Freeform path fitting for the minimisation of the number of transitions between headland path and interior lanes within agricultural fields

Background: Recently, researchers have given more and more consideration to natural polysaccharides thanks to their huge properties such as stability, biodegradability and biocompatibility for food and therapeutics applications. Methods: a number of enzymatic and chemical processes were performed to generate bioactive molecules, such as low molecular weight fractions and oligosaccharides derivatives from algal polysaccharides. Results: These considerable characteristics allow algal polysaccharides and their derivatives such as low molecular weight polymers and oligosaccharides structures to have great potential to be used in lots of domains, such as pharmaceutics and agriculture etc. Conclusion: The present review describes the mains polysaccharides structures from Algae and focuses on the currents agricultural (fertilizer, bio-elicitor, stimulators, signaling molecules and activators) and pharmaceutical (wound dressing, tissues engineering and drugs delivery) applications by using polysaccharides and/or their oligosaccharides derivatives obtained by chemical, physical and enzymatic processes.

Download Full-text

The Chemistry of Triazine Isomers: Structures, Reactions, Synthesis and Applications

Mini-Reviews in Medicinal Chemistry ◽

10.2174/1389557520666200729160720 ◽

2020 ◽

Vol 20 ◽

Author(s):

Neelottama Kushwaha ◽

C S Sharma

Keyword(s):

Basic Property ◽

Electrophilic Substitution ◽

Antimicrobial Agents ◽

Resonance Energy ◽

Heterocyclic Ring ◽

Ring System ◽

Agricultural Fields ◽

Substitution Reactions ◽

Anti Cancer ◽

Benzene Structure

: Triazine is the six-membered heterocyclic ring containing three nitrogen which replaces carbon-hydrogen unit in the benzene ring. Based on nitrogen position present in the ring system, it is categorized in three isomeric forms i.e.1, 2, 3-triazine (vicinal triazine), 1, 2, 4-triazine (asymmetrical triazine or isotriazine) and 1, 3, 5-triazine (symmetrical or s-triazine or cyanidine). Triazines have weakly basic property. Its isomers have much weaker resonance energy than benzene structure, so nucleophilic substitution reactions are more preferred than electrophilic substitution reactions. Triazine isomers and their derivatives are known to play important roles possessing various activities in medicinal and agricultural fields such as anti-cancer, antiviral, fungicidal, insecticidal, bactericidal, herbicidal, antimalarial and antimicrobial agents.

Download Full-text

The research study in the convergence of the results of processing radar images Sentinel-1A with field observations of agricultural sites

Geodesy and Cartography ◽

10.22389/0016-7126-2019-950-8-52-58 ◽

2019 ◽

Vol 950 (8) ◽

pp. 52-58

Author(s):

D.V. Mozer ◽

Е.L. Levin ◽

A.K. Satbergenova

Keyword(s):

Satellite Remote Sensing ◽

Satellite Images ◽

Research Study ◽

High Accuracy ◽

Agricultural Fields ◽

Field Observations ◽

Radar Images ◽

The Earth ◽

Radar Satellite ◽

Modern Technologies

The manuscript discusses how to monitor the condition of seedlings on agricultural fields planted with winter wheat, fodder maize and areas of fir forest located in the Freudenstadt district of Baden-Wuerttemberg in Germany. To solve the range of agricultural problems , they often use modern technologies such as satellite remote sensing of the Earth. The paper displays the monitoring results of the Sentinel-1A radar satellites scenes, as well as visual spectrum imagery of field observations are presented when leaving directly to terrain segments. The processing deployed data chain, consisting of 11 Sentinel-1A scenes acquired in the timefrane from March to November 2018. Specifically, the SNAP Sentinel Toolboxes software was used to process the radar satellite images Sentinel-1А, the. Based on the the research outcomes the Committee of Agriculture of the Freudenstadt district is able to predict the yield amount with high accuracy due to good data convergence. According to the study, the following three important problems can be resolved by means of Sentinel-1A imagery

Download Full-text

BLUE WATER FARMS: A WORKING PARTNERSHIP TO REDUCE NUTRIENT LOSSES FROM AGRICULTURAL FIELDS, LOWER GREEN RIVER WATERSHED, KENTUCKY

10.1130/abs/2018am-318675 ◽

2018 ◽

Author(s):

E. Glynn Beck ◽

◽

Mark J. Akland ◽

Dwayne Edwards ◽

Brad Lee

Keyword(s):

Agricultural Fields ◽

Blue Water ◽

Nutrient Losses ◽

Green River ◽

River Watershed

Download Full-text

Bird communities in a degraded forest biodiversity hotspot of East Africa

Biodiversity and Conservation ◽

10.1007/s10531-021-02190-y ◽

2021 ◽

Author(s):

Moses Mulwa ◽

Mike Teucher ◽

Werner Ulrich ◽

Jan Christian Habel

Keyword(s):

Tropical Forests ◽

Agricultural Land ◽

Bird Species ◽

Bird Communities ◽

Natural Forest ◽

Tree Plantations ◽

Agricultural Fields ◽

Degraded Forest ◽

Forest Patches ◽

Small Forest

AbstractTropical forests suffer severe habitat destruction. Thus, tropical forests frequently consist today of only a few small remnants that are often embedded within a matrix of agricultural fields and tree plantations. Forest specialist species have experienced severe population declines under these circumstances. We studied bird communities based on census plots set up in a near-natural forest block, as well as degraded forest patches, tree plantations, and agricultural fields, across the Taita Hills in southern Kenya. We classified each bird species according its ecology and behavior. We quantified the land cover and landscape configuration around each census plot. Typical forest species were mainly observed in the near-natural forest block, and to a lower extent in degraded forest patches. Plantations were almost devoid of birds. Bird communities of small forest fragments were more similar to that of agricultural land than the near-natural forest block. Most frugivorous, insectivorous and nectarivorous birds occurred in forest habitats, while granivorous bird species dominated the bird communities of agricultural land. The surrounding landscape had a marginal impact on bird species composition at local sites. Our study showed that the preservation of near-natural cloud forest, including small forest patches, is essential for the conservation of forest-dependent species, and that plantations do not serve as surrogate habitats.

Download Full-text