scholarly journals Growth response of blue panic grass (Panicum antidotale) to saline water irrigation and compost applications

Water Science ◽  
2021 ◽  
Vol 35 (1) ◽  
pp. 31-38
Author(s):  
Karam Farrag ◽  
Sara Gamal Abdelhakim ◽  
Amr Ramadan Abd El-Tawab ◽  
Hamada Abdelrahman
2020 ◽  
Vol 9 (1) ◽  
pp. 270-276
Author(s):  
B R Morwal ◽  
Pradeep Pagaria ◽  
Shayam Das ◽  
Vinay Kumar

Author(s):  
Leandro de P. Souza ◽  
Reginaldo G. Nobre ◽  
Evandro M. da Silva ◽  
Geovani S. de Lima ◽  
Francisco W. A. Pinheiro ◽  
...  

ABSTRACT The objective of this research was to evaluate the growth and formation of fresh and dry weight of ‘Crioula’ guava rootstock irrigated with waters of different saline levels and nitrogen (N) doses, in an experiment conducted in plastic tubes under greenhouse conditions. The experimental design was randomized blocks, in a 5 x 4 factorial scheme with four replicates, and the treatments consisted of five levels of water electrical conductivity - ECw (0.3, 1.1, 1.9, 2.7 and 3.5 dS m-1) and four N doses (70, 100, 130 and 160% of the N dose recommended for the cultivation of guava seedlings, cv. ‘Paluma’). The dose referring to 100% corresponds to 773 mg of N dm-3. The highest growth of ‘Crioula’ guava rootstock was obtained with ECw of 0.3 dS m-1 and fertilization of 541.1 mg N dm-3 of soil; increasing N doses did not reduce the deleterious effect of the salt stress on the growth and phytomass formation of ‘Crioula’ guava rootstock; irrigation with water of up to 1.75 dS m-1, in the production of guava rootstocks, promotes acceptable reduction of 10% in growth and quality of the seedlings.


1996 ◽  
Vol 35 (2) ◽  
pp. 177-186 ◽  
Author(s):  
P. S. Minhas ◽  
Y. P. Singh ◽  
O. S. Tomar ◽  
R. K. Gupta ◽  
Raj K. Gupta

Author(s):  
Márcio H. da C. Freire ◽  
Geocleber G. de Sousa ◽  
Maria V. P. de Souza ◽  
Emanuel D. R. de Ceita ◽  
Jamili N. Fiusa ◽  
...  

ABSTRACT The objective of this study was to evaluate the performance of three rice cultivars under saline water irrigation. The experiment was carried out in full sun at the Experimental Farm of the Unilab, in Redenção, Ceará, Brazil, in January 2016. The experimental design was completely randomized (CRD), in a 5 x 3 factorial scheme [irrigation water electrical conductivity (ECw: 0.5, 1.0, 2.0, 3.0 and 4.0 dS m-1) versus three rice cultivars (C1 - Ligeirinho, C2 - Casado and C3 - Meruinho)], totaling 15 treatments, with 4 replicates of 30 seeds per cultivar. After 21 days, the following variables were evaluated: emergence percentage (EP), emergence speed index (ESI), mean time of emergence (MTE), mean speed of emergence (MSE), shoot dry matter (SDM), root dry matter (RDM) and total dry matter (TDM). The cultivar Ligeirinho showed higher tolerance to saline stress with respect to the emergence percentage, emergence speed index and mean speed of emergence. The cultivar Casado showed higher tolerance to saline stress for shoot dry matter, root dry matter and total dry matter in comparison to the other cultivars.


2020 ◽  
pp. 1-14
Author(s):  
Alaa Ibrahim ◽  
Jamal Elfaki

A greenhouse experiment was carried out to evaluate the response of tomato (Solanum lycopersicum) to saline water irrigation under soilless and traditional techniques. A special fertigation technique with two different salinity levels (1 dS m-1 and 4 dS m-1) of water was used under different soilless media, namely, perlite, gravel, and pozzolana as inert media, in addition to traditional techniques. Results showed that among the three soilless substrates, perlite medium produced the highest total yields with larger fruit sizes. Furthermore, the perlite medium enabled significant savings in water, compared to gravel (-15%) and pozzolana (-20%). Moreover, the results corroborated the existing knowledge on the tolerance of tomato to brackish water irrigation, since there was no significant difference in yield of plants grown in the soil irrigated with water with salinity levels of 1.1   dSm-1 and 4-5  dS m-1. Plant biometric data revealed a better and quicker development of plants grown in the soilless media compared to those grown in the soil, even in the case of freshwater irrigation.


Sign in / Sign up

Export Citation Format

Share Document