bluuebunny/crossref_metadata_2025_split huggingface dataset:
Identifying Tall Trees in Man-Made Tropical Rain Forest using Airborne LiDAR Point-Cloud
Authors: Yaakub Siti Yasmin , Misman Muhamad Afizzul , Omar Hamdan 
Published: August 2020

Abstract

Shorea glauca or locally known as Balau Laut has been listed in Malaysia Book of Records in 2016 as the tallest tree ever planted with height of 72.4 meter. The tree was found in FRIM Selangor Forest Park (FRIM-SFP) tropical rain forest. In addition, there are other tall trees found within FRIM-SFP. However, tall trees are always exposed to lightning strikes that eventually damage and may lead to mortality of the trees. Therefore, it is important to identify these tall trees for conservation purposes. Conventional approach which is ground survey requires a lot of man power and time consuming due to wide forest area. The topographic condition also could hinder the survey. This study used canopy height model (CHM) and incorporate it with 3-dimensional structure of LiDAR point-cloud to improve individual tree detection. The location of tall trees were mapped. The finding showed that most of the tall trees are clustered in eight spots and a few found isolated from other tall trees. The CHM were then overlaid with soil map and Digital Terrain Model (DTM). The result showed that the first two tall trees and 36 trees of 60-65m height class are grown in Tai Tak soil series in hilly area with slope 16-25°.
Slope Effect on The Vertical Accuracy of Spatial Information Using Multi Rotor UAV
Authors: Talib Noorfatekah , Subri Amir Ariff , Haron Narashid Rohayu , Pa’suya Muhammad Faiz , Anshah Siti Aminah 
Published: August 2020

Abstract
Unmanned aerial vehicle (UAV) recently has been proved to be used for slope mapping studies. Slope map can be created by gathering spatial information including elevations and surface features of the surrounding terrain. Spatial information on a slope is important to enhance the efficiency of slope modeling. Thus, the spatial information must be very accurate and reliable. This study aims to determine the effect of a slope on the vertical accuracy of spatial information acquired by using multi-rotor UAV. The objectives are to investigate the effect of slope elevation and to identify the effect of slope steepness on the vertical accuracy of spatial information acquired using multi-rotor UAV. Terrain Model (DTM), Contour Map, Triangular Irregular Network (TIN), and Slope Map is produced for analysis purpose. It was found that the vertical accuracy of spatial information increase when the elevation of slope and steepness of slope decrease. In conclusion, slope elevation and slope steepness do have an influence on the vertical accuracy of spatial information captured by UAV.
Rapid And Non-Destructive Evaluation On Cacao Pigments, Flavonoids And Nitrogen Contents During Pod Development And Maturity Using A Fluorescence Sensor
Authors: Tee Y K , Balasundram S K , Shariff A R M , Ding P 
Published: August 2020

Abstract
The detection of pigments in cacao pods together with colourless flavonoids serves as a useful indicator for pod maturity using a fast and non-destructive multiparametric fluorescence sensor. In this study, the contents of anthocyanin, flavonol, chlorophyll and nitrogen balance were determined monthly (1-5 months) after flower fertilization as pod developed and matured using a fluorescence-based portable sensor on cacao pods from five different clones of DESA1, KKM22, KKM25, MCBC1 and PBC221. There were significant differences (P≤0.05) observed between the interaction of five different cacao clones and pod development periods in flavonol, chlorophyll and nitrogen balance contents. As pods developed, anthocyanin and flavonol accumulated while the content of chlorophyll decreased only when pod matured with nitrogen balance showed a decreasing trend in cacao pods. Among these clones, as expected, natural red appearance in cacao pods of DESA1 showed significantly highest index of anthocyanin (0.637), following by KKM22 (0.255). In addition, there was no significant difference observed in KKM25, MCBC1 and PBC221 for anthocyanin content. During pod development, MCBC1 showed the least content in flavonol (P≤0.05) and the chlorophyll contents in KKM22 and MCBC1 were lower compared to other clones. As a conclusion, non-destructive fluorescence-based indices can be used to measure the pigments and flavonoids in cacao which can provide valuable non-destructive indicators for cacao pod maturity across different cacao cultivars.
Institutional and transport conditions for the development of agricultural exports from the Far East region
Authors: Antonova N E , Bardal A B 
Published: August 2020

Abstract
The purpose of the study was to investigate the influence of the state regulation and transport support on the export of agricultural products in the Far East Federal District of Russia. The study identified the two main positive effects the territories of advanced socio-economic development made on the development of the industry: 1) large businesses invested in the crop and livestock sectors, 2) the number of investments in agricultural projects increased. The article also discussed the growing role of China as the Russian Far East trade partner and investor, and the influence of the transportation factor on the growth of the Federal District’s agricultural export potential. The development of the transport infrastructure stimulates the export of agricultural products from the Far East.
Comparison of productivity indicators for the Far Eastern selection of soybean varieties under adverse climatic conditions with different planting dates
Authors: Fedorova T N , Dubrovin K N , Selezneva N A 
Published: August 2020

Abstract
The aim of this study was to determine the relationship between the productivity indicators of soybean varieties of the Far Eastern selection and the climatic conditions of the Russian Far East. We studied the yield, protein content, 1000 seed weight, and the number of beans and seeds per plant, according to the planting date of two varieties: «Batya» and «Khabarovskiy Jubilyar». The duration of the growing season, the sum of temperatures, the amount of precipitation, as well as the Selyaninov Hydrothermal Coefficient were considered as characteristics of the growing season. The period in which the experiment was conducted was unfavorable for the growth and development of soybeans compared with long-term average values. The number of beans per plant, the number of seeds per plant and the yield of «Khabarovskiy Jubilyar» were higher than the corresponding values for «Batya» (the yield of «Khabarovskiy Jubilyar» was 0.8 t/ha higher than «Batya»). Hydrothermal conditions limited the realization of the potential productivity of «Batya», restricting it to 45% of the potential yield. For «Khabarovskiy Jubilyar», this figure was 87%. The relationship between productivity and the length of growth period, as well as hydrothermal characteristics, was established.
Practical aspects of the selection of parental forms in the distant soybean hybridization
Authors: Fokina E M , Kalitskaya N G 
Published: August 2020

Abstract
The article presents the results of research of the genetic collections of cultivated (KF, KB) and wild (KD) soybean of the gene pool of the All-Russian SRI of Soybean. The experimental part of the work was carried out in the laboratory of soybean breeding and genetics of Federal State Budget Scientific Institution “All-Russian Scientific Research Institute of Soybean” (FSBSI ARSRI) of Soybean in the period from 2016 to 2019. Field experiments were laid on the plots of selective crop rotation (Sadovoe village, Tambov district, Amur region) on meadow chernozem soil. The goal of research was to evaluate the source material of wild forms and cultural samples of soybean according to economically valuable traits and photosynthetic activity for selection of high-yielding varieties adapted to local growing conditions. As a result of research, genetic sources of various economically valuable traits were identified from the collection of wild soybean. According to a number of characteristics, soybean varieties were selected from the collections of cultivated soybean KB and KF: Kitrossa, Intriga, Nevesta, Hedi, Tundra with a growing season of 111…116 days and a yield of 3.11…3.37 t/ha, exceeding the standard Dauriya by 0.26…0.52 t/ha. The indicators of photosynthetic process intensity in plant leaves was determined in samples isolated by a complex of economically valuable traits from the collection of wild soybean: KBel-50, KA-1396, KM-695, KM-705, KT-156 (St) and from the best varieties of KB and KF collections. The analysis of the conducted studies made it possible to identify the most promising varieties and forms of wild soybean with the optimal level of activity of photosynthetic processes, which, along with sources of economically valuable traits from the collections of KD, KF, and KB, were included in crossbreeding in 2018-2019.
Biologically active substances of plant components for the enrichment of dairy products
Authors: Babukhadia K R , Ermolaev A O , Podtoptannyi V C 
Published: August 2020

Abstract
The article discusses the possibility of using arabinogalactan and powder from pumpkin pulp as enriching plant components of the curd mass. To this end, the technological properties of the food additive arabinogalactan (Lavitol-arabinogalactan), the properties of the vegetable additive in the form of powder from pumpkin pulp as a functional component, the aspects of their influence on the qualitative characteristics of the curd mass, the optimal dosage of the enriching ingredients in the curd recipe were studied. The combination of raw components adopted according to the research results allows to obtain curd mass enriched with vegetable micronutrients and expand the assortment line of curd products with a functional load.
Agricultural sector of the Khabarovsk Territory: status, problems and development prospects
Authors: Kim L V , Nazarova A A , Vdovenko V A 
Published: August 2020

Abstract
Article analyzes agricultural sector of the Khabarovsk Territory for the period of 1990-2019. The production of crop and livestock was analyzed by category of enterprises, as well as land use in the agricultural sector of the region. As a result of the research, the main directions for the stabilization and development of agricultural production in the Khabarovsk Territory have been developed to meet needs of the population in milk, egg, fresh meat, and locally produced vegetables. An increasing role of farms in the production of livestock products is expected due to a decrease of households’ contribution.
Processing data from Russian meteorological satellites to solve agricultural problems
Authors: Kuchma M O , Bloshchinskiy V D , Andreev A I , Kholodov E I 
Published: August 2020

AbstractThis paper describes the procedures for preliminary and thematic processing of satellite data in the Far-Eastern Center of State Research Center for Space Hydrometeorology «Planeta» for their use in agricultural tasks. A brief description of cross-calibration procedures for the MSU-MR («Meteor-M» No. 2) and MSU-GS («Electro-L» No. 2) instruments and atmospheric correction for the MSU-MR instrument is given. The importance of these procedures for obtaining thematic products, such as maps of cloud and snow cover, as well as vegetation indices, which are actively used in the analysis and problem-solving for agricultural tasks, is indicated. Far-Eastern Center of State Research Center for Space Hydrometeorology «Planeta» plans to further develop the procedures for preliminary and thematic processing of information from Russian satellite instruments of low and medium resolution, which would increase the potential for the use of satellite data for agriculture.
A comprehensive assessment of tomato collection varieties by yield and parameters of adaptability in monsoon climate conditions
Authors: Kuzmitskaya G A , Kuliakina N V 
Published: August 2020

Abstract
Tomatoes are one of the most common vegetable crops in the Khabarovsk territory. This article presents the results of an agrobiological study of tomato collection varieties taken from the Vavilov Institute’s collection of crop production genetic resources of various ecological and geographical origin. The research identified varieties of the intensive type that can provide a maximum yield at a high level of agricultural technology: Denmark, Skorospelka, Chico Grande, Vitaminnyi, Vezha, Slava Moldova and Novoseletsky. It also identified the most valuable varieties for practical breeding: Skorospelka, Dokuchaevsky, Dragotsennost’, Vitaminnyi from Russia, Vezha from Belarus, Novoseletsky from Ukraina, Denmark and Chico Grande from USA, which combine high indicators of marketable productivity and high adaptability to the conditions of the monsoon climate of the Middle Amur region.
Reindeer breeding in the Chukchi Autonomous District and the basic directions of its stabilization
Authors: Bryzgalov G Ya , Kuzmin A M , Kudrjavcev A V 
Published: August 2020

Abstract
The characteristic of the condition of northern reindeer breeding in the eastern sector of the Arctic, the number of deers on farms, around administrative and geographical areas of the territory is given. The factors which affect the economic efficiency of the industry, production, the main reasons for the unproductive waste of deers are noted. In modern conditions, reindeer husbandry performs a number of important economic and social functions. There are three different points of view on the development of reindeer husbandry. In the first economic aspect, reindeer husbandry is considered as a commodity business in the northern economy. In the second aspect, reindeer husbandry is considered as an ethno-saving industry, the way of life associated with the traditional economic activities of the native population of the North, which provides its employment. The third approach means the ethnocultural development of reindeer husbandry, which creates opportunities for the tourism business development - ethnocultural tourism. The main directions of improving the productive and social infrastructure of the industry, ways of innovative development, and solving the personnel problem are proposed.
Determination of indicators affecting the cross-country capacity of machine-tractor units
Authors: Sennikov V A , Lontseva I A , Soboleva H V 
Published: August 2020

Abstract
This study provides an assessment of the traction-coupling qualities of the machine-tractor unit consisting of the Belarus 1221 tractor and the Unia MX1600 mineral fertilizer dispenser. The quantitative evaluation is carried out through the cross-country coefficient. The characteristic of cross-country capacity with different soil conditions on the horizontal section is shown, and it is established that during operation on feeding along seedlings the machine has a sufficient cross-country capacity. At operation on rough relief the passability at speeds up to 8 m/s decreases by 25%. The cross-country ratio depends on the internal tyre pressure. With a drop in pressure from 1.8 to 0.8 kg/cm2, there is an increase in cross-country capacity on any kind of soil. In general, it has been found that the machine-tractor unit has a sufficient reserve of cross-country capacity.
Role of soil liming in increasing crop yields in crop rotation
Authors: Sinegovskaya V T , Banetskaya E V , Boiarskii B S , Sinegovskii M O , Nikulchev K A 
Published: August 2020

Abstract
These studies were conducted on the effects of new converter slag fertilizer (complex mineral fertilizer, limestone, soil ameliorant) for land reclamation, provided by the Japanese agricultural chemical manufacturer, containing 37.3% of CaO and 18.0% of MgO, on two types of soil in the Amur Region (Russia). About 85% of arable land has a high acidity (pHKCl ≤ 5.5) in the region. Therefore, the need for the use of land reclamation in the region is high. Studies aimed to establish the effect of various doses of the slag fertilizer on the change in the acidity of brown forest and meadow chernozem-like (Amur prairie) soils, as well as increase the yield of soybean and wheat in crop rotation. The experimental scheme was tested in doses of the limestone from 1 to 4 t/ha on the background of nitrogen-phosphorus fertilizer. The application of studied mineral fertilizer ensured a decrease in soil acidity by 0.05-0.30 (pHKCl) units by increasing of exchangeable Ca2+ and Mg2+ ions in soil exchange complex. The result was an increase in soybean yield by 0.18-0.45 t/ha and an increase in seed quality. Based on the results, fertilizer was recommended in doses of 2 to 4 t/ha, depending on the type of soil.
Modelling soybean yield for the early prediction in the Russian Far East using remote sensing data
Authors: Stepanov A S , Dubrovin K N 
Published: August 2020

Abstract
The paper presents an assessment of the model for predicting soybean yield at the level of municipalities in the Far East for the Oktyabrskiy and Leninskiy districts of the Jewish Autonomous Region, as well as the Khabarovsk and Vyazemskiy districts of Khabarovsk Territory. The share of soybean in the total arable land structure of these municipalities in 2018 ranged from 58% to 97%. According to 2010–2018 data, regression models were constructed for each region. The model used statistical data on district soybean yield, as well as data from remote sensing of the Earth. The values of the maximum NDVI (Normalized Difference Vegetation Index) of arable land and the growing duration at the week that reached maximum NDVI were used as independent variables in the regression model. We used weekly NDVI composites obtained for delineated arable lands through the Vega-Science system. According to long-term observations, it was found that in the study area the maximum NDVI was reached in weeks 30–33 (end of July to mid-August). The RMSE for different regions ranged from 0.06 to 0.15 t/ha, and the MAPE did not exceed 10%. The developed model can be used for predicting soybean yield and planning export operations by farms and territorial authorities.
Rowan species Sorbus amurensis Koehne as a prospective source of plant raw materials for the pharmaceutical and food industries
Authors: Stepanova T A , Matyushchenko N V 
Published: August 2020

Abstract
Rowan fruit is widely used in Russia as a stock for pharmaceutical and food industries. The only officinal species which fruits are harvested for pharmaceuticals is Sorbus aucuparia L. In the Far East it is substituted by the vicarious species of rowan Sorbus amurensis Koehne. The paper presents data on discriminating the fruits of both species of rowan based on macroscopic and microscopic identification, and on the content of biologically active compounds. The studies have proved no fundamental difference between the species. It was shown that there is no significant difference in the average values of ascorbic acid, organic acids and oxidizable substances in representative fruits samples of both rowans. The average content of flavonoids and hydroxycoric acids is reliably higher in the fruits of S. amurensis Koehne, although incidentally. It is shown that S. amurensis Koehne is not inferior to S. aucuparia
L.in its main characteristics and can be considered a promising species to be used in the pharmaceutical and food industries along with the officinal species of rowan.
The influence of micronutrients on the productivity of corn during cultivation on green mass in the southern zone of Amur region
Authors: Kalashnikov N P , Tikhonchuk P V , Fokin S A 
Published: August 2020

Abstract
The following paper reviews the results of 2017-2019 studies of the influence of types and methods of micronutrient fertilizers application: zinc sulfate, cobalt sulfate and ammonium molybdate on the growth, development and productivity of corn. The studies were conducted in the southern agricultural zone of Amur region on the experimental field of Far Eastern State Agrarian University, located in the village of Gribskoye (Blagoveshchensk district). The object of research was a hybrid Mashuk 175MV (FAO 170) - an early-ripening three-linear hybrid of universal use. Treatment of seeds and plants of corn by microfertilizers was carried out using a solution with a concentration of 0.1%. As a result of studies, it was found that the use of microfertilizers during plants vegetation more effectively affects the accumulation of dry matter than seeds treatment and double treatment of seeds and vegetative plants. When seeds treatment, the most effective variant is the combined use of microelements and when treatment during vegetation is the variant with using cobalt. The use of microfertilizers showed a significant increase in leaf surface area for all variants relative to the background variant. The greatest effect was shown by the variant with the use of cobalt in the seeds treatment and spraying vegetation of plants. The combined use of microfertilizers in the seeds treatment and spraying during vegetation has shown a good increase the yield of green mass of corn. The greatest effect was shown in seeds treatment by cobalt and spraying the plants during vegetation.
On the issue of model elaboration for the involvement of long-unused land in the agricultural circulation of Khabarovsk Territory
Authors: Vdovenko A V , Vdovenko V A , Kim L V , Lipina L N 
Published: August 2020

Abstract
Agricultural production is the basis of food security; therefore, the main task of government should be to maintain agricultural production through the efficient use of the main resource - agricultural land. Over the last decades there has been a decrease of agricultural land in the region by 2.7%, arable land – by 8.9% and an increase of set aside land by 27.6%. There are significant areas of land not involved in agricultural circulation in the region. Moreover, many of these areas are currently open for citizens to choose a plot under the “Far Eastern Hectare” program using federal information system “To the Far East”. The article considers elaboration of a model to involve long-unused land in agricultural circulation and to identify promising methods of their use.
Effect of parent selection and crosses of Pyrus ussuriensis on the early-bearing ability of F1 progenies
Authors: Wang Qiang , Zhang Maojun , Lu Mingyan , Wu Chunhao , Yan Xingkai , Li Honglian , Ding Lihua 
Published: August 2020

Abstract
In order to investigate the effect of combinations of different pear varieties and their descendants and other cultivated pear varieties on the early fruiting of F1 generation, the individual plant Numbers of F1 generation of 17 hybrid combinations were investigated. The results showed that: 17 combinations of 1175 hybrid seedlings, 15 combinations of fruit age in 6∼8 years, 8 years of birth there are two combinations of Hanxiangli×Jinxiangshui, Dacili× Eli1 did not blossom. Among the flowering combinations, there were differences among different maternal combinations. The flowering plant rate of the combination with Dacili as the parent was the highest, which was 12.14%.Hanxiangli was the second 9.42%.Jinxiangshui was the lowest 6.43%.There were significant differences in the number of flowering plants in the offspring population in different combinations of maternal parent and paternal parent, indicating that parental parent had a significant influence on the age of bearing fruit in the hybrid population. There was a big difference in the age of the first fruit in F1 generation in the combination of pear varieties in other cultivation systems. However, the progeny of the parent and parent groups of Pyrus ussuriensis had a lower flowering individual plant, and the combination of Pyrus ussuriensis×Pyrus ussuriensis was zero. It can be seen that the seed sex of Pyrus ussuriensis has a great influence on the early and late fruit age of offspring.