Effects of a one ‐time application of controlled‐release nitrogen fertilizer on quality and yield of rice

This study find a suitable or optimal CRNF strategies to achieve improvements in both yield and quality of rice. Results from this study provides empirically supported recommendations for improving rice yield and quality through N fertilizer management. AbstractLimited information is available on the influence of a one-time application of controlled-release nitrogen fertilizer (CRNF) in improving both yield and quality of rice. In this study, two rice cultivars, Jia58 (J58) and Jia67(J67), were used to study the effects of six combinations of short-acting (40 –60-day release periods) and a long-acting (80–120-day release periods) CRNF. The six combinations were as follows: A1, 40-day + 80-day CRNFs; A2, 40-day + 100-day CRNFs; A3, 40-day + 120-day CRNFs; B1, 60-day + 80-day CRNFs; B2, 60-day + 100-day CRNFs; and B3, 60-day + 120-day CRNFs. Each combi nation of CRNFs was mixed with common urea (CU) to apply as basal fertilizer to rice crops to assess grain yield and quality. In addition, CU without CRNFs was applied as the control (CK). The results showed that the release of nitrogen from A2 and B2 were most matched with nitrogen accumulation by rice resulting in a higher yield (B2 treatment) or the same yield (A2 treatment) as CK. The average yield of 2 years of J58 in B2 was 7.38% higher than that of the CK. Similarly, the average yield of J67 in B2 was 6.46% higher than CK for both years. Milling quality, appearance quality, milled ric e starch content, and taste valu...

Source: Food and Energy Security - October 19, 2022 Category: Food Science Authors: Xu Dong, Zhu Ying, Zhu Haibin, Hu Qun, Liu Guodong, Wei Haiyan, Zhang Hongcheng Tags: ORIGINAL ARTICLE Source Type: research