of DW by optimum nitrogen management. The rice-wheat cropping system combined with optimum nitrogen management may be of economic and agronomic benefit to the wheatbelt in the Jianghan Plain in China.

Meta-analysis of management-induced changes in nitrogen use efficiency of winter wheat in the North China Plain

2020 ◽  
Vol 251 ◽  
pp. 119632 ◽  
Author(s):  
Bing-Yang Liu ◽  
Xin Zhao ◽  
Shuai-Shuai Li ◽  
Xiong-Zhi Zhang ◽  
Ahmad Latif Virk ◽  
...  
Keyword(s):  
Winter Wheat ◽  
Nitrogen Use Efficiency ◽  
North China Plain ◽  
North China ◽  
Meta Analysis ◽  
Nitrogen Use ◽  
The North ◽  
The North China Plain ◽  
Use Efficiency ◽  
Induced Changes

scholarly journals Effect of subsoiling on tillers, root density and nitrogen use efficiency of winter wheat in loessal soil

2019 ◽  
Vol 65 (No. 9) ◽  
pp. 456-462
Author(s):  
Guohua Lv ◽  
Wei Han ◽  
Hanbo Wang ◽  
Wenbo Bai ◽  
Jiqing Song
Keyword(s):  
Winter Wheat ◽  
Grain Yield ◽  
Nitrogen Use Efficiency ◽  
Triticum Aestivum L ◽  
Root Penetration ◽  
Deep Soil ◽  
Humid Climate ◽  
Nitrogen Use ◽  
Use Efficiency ◽  
Plough Pan

A 2-year field experiment was carried out in loessal soil in a semi-humid climate to research winter wheat (Triticum aestivum L.) growth and nitrogen use efficiency. The result showed that subsoiling increased root penetration and promoted deep soil water absorption, which resulted in high resilience to the adverse dry climate. Soil NO<sub>3</sub><sup>–</sup>-N residue throughout the profile was decreased but increased in rotary tillage. Grain yield was significantly increased by 21.9% and 11.3% in 2016 and 2017, respectively, mainly due to the significantly larger spikes per hectare and grains per spike. Nitrogen use efficiency was significantly improved by 26.7% in 2016 and 13.8% in 2017. For loessal soil in semi-humid climate, breaking the plough pan was necessary, and it was useful for the increase of grain yield and nitrogen use efficiency.

Sign in / Sign up

Export Citation Format

Share Document