Nutrient uptake of rice varietyJaya at different levels and timings of nitrogen application under two systems of water management

Author(s):  
K Gopalakrishna Pillai ◽  
Rajat De
Semiotika ◽  
2017 ◽  
Vol 13 ◽  
pp. 57-76
Author(s):  
Giedrė Smolskaitė

In works of literature, music can be found in the form of score fragments, notation symbols, song lyrics, musicological terminology, acoustic aspects of speech, musicians as characters, etc. Such manifestations connect two systems of signification and create an intermedial dialogue between music and literature, which requires a specific methodological approach. According to the intermediality theoretician Werner Wolf, “[t]he verbal text appears to be or become [...] similar to music, or to effects connected with certain compositions, and we get the impression of experiencing music ‘through’ the text”26. This paper discusses possible forms of a musico-literary relationship, the effects they produce, and examples of musicalization found in Kostas Ostrauskas’s play The Quartet (1969). In this play, the musico-literary dialogue is developed on different levels: structure and story, the twofold nature of the characters, intertextuality. Analysis of the play’s architextual relationship with the medium of music helps to identify the specific, musico-literary genre of this play. This unusual genre is defined not only by the content of The Quartet but also by its expression, i.e. graphic nuances, inserted imagery, etc. As shown by the analysis, the play could be understood as a metonymy of the history of both contemporary music and dramatic literature.


2016 ◽  
Vol 41 (1) ◽  
pp. 163-171 ◽  
Author(s):  
MA Razzaque ◽  
MM Haque ◽  
MA Karim ◽  
ARM Solaiman

A pot culture experiment was conducted at the Bangabandhu Sheikh Mujibur Rahman Agricultural University (BSMRAU), Gazipur during kharif II, 2012 to evaluate the nodulation, biological nitrogen fixation and yield potential of genotypes of mungbean under varying levels of N application. There were 10 mungbean genotypes viz. IPSA 12, GK 27, IPSA 3, IPSA 5, ACC12890055, GK 63, ACC12890053, BU mug 4, BARI Mung 6 and Binamoog 5, each genotype treated with six levels of N (0, 20, 40, 60, 80 and 100 kg N ha-1) . Among the genotypes, the IPSA 12 at 40 kg N ha-1 produced the maximum number of nodules (14.54 plant-1) as well as the highest nitrogen fixation (2.684 mmol C2H4). This resulted in the highest seed yield (14.22 g plant-1). The genotype ACC12890053 recorded the lowest nodulation (6 plant-1), nitrogen fixation (1.134) and seed yield (7.33 g plant-1).Bangladesh J. Agril. Res. 41(1): 163-171, March 2016


2020 ◽  
Vol 44 (4) ◽  
pp. 550-568
Author(s):  
Md Toufiq Iqbal ◽  
Ibrahim. A. M. Ahmed ◽  
Mehmet Isik ◽  
Fahmida Sultana ◽  
Ibrahim Ortaş

Water ◽  
2020 ◽  
Vol 12 (3) ◽  
pp. 766 ◽  
Author(s):  
Nicola Ulibarri ◽  
Nataly Escobedo Garcia

Environmental governance scholars argue that optimal environmental performance can be achieved by matching the scale of governance to the scale of the resource being managed. In the case of water, this means managing at the scale of the watershed. However, many watersheds lack a single watershed-scale organization with authority over all water resources and instead rely on cross-jurisdiction coordination or collaboration among diverse organizations. To understand what “watershed governance” looks like fully, this paper maps organizations with rights to use, regulate, or manage water in four subwatersheds in California (the American, Cosumnes, and Kings Rivers in the Sacramento-San Joaquin watershed and the Shasta River in the Klamath watershed). We assemble datasets of water organizations, water rights holders, and water management plans and use content analysis and social network analysis to explore what water management looks like in the absence of a single basin authority. We describe the institutional complexity that exists in each watershed, compare the physical and institutional interconnections between actors in the watersheds, and then ask to what extent these connections map onto watershed boundaries. We find that the ways in which water management is complex takes very different forms across the four watersheds, despite their being located in a similar political, social, and geographic context. Each watershed has drastically different numbers of actors and uses a very different mix of water sources. We also see very different levels of coordination between actors in each watershed. Given these differences, we then discuss how the institutional reforms needed to create watershed-scale management are unique for each watershed. By building a stronger comparative understanding of what watershed governance actually entails, this work aims to build more thoughtful recommendations for building institutional fit.


Sensors ◽  
2019 ◽  
Vol 19 (23) ◽  
pp. 5250 ◽  
Author(s):  
Yu Zhang ◽  
Wenting Han ◽  
Xiaotao Niu ◽  
Guang Li

The rapid, accurate, and real-time estimation of crop coefficients at the farm scale is one of the key prerequisites in precision agricultural water management. This study aimed to map the maize crop coefficient (Kc) with improved accuracy under different levels of deficit irrigation. The proposed method for estimating the Kc is based on multispectral images of high spatial resolution taken using an unmanned aerial vehicle (UAV). The analysis was performed on five experimental plots using Kc values measured from the daily soil water balance in Ordos, Inner Mongolia, China. To accurately estimate the Kc, the fraction of vegetation cover (fc) derived from the normalized difference vegetation index (NDVI) was used to compare with field measurements, and the stress coefficients (Ks) calculated from two vegetation index (VI) regression models were compared. The results showed that the NDVI values under different levels of deficit irrigation had no significant difference in the reproductive stage but changed significantly in the maturation stage, with a decrease of 0.09 with 72% water applied difference. The fc calculated from the NDVI had a high correlation with field measurement data, with a coefficient of determination (R2) of 0.93. The ratios of transformed chlorophyll absorption in reflectance index (TCARI) to renormalized difference vegetation index (RDVI) and TCARI to soil-adjusted vegetation index (SAVI) were used, respectively, to establish two types of Ks regression models to retrieve Kc. Compared to the TCARI/SAVI model, the TCARI/RDVI model under different levels of deficit irrigation had better correlation with Kc, with R2 and root-mean-square error (RMSE) values ranging from 0.68 to 0.80 and from 0.140 to 0.232, respectively. Compared to Kc calculated from on-site measurements, the Kc values retrieved from the VI regression models established in this study had greater ability to assess the field variability of soil and crops. Overall, use of the UAV-measured multispectral vegetation index approach could improve water management at the farm scale.


2018 ◽  
Vol 8 (03) ◽  
Author(s):  
R. Sikka ◽  
D. Singh ◽  
J. S. Deol ◽  
Navneet Kumar

A field experiment on soybean was conducted at the regional research farm of the Punjab Agricultural University, Naraingarh (Distt. Fateh Garh Sahib) for three years under irrigated conditions for productivity enhancement through integrated nutrient and other agronomic interventions. There were twelve treatments comprising different levels of N, P, K, FYM and agronomic management practices. The results revealed that soybean significantly responded to the application of N, P, K and FYM. Maximum yield was recorded in the treatment where FYM was applied with NPK and resulted in an increase of 10.8 per cent over NPK alone. Application of additional 30 kg N ha-1 at pre-flowering or at pod initiation did not significantly enhance the yield over the basal dose of NP applied at sowing. Application of 4 tonnes wheat straw mulch + 30 kg N +60 kg P2O5 and 30 kg N + 60 kg P2O5 ha-1 showed similar effect on seed yield of soybean. No statistical difference in soybean yield was observed in the conventional flat and bed sowing treatments. Pre-emergence application of pendimethaline @ 1.5 l ha-1 along with one hand weeding at 40 days after sowing (DAS) and two hand weeding at 20 and 40 DAS were equally effective for weed control and in influencing the soybean yield. The application of N, P, K and FYM, in different treatments, treatment with Bradyrhizobium japonicum and sowing on beds all significantly improved the N, P and K uptake by soybean over control. Application of FYM to soybean resulted in maximum nutrient uptake by soybean. After three years a significant improvement in soil organic carbon, available N, P and K was observed in all treatments over control.


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