Статьи :

8 904 Jun 30, 2022 8:48:10 AM
Аннотация

The study of technological features of industrial silkworm hybrids with the participation of sex-labeled lines is considered in this paper. To evaluate new hybrid combinations of silkworms according to technological features, 300-400 samples each of hybrids were taken from a mixture of cocoons. Samples of cocoons were frozen and pupae are killed at high temperature and dried in the shade. Unwinding tests were made at the Scientific Research Institute of Natural Fibers (Uzbekistan) and the leading technological indicators were determined, such as the yield of raw silk, the yield of all silk products, the unwinding of cocoons, the length of the continuously unwound thread, the total length of the thread, the metric number of the cocoon thread, and the specific consumption of cocoons to obtain 1 kg of raw silk. Based on the results of a three-year comparative study of eight silkworm hybrids, two reciprocal hybrids Line 32 mech x Line 101 and Line 101 x Line 32 mech were identified, which have high rates of raw silk (46.56-47.34%), cocoon unwinding (91.3-93.3%), total thread length (1540-1637 m), and metric thread number (3369-3478 m/g). It was concluded that it is expedient to use sex-labeled silkworm lines as parental components in the grain production of Uzbekistan.

#thread #silkworm #hybrid #silk #cocoon #Line 32 mech #Line 101

7 763 Jun 30, 2022 8:55:08 AM
Аннотация

The use of modern land accounting techniques and the incorporation of field research findings into geodata have not been given top attention in Uzbekistan's various landscape areas. Additionally, there is still a lack of relevant investigations on the visualization, analysis, processing, process automation, and regulation of soil ecological conditions in the interpolation approach of GIS. This study uses GIS and remote sensing methods to identify snow cover in a mountainous area in Kashkadarya Province, Uzbekistan. The results of this study have an impact on how crops are grown and land resources are managed sustainably in this area. Using satellite images in ArsGIS software and remote sensing methods based on hydrometeorological data of geophysically connected field surveys relating to the study site, electronic maps for the experimental years of 2015–2018 were developed. Our findings pose possibilities to undertake geostatistical analysis, depict the contours dividing the soil separations, and incorporate the information discovered through field research into a geodatabase.

#Uzbekistan #GIS #landsat #snow cover #NDSI #ArcMap

7 743 Jun 30, 2022 8:59:27 AM
Аннотация

The gap in the food production's modest increase in Uzbekistan shows that the country's overall food security problem is becoming insecure every year. Increasing the effectiveness of agricultural land usage, which serves as the main foundation for the development of these agricultural products, is key to solving this problem. Given the foregoing, the goal of this study is to develop a system for the appropriate organization of monitoring of land and crops in rainfed areas of Kashkadarya province, Uzbekistan. The location of fields, the internal structure of the region, and the creation of a set of measures aimed at minimizing water erosion should all receive special consideration while working on land management initiatives. Such an experimental project was created using the "Turnabulak" massif as an illustration, which is located in the arid Yakkabag district of Kashkadarya province. This research suggests that it is crucial to create such agricultural projects experimentally and, in these projects, the proper selection of plots of arable land for crops and trees based on all the characteristics of the rainfed land.

#Uzbekistan #GIS #landscape #crop rotation #Rainfed cropland #Contours

9 764 Jun 30, 2022 9:01:31 AM
Аннотация

The conservation of water resources, their wise usage, and consumer access continue to be major and relevant issues nowadays. Regulating the system of effective use of the existing water resources is crucial for addressing the issue of water scarcity. The goal of the article is to create irrigation technologies and techniques for viticulture, which is growing and expanding year after year in the context of a growing water shortage, that are acclimatized to the soil and climatic conditions of the mountainous area of Uzbekistan. A study on drip irrigation of vineyards using local runoff was conducted in the foothills of Kashkadarya province in Uzbekistan on gray soils and few water supplies. In addition, irrigation was done using a 2-3-2 system with irrigation norms of 170-200 m3 /ha and seasonal irrigation norms of 1300-1900 m3 /ha while pre-irrigation soil moisture was kept at 70-75-65% relative to LFMC. By yielding 20.8 tons/ha of grapes, which was shown to be 5.6 tons/ha or 24% more than the control alternative, which is a standard furrow irrigation, 33% of water resources were conserved.

#Uzbekistan #irrigation #drip irrigation #vineyards #Water saving