English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

Optimization of nitrogen (N) application rate and seeding rates to coordinate the balanced development of crop growth and yield is important for the efficient use of resources and the cultivation of high-quality and high-yield crops. In this study, four levels of N application rates (N0 0 kg ha, N1 150 kg ha, N2 190 kg ha, and N3 240 kg ha) and three direct seeding rates (D1 22.22 kg ha, D2 25.00 kg ha, and D3 28.57 kg ha) were used to explore their effects on the yield and growth characteristics of direct seeded rice (Oryza sativa L.) in China. Canonical correlation analysis showed that the soil–plant analyses development (SPAD) value, leaf area index (LAI), and plant height were closely related to grain yield, spikelet number per panicle, and seed setting rate, and the increase in the SPAD value may have caused the increase in the number of effective panicles and the decrease in 1000-grain weight. Gray correlation analysis showed that plant height and leaf area index were essential indices that affected grain yield. For increased grain yield, medium N and medium density (N2D2) were suitable for hybrid rice, whereas high N and high density (N3D3) were suitable for conventional rice. Plant height and leaf area index may be used as important growth indices to control yield.

applied ecology and environmental research

THE EFFECTS OF DIFFERENT NITROGEN APPLICATION AND SEEDING RATES ON THE YIELD AND GROWTH TRAITS OF DIRECT SEEDED RICE (ORYZA SATIVA L.) USING CORRELATION ANALYSIS