scholarly journals Differential Fertilization and Nutritive Substrates Effect on the Flowering Degree of Pelargonium Zonale

2013 ◽  
Vol 70 (1) ◽  
pp. 141-149
Author(s):  
Camelia TOMOȘ ◽  
Marilena MÄ‚RGHITAȘ
Keyword(s):  
Root System ◽  
Irrigation System ◽  
Biochemical Process ◽  
Substrate Type ◽  
Pelargonium Zonale ◽  
Fertility Status ◽  
Beneficial Impact ◽  
Relative Acidity ◽  
Culture Technology

This paper presents researches regarding the effect of differential fertilization and nutritive substrates on the flowering degree of Pelargonium zonale species. Aim of this subject research resulted from the desire to conduct experiments that provide results with beneficial impact on geraniums crop, results allowing production of some quality plants, both in terms of aesthetics and plant health.Research followed the effect of differential fertilization and of nutritive substrates on the degree of geraniums flowering. The research focused on experiments designed to highlight favourable combinations of soil and fertilizer for geraniums development and particularly, favourable for flowering (the main ornamental quality). The types of substrate, fertilizers, pH varies depending on the type of crop, the substrate and the source of fertilizer and can be affected by the source of water and the type of irrigation system. Relative acidity or alkalinity of the substrate type affects directly the availability of nutrients in the plants root system. By applying the fertilizers, amendments and culture technology can be changed, to a large extent, the direction of the chemical and biochemical process from soil as well as the fertility status.

scholarly journals Rooting in the Desert: A Developmental Overview on Desert Plants

Genes ◽  
2021 ◽  
Vol 12 (5) ◽  
pp. 709
Author(s):  
Gwendolyn K. Kirschner ◽  
Ting Ting Xiao ◽  
Ikram Blilou
Keyword(s):  
Root System ◽  
Developmental Plasticity ◽  
Root System Architecture ◽  
Desert Plants ◽  
Root Cortex ◽  
Date Palms ◽  
Beneficial Impact ◽  
Scarce Water ◽  
Sessile Organisms ◽  
Secondary Roots

Plants, as sessile organisms, have evolved a remarkable developmental plasticity to cope with their changing environment. When growing in hostile desert conditions, plants have to grow and thrive in heat and drought. This review discusses how desert plants have adapted their root system architecture (RSA) to cope with scarce water availability and poor nutrient availability in the desert soil. First, we describe how some species can survive by developing deep tap roots to access the groundwater while others produce shallow roots to exploit the short rain seasons and unpredictable rainfalls. Then, we discuss how desert plants have evolved unique developmental programs like having determinate meristems in the case of cacti while forming a branched and compact root system that allows efficient water uptake during wet periods. The remote germination mechanism in date palms is another example of developmental adaptation to survive in the dry and hot desert surface. Date palms have also designed non-gravitropic secondary roots, termed pneumatophores, to maximize water and nutrient uptake. Next, we highlight the distinct anatomical features developed by desert species in response to drought like narrow vessels, high tissue suberization, and air spaces within the root cortex tissue. Finally, we discuss the beneficial impact of the microbiome in promoting root growth in desert conditions and how these characteristics can be exploited to engineer resilient crops with a greater ability to deal with salinity induced by irrigation and with the increasing drought caused by global warming.

Effects of Irrigation Rate and Media on Growth of Acer rubrum L. in Large Containers

1989 ◽  
Vol 7 (1) ◽  
pp. 38-40
Author(s):  
Chris A. Martin ◽  
Harry G. Ponder ◽  
Charles H. Gilliam
Keyword(s):  
Root Growth ◽  
Root System ◽  
Irrigation System ◽  
Acer Rubrum ◽  
Height Growth ◽  
Sand Content ◽  
Secondary Root ◽  
Irrigation Rate ◽  
Media Types ◽  
Second Year

Abstract Acer rubrum L. seedlings were grown in 38 1 (# 10) containers with 4 irrigation rates of 50%, 100%, 200%, 400% replacement of net evaporation and 3 media types of 100% pine bark; pine bark:sand (4:1 by vol); pine bark:sand (3:2 by vol). A spray stake irrigation system was used to irrigate. Height growth was not affected by irrigation rate. Caliper growth increased cubicly and linearly with increased irrigation rate during the first and second years, respectively. Media affected height and caliper growth the second year only. Height and caliper growth increased linearly with increased sand content. An increase in irrigation rate produced a larger root system, while an increase in sand content increased primary and secondary root growth.

Distribution of secoiridoid glycosides in the root system of the medicinal plant Gentiana lutea L. subsp. aurantiaca

2017 ◽  
Author(s):  
Ó González-López ◽  
S Mayo ◽  
Á Rodríguez-González ◽  
G Carro-Huerga ◽  
V Suárez Villanueva ◽  
...  
Keyword(s):  
Medicinal Plant ◽  
Root System ◽  
Gentiana Lutea ◽  
Secoiridoid Glycosides

To the issue of water treatment by hydrocyclone on the systems of the combined irrigation

2020 ◽  
Vol 0 (2) ◽  
pp. 21-25
Author(s):  
Nikolay Dubenok ◽  
Andrey Novikov ◽  
Sergei Borodychev ◽  
Maria Lamskova
Keyword(s):  
Water Treatment ◽  
Organic Compounds ◽  
Irrigation Water ◽  
Irrigation System ◽  
Petroleum Products ◽  
Cylindrical Part ◽  
Agricultural Landscapes ◽  
Treatment Unit ◽  
Drain Pipe ◽  
Irrigation Network

At the stage of water treatment for irrigation systems, the efficiency capture coarse and fine mechanical impurities, as well as oil products and organic compounds affects the reliability of the equipment of the irrigation network and the safety of energy exchange processes in irrigated agricultural landscapes. The violation of work irrigation system can cause disruptions in irrigation schedules of agricultural crops, crop shortages, degradation phenomena on the soil and ecological tension. For the combined irrigation system, a water treatment unit has been developed, representing a hydrocyclone apparatus with a pipe filter in the case. For the capacity of 250 m3/h the main geometrical dimensions of hydrocyclone have been calculated. To organize the capture petroleum products and organic compounds, it has been proposed a modernization of a hydrocyclone unit, consisting in dividing the cylindrical part of the apparatus into two section. The first is section is for input irrigation water, the second one is for additional drainage of clarified irrigation water after sorption purification by the filter, placed on the disk and installed coaxially with the drain pipe and the pipe filter.

MEMAHAMI RELIEF-RELIEF PADA CANDI-CANDI KERAJAAN-KERAJAAN KEDIRI, SINGASARI DAN MAJAPAHIT DI JAWA TIMUR

Jurnal SCALE ◽  
2019 ◽  
Vol 6 (2) ◽  
pp. 24
Author(s):  
Sri Pare Eni
Keyword(s):  
Life Story ◽  
The Temple ◽  
Culture Technology

Architecture of the ancient kingdoms of Kediri, Singasari and Majapahit, have the same  religion that is Hindu and Buddhist shrines, which requires either a temple. Each temple has a good difference in the environment, culture technology, function, and form of the building.The method of the description will be used here to be able to give you an idea of the temple reliefs in details.Each temple has a different relief and can be found on the head / body / foot which tells about the life story or series, or legend of a moral message containing the story.

Spray irrigation on dairy pastures - efficient or not?

2006 ◽  
pp. 177-181
Author(s):  
S.M. Thomas ◽  
D. Bloomer ◽  
R.J. Martin ◽  
A. Horrocks
Keyword(s):  
Irrigation System ◽  
Groundwater Resources ◽  
Dairy Farmers ◽  
Large Variability ◽  
Irrigation Application ◽  
Irrigation Uniformity ◽  
Survey Results ◽  
Spray Irrigation ◽  
Use Efficiency ◽  
Distribution Uniformity

Applying water efficiently is increasingly important for dairy farmers and other users of surface and groundwater resources to maintain sustainable production. However, irrigation is rarely monitored. We used a questionnaire survey and measurements of five spray irrigation systems working in normal farm conditions to make observations on how efficiently irrigation is being managed. Survey results from 93 dairy farmers showed that, although the farmers believe they know how much water is being applied during irrigation, only 60% make measurements, and about 18% measure irrigation uniformity. Catch-can measurement of irrigation application depth for the different spray systems indicated large variability in application depths during irrigation, and field distribution uniformity ranged greatly between the different systems, decreasing in the order of centre pivots >travelling irrigators> K-line. Changes in irrigation system settings were sometimes made without considering application depths or uniformity. If our five case studies are typical, they may explain the large range of seasonal irrigation amounts recorded in the survey. We recommend that farmers monitor irrigation application depths and uniformity to help manage irrigation water efficiently and to help them estimate the value of irrigation to their enterprise. Keywords: distribution uniformity, water use efficiency, catch cans

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