This weed management investigation was carried out at the Zonal Agricultural Research Station (ZARS), Bangalore, during the summers of 2017 and 2018 to standardize agrotechniques for weed management of rice grown under aerobic conditions. The experiment was laid out in a randomized complete block design with eleven treatments replicated thrice. It consisted of two pre-emergence herbicides and one early post-emergence herbicide, the stale seedbed technique, mulching, hand weeding and intercultivation which was compared to the weedy check. The results showed that pyrazosulfuron ethyl 10% wettable powder (WP) at 35 active ingredient (a.i.) g ⋅ ha–1 as PE fb bispyribac sodium 10% SC at 30 ml ⋅ ha–1 a.i. as an early post-emergence herbicide performed better in terms of rice grain and straw yield (5,800 and 9,786 kg ⋅ ha–1, respectively), plant height (58.42 cm), rice total dry matter production (149.84 g ⋅ plant–1), productive tillers ⋅ hill–1 (40.32), panicle length (24.53 cm), 1000 grain weight (25.35 g), net returns (Rs. 62424), higher B : C ratio (2.59) and lower total weed density, weed dry weight at different stages of rice and weed index (3.80%) as well as higher weed control efficiency (90.52%). This practice could be recommended to farmers growing aerobic rice under these climatic conditions.
Krill larvae distribution and abundance in waters surrounding South Shetland Islands were studied in February and March 1981. Main concentrations of larvae were noted over great depths near the continental slope. High densities of krill larvae were encountered in stations where phytoplankton was moderately abundant.
The paper discusses the method of the substitution by homophones that is extensively used in many fields in China, among others onomastics, such as toponymy or anthroponymy. The Chinese language has always contained a considerable number of homophones, i.e. words pronounced alike but spelt/written differently and having different meanings. The situation resulted from two main factors: the nature of the Chinese language and the sound changes to spoken Chinese language, i.e. a strong tendency to sound simplification. The method of the substitution by homophones is mainly aimed at reshaping already existing names by replacing their previous form, for some reasons unwanted. However, it is also broadly applied to create new names by using words which are homophonic with the words denoting the idea they symbolize. The paper presents some various reasons and aims of the use of the method in the domain of Chinese geographical names, and the more detailed analysis of its use in the changing of old street (hutong) names after 1949 in Beijing. The research material consists of 1,159 hutong names, and the names changed by the use of the method accounts for 23.5% of the total.
This article presents combined approach to analog electronic circuits testing by means of evolutionary methods (genetic algorithms) and using some aspects of information theory utilisation and wavelet transformation. Purpose is to find optimal excitation signal, which maximises probability of fault detection and location. This paper focuses on most difficult case where very few (usually only input and output) nodes of integrated circuit under test are available.