Urea deep placement in combination with Azolla for reducing nitrogen loss and improving fertilizer nitrogen recovery in rice field

2018 ◽  
Vol 218 ◽  
pp. 141-149 ◽  
Author(s):  
Yuanlin Yao ◽  
Min Zhang ◽  
Yuhua Tian ◽  
Miao Zhao ◽  
Bowen Zhang ◽  
...  
Keyword(s):  
Rice Field ◽  
Nitrogen Loss ◽  
Nitrogen Recovery ◽  
Deep Placement ◽  
Fertilizer Nitrogen ◽  
Urea Deep Placement

Nitrogen balance studies in rice using 15N-labelled urea and urea supergranules

1989 ◽  
Vol 113 (1) ◽  
pp. 119-121 ◽  
Author(s):  
S. K. Mohanty ◽  
S. P. Chakravorti ◽  
A. Bhadrachalam
Keyword(s):  
Nitrogen Balance ◽  
Rice Field ◽  
Nitrogen Efficiency ◽  
Seasonal Effects ◽  
Split Application ◽  
Deep Placement ◽  
Fertilizer Nitrogen ◽  
Urea Supergranules ◽  
The Poor ◽  
Different Types

Recovery of applied nitrogen by the rice crop is invariably low, often 30–50% (Prasad & De Datta 1979). The poor recovery has been attributed to different types of losses occurring in the rice field. Recovery improved with split application, delayed application or deep placement (Pillai & Vamadevan 1978; Craswell & Vlek 1979), indicating that the management factor plays an important role in increasing fertilizer nitrogen efficiency. To investigate such factors, and seasonal effects, field experimentswere carried out using 15N-labelled urea (PU) and urea supergranules (USG). The recovery of fertilizer 15N by the plant and retention in the soil were studied in both dry and wet seasons.

scholarly journals Tracking the Fate of Fertilizer Nitrogen in a Paddy Rice Field Using Isotope Technology

2019 ◽  
Vol 29 (1) ◽  
pp. 419-428
Author(s):  
Xiangfei Yu ◽  
Yingying Xu ◽  
Hui Zhu ◽  
Brian Shutes ◽  
Baixing Yan ◽  
...  
Keyword(s):  
Rice Field ◽  
Paddy Rice ◽  
Fertilizer Nitrogen ◽  
Paddy Rice Field

Fertilizer nitrogen recovery in tea as influenced by nitrogen levels

1999 ◽  
Vol 30 (11-12) ◽  
pp. 1747-1758 ◽  
Author(s):  
R. Raj Kumar ◽  
S. Marimuthu ◽  
L. Manivel
Keyword(s):  
Nitrogen Recovery ◽  
Fertilizer Nitrogen ◽  
Nitrogen Levels

scholarly journals Effect of Slow Release Fertilizer on Nitrogen Absorption and Fertilizer Nitrogen Recovery Rate in Chinese High-Yielding Rice Cultivars

2012 ◽  
Vol 81 (4) ◽  
pp. 424-431 ◽  
Author(s):  
Toshiaki Kokubo ◽  
Akira Miyazaki ◽  
Tetsushi Yoshida ◽  
Yoshinori Yamamoto ◽  
Yoko Inoue ◽  
...  
Keyword(s):  
Recovery Rate ◽  
Slow Release ◽  
Nitrogen Recovery ◽  
Rice Cultivars ◽  
Nitrogen Absorption ◽  
Fertilizer Nitrogen ◽  
Slow Release Fertilizer
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