scholarly journals Water and nitrogen water use efficiency in forage palm irrigated with salt water in the Neossolo

Author(s):  
Patrícia Ferreira da Silva ◽  
Rigoberto Moreira de Matos ◽  
José Dantas Neto ◽  
Vitória Ediclécia Borges ◽  
Thiago Galvão Sobrinho ◽  
...  

The objectives were to analyze the water and nitrogen use efficiency by forage palm in different irrigation depths with saline water and nitrogen fertilization levels in the Brazilian semi-arid region. The experiment was conducted under field condition during one year of cultivation (360 days). The experimental design was a complete randomized block and 5 x 5 factorial scheme with five irrigation depths (125, 100, 75, and 25% of ET0) and five levels of nitrogen fertilization (0, 150, 300, 450 and 600 kg ha-1 of N) and three replicates. Irrigation and acceptable nitrogen fertilization resulted in a good water and fertilization management. Water and nitrogen use efficiency of forage palm were higher, when water depths and the nitrogen levels supplied to the soil were increased. The 125% ET0 depth showed a higher efficiency of water and nitrogen use in the forage palm during 360 days of study. In conditions of low nitrogen supply, the efficiency of nitrogen use is directly and indirectly associated with the fresh mass yield; while under high supply, the efficiency of the use of nitrogen is more effective. The use of irrigation and nitrogen fertilization in the semi-arid region is recommended to obtain higher productivity of water and nitrogen from the forage palm.

2017 ◽  
Vol 65 (4) ◽  
pp. 410
Author(s):  
Sanatan Pradhan ◽  
Kalikinkar Bandyopadhyay ◽  
Usha Kiran Chopra ◽  
Prameela Krishnan ◽  
Arun Kumar Jain ◽  
...  

2013 ◽  
Vol 134 ◽  
pp. 72-82 ◽  
Author(s):  
M. Devkota ◽  
C. Martius ◽  
J.P.A. Lamers ◽  
K.D. Sayre ◽  
K.P. Devkota ◽  
...  

2021 ◽  
Vol 37 ◽  
pp. e37013
Author(s):  
Manoel Galdino Dos Santos ◽  
Rayanne Maria Paula Ribeiro ◽  
Hamurábi Anizio Lins ◽  
Giordanio Bruno Silva Oliveira ◽  
José Ricardo Tavares de Alburquerque ◽  
...  

Nitrogen (N) is an essential macronutrient for plant growth and rate applications can influence the performance of sesame, and when applied in excess can cause nitrogen loss in the environment, and consequently make the cost of production more costly to the producer. Therefore, the objective of this work was to evaluate the efficiency of nitrogen use by different cultivars of irrigated sesame seeds under the edaphoclimatic conditions of the northeastern semi-arid region in two harvests. The experiments were carried out from February to May (1st harvest) and from July to October (2nd harvest) in 2016. The treatments were arranged in a split plot scheme, in which the plots were the five nitrogen doses (0, 30, 60, 90 and 120 kg ha-1), and in the subplots, the four sesame genotypes (CNPA G2, CNPA G3, CNPA G4 and BRS Seda), the design was in randomized complete blocks with four replications. The nitrogen use efficiency assessments evaluated were: agronomic efficiency (AE), physiological efficiency (PE), agrophysiological efficiency (APE), recovery efficiency (RE) and efficiency of use (EU). The rate that provided the greatest efficiency of use was 30 kg ha-1 of N applied. The cultivar BRS Seda had greater efficiency of use in relation to the other cultivars studied. The crop that had better efficiency of use was the 2nd agricultural harvest.


2019 ◽  
Vol 666 ◽  
pp. 849-857 ◽  
Author(s):  
Amar Razzaq ◽  
Ping Qing ◽  
Muhammad Asad ur Rehman Naseer ◽  
Muhammad Abid ◽  
Mumtaz Anwar ◽  
...  

PLoS ONE ◽  
2020 ◽  
Vol 15 (5) ◽  
pp. e0233674
Author(s):  
Benjamin Davies ◽  
Jeffrey A. Coulter ◽  
Paulo H. Pagliari

2019 ◽  
Vol 205 (6) ◽  
pp. 635-646 ◽  
Author(s):  
Therese M. McBeath ◽  
Vadakattu V. S. R. Gupta ◽  
Rick S. Llewellyn ◽  
Sean D. Mason ◽  
Christopher W. Davoren ◽  
...  

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