+ Site Statistics
+ Search Articles
+ PDF Full Text Service
How our service works
Request PDF Full Text
+ Follow Us
Follow on Facebook
Follow on Twitter
Follow on LinkedIn
+ Subscribe to Site Feeds
Most Shared
PDF Full Text
+ Translate
+ Recently Requested

Optimizing plant density and nitrogen application to manipulate tiller growth and increase grain yield and nitrogen-use efficiency in winter wheat



Optimizing plant density and nitrogen application to manipulate tiller growth and increase grain yield and nitrogen-use efficiency in winter wheat



Peerj 7: E6484



The growth of wheat tillers and plant nitrogen-use efficiency (NUE) will gradually deteriorate in response to high plant density and over-application of N. Therefore, in this study, a 2-year field study was conducted with three levels of plant densities (75 ×104plants ha-1, D1; 300 ×104plants ha-1, D2; 525 ×104plants ha-1, D3) and three levels of N application rates (120 kg N ha-1, N1; 240 kg N ha-1, N2; 360 kg N ha-1, N3) to determine how to optimize plant density and N application to regulate tiller growth and to assess the contribution of such measures to enhancing grain yield (GY) and NUE. The results indicated that an increase in plant density significantly increased the number of superior tillers and the number of spikes per m2(SN), resulting in a higher GY and higher partial factor productivity of applied N (PFPN). However, there was no significant difference in GY and PFPN between plant densities D2 and D3. Increasing the N application rate significantly increased the vascular bundle number (NVB) and area (AVB), however, excess N application (N3) did not significantly improve these parameters. N application significantly increased GY, whereas there was a significant decrease in PFPN in response to an increase in N application rate. The two years results suggested that increasing the plant density (from 75 ×104plants ha-1to 336 ×104plants ha-1) in conjunction with the application of 290 kg N ha-1N will maximize GY, and also increase PFPN(39.7 kg kg-1), compared with the application of 360 kg N ha-1N. Therefore, an appropriate combination of increased planting density with reduced N application could regulate tiller number and favor the superior tiller group, to produce wheat populations with enhanced yield and NUE.

Please choose payment method:






(PDF emailed within 1 workday: $29.90)

Accession: 066552131

Download citation: RISBibTeXText

PMID: 30828492


Related references

Effects of postponed basal nitrogen application with reduced nitrogen rate on grain yield and nitrogen use efficiency of south winter wheat. Ying Yong Sheng Tai Xue Bao 27(12): 3953-3960, 2016

Optimizing nitrogen application rate and plant density for improving cotton yield and nitrogen use efficiency in the North China Plain. Plos one 12(10): E0185550, 2017

Effect of nitrogen fertilizer application timing on nitrogen use efficiency and grain yield of winter wheat in Ireland. Irish Journal of Agricultural and Food Research 55(1): 63-73, 2016

Growth and grain yield of wheat in relation to differences in soil groups: III. Effects of the additional application of nitrogen or phosphoric-acid on the tiller growth and grain yield. Japanese Journal of Crop Science 61(4): 610-615, 1992

Effects of watering and nitrogen fertilization on the growth, grain yield, and water- and nitrogen use efficiency of winter wheat. Ying Yong Sheng Tai Xue Bao 24(5): 1367-1373, 2013

Influence of nitrogen uptake and nitrogen partitioning efficiency on grain yield and grain protein concentration of 12 winter wheat genotypes triticum aestivum. Zeitschrift fuer Pflanzenzuechtung 86(1): 41-49, 1981

Influence of nitrogen uptake and nitrogen partitioning efficiency on grain yield and grain protein concentration of twelve winter wheat genotypes (Triticum aestivum L.). Zeitschrift fur Pflanzenzuchtung 86(1): 41-49, 1981

Effects of straw mulching plus nitrogen fertilizer on nitrogen efficiency and grain yield in winter wheat. 2008

Effects of nitrogen fertilizer application on the yield, water use efficiency and nitrogen use efficiency of winter wheat under limited irrigation in North China Plain. Journal Of Triticeae Crops: 6, 1016-1020, 2008

Effects of nitrogen application in different wheat growth stages on the floret development and grain yield of winter wheat. Agricultural Sciences in China 1(10): 1156-1161, 2002

Effect of plant density and nitrogen fertilization in winter wheat triticum aestivum l. 1. production pattern and grain yield. Netherlands Journal of Agricultural Science 35(2): 137-154, 1987

Remote sensing of winter wheat tiller density for early nitrogen application decisions. Agronomy Journal 93(4): 783-789, 2001

Effect of reserves in the aboveground parts of the plant and sugar and nitrogen application on grain yield in winter wheat. Rostlinna Vyroba 35(5): 449-455, 1989

Interaction between plant density and nitrogen management strategy in improving maize grain yield and nitrogen use efficiency on the North China Plain. Journal of Agricultural Science 154(06): 978-988, 2016

Nitrogen accumulation and grain yield of rice under different plant density and nitrogen application rate. Thai Journal of Agricultural Science 33(1/2): 21-28, 2000