Degradation trends based on MODIS-derived estimates of productivity and water use efficiency: A case study for the cultivated pastures in the Brazilian Cerrado

2018 ◽  
Vol 11 ◽  
pp. 30-40 ◽  
Author(s):  
Fernando Hiago Souza Fernandes ◽  
Edson Eyji Sano ◽  
Laerte Guimarães Ferreira ◽  
Gustavo Macedo de Mello Baptista ◽  
Daniel de Castro Victoria ◽  
...  
2013 ◽  
Vol 5 (1) ◽  
pp. 16 ◽  
Author(s):  
Orphanopoulos Damaris ◽  
Verbist Koen ◽  
Chavez Alvaro ◽  
Soto Guido

2016 ◽  
Vol 11 (8) ◽  
pp. 701-708
Author(s):  
Jos eacute Ara uacute jo da Silva Tonny ◽  
Franco Duarte Thiago ◽  
Val eacute ria Rodrigues Sousa Jackelinne ◽  
Maria Bonfim Silva Edna ◽  
Bicioni Pacheco Adriano ◽  
...  

2013 ◽  
Vol 689 ◽  
pp. 167-171
Author(s):  
Xiang Yang Jiang ◽  
Ching Hin Law ◽  
Jian Kun Yang

Building is a significant contributor for water consumption and it is necessary to increase water use efficiency. This research introduced the current problem in calculating water quota, discussed the calculation of domestic and miscellaneous water consumption and proposed the calculation method for the consumption of unconventional water resource. Finally by a case study, this paper summarized the calculation method and procedure for utilization ratio of unconventional water resource.


2017 ◽  
Vol 35 (1) ◽  
pp. 275-280
Author(s):  
Hossein Yousefi ◽  
Ali Mohammadi ◽  
Mitra Mirzaaghabeik ◽  
Younes Noorollahi

AbstractShortage of water is considered as one of the most important straits of agricultural development in Iran. The main purpose of this study is to determine virtual water used to pea and bean production and water use efficiency, select the best area for cultivating these two grains and find the virtual water budget for the aforementioned grains. The results showed that among the three provinces main producers of pea in Iran, the highest virtual water of pea belongs to Lorestan with 3534 dm3·kg−1 and the lowest belongs to West Azerbaijan with 2660 dm3·kg−1 in irrigated cultivation. Water use efficiency in irrigated cultivation in Kermanshah and West Azerbaijan are at the same level; however, Kermanshah has enjoyed much more level of virtual water. For beans, the highest amount of virtual water in irrigated cultivation belongs to Lorestan (3651 dm3·kg−1) and the lowest amount refers to Markazi (2725 dm3·kg−1) and also the highest level of water use efficiency for this product refers to Markazi. Also it was found that 160.15 mln m3 of water has been exported from the country water resources by these products so virtual water budget for studied crops were negative.


2019 ◽  
Vol 176 ◽  
pp. 102646 ◽  
Author(s):  
A. Bonfante ◽  
E. Monaco ◽  
P. Manna ◽  
R. De Mascellis ◽  
A. Basile ◽  
...  

2018 ◽  
Vol 42 (3) ◽  
pp. 271-280 ◽  
Author(s):  
Fernando França da Cunha ◽  
Ivan Pereira de Souza ◽  
Washington de Oliveira Campos ◽  
Valter Carvalho de Andrade Júnior ◽  
Thiago Alves Magalhães ◽  
...  

ABSTRACT Due to the water balance in the Brazilian Cerrado, it is not necessary to cultivate arugula in a rainfed system. Together with the lack of research on with this crop, it is necessary to study the response of genotypes to irrigation in this biome. Thus, the objective of this study was to determine the optimal irrigation depth and to identify the best arugula genotypes. Three arugula genotypes were field-tested during two cycles under the effect of four irrigation depths based on crop evapotranspiration. The parameters evaluated were root depth, SPAD index, number of plants and leaves per plant, plant diameter, fresh shoot mass and water use efficiency. The arugula presented the same demand for irrigation in the two cycles, and the genotypes and/or irrigation depths affected the evaluated parameters. The results support that the Folha Larga variety should be preferred by Brazilian Cerrado producers and irrigated with 90% replacement of crop evapotranspiration.


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