scholarly journals Use of Azolla as a growing medium component in the nursery production of olive trees

2015 ◽  
Vol 4 (4) ◽  
pp. 333 ◽  
Author(s):  
Raffaella Petruccelli ◽  
Caterina Briccoli Bati ◽  
Pietro Carlozzi ◽  
Giulia Padovani ◽  
Nadia Vignozzi ◽  
...  
Keyword(s):  
Chemical Properties ◽  
Olive Tree ◽  
Total Biomass ◽  
Physical And Chemical Properties ◽  
Azolla Filiculoides ◽  
Growing Media ◽  
Nursery Production ◽  
Media Component ◽  
Physical And Chemical ◽  
And Chemical Properties

<p>Peat is used in olive-tree nurseries as a component in commercial growing media. Environmental and economic pressures are questioning the use of peat as a component of substrates. In order to remain competitive and to satisfy environmental concerns, it is necessary to identify and evaluate possible alternatives to peat. This study involves the use of <em>Azolla filiculoides</em>, as a growing media component in olive nurseries (<em>Olea europaea</em> L.) for containerized plants. Four treatments were established, based on the addition of increasing quantities of Azolla (0%, 25%, 50%, and 100 %). Were determined some physical and chemical properties of media, the growth, the physiological parameters and nutritional state of olive plants. The physical and chemical properties of the media were significantly affected by the Azolla content. Nursery-produced olive plants grown in substrates supplemented by 50 % Azolla displayed linear growth and the total biomass production greater than those of the control medium. The research indicated that Azolla might be suitable substrate component for olive plants grown in containers.</p>

An examination of physical and chemical properties of urban biochar for use as growing media substrate

2016 ◽  
Vol 84 ◽  
pp. 49-58 ◽  
Author(s):  
Bhawana Bhatta Kaudal ◽  
Deli Chen ◽  
Dinesh Babu Madhavan ◽  
Adriana Downie ◽  
Anthony Weatherley
Keyword(s):  
Chemical Properties ◽  
Physical And Chemical Properties ◽  
Growing Media ◽  
Physical And Chemical ◽  
And Chemical Properties

scholarly journals Pengaruh Biochar terhadap Pertumbuhan Padi dalam Sistem Aerobik

2019 ◽  
Vol 3 (1) ◽  
pp. 44
Author(s):  
Suli Suswana
Keyword(s):  
Block Design ◽  
Poultry Litter ◽  
Chemical Properties ◽  
Total Biomass ◽  
Physical And Chemical Properties ◽  
Soil Function ◽  
Weathered Soils ◽  
Meta Analyses ◽  
Physical And Chemical ◽  
And Chemical Properties

<p>An application of biochar to the intensive weathered soils potentially can change physical and chemical properties of the soils, improved soil function and increased yield of crops. A meta-analyses evaluation showed a significant correlation between biochar and plants productivity,  that means there are benefits of biochar application to the soils on plants productivities, that was increased 10%.This experiment was used Randomized Completed Block Design with 8 treatments and 3 replications. The treatments are: contr), 20 ton biochar ha<sup>-1</sup>, 40 ton biochar ha<sup>-1</sup>, 50 ton biochar ha<sup>-1</sup>, 60 ton biochar ha<sup>-1</sup>, 10 ton biochar + 10 ton poultry litter ha<sup>-1</sup>, 20 ton biochar + 20 ton poultry litter ha<sup>-1</sup>, 30 ton biochar + 30 ton poultry litter ha<sup>-1</sup>.  The results showed biochar 20 ton ha<sup>-1</sup> could increase significantly of plant heigh, number of punicles per clump, and the weight dried straw per clump. Whereas, application combination 20-30 ton biochar ha<sup>-1</sup> + 20-30 ton poultry litter ha<sup>-1</sup> could increase amount of tillers per clump, amound of punicles per clump, and weight dried straw (total biomass) per clump significantly.</p>

scholarly journals Root and Shoot Modification by Irrigation

1998 ◽  
Vol 8 (4) ◽  
pp. 510-514 ◽  
Author(s):  
Daniel I. Leskovar
Keyword(s):  
Dry Matter ◽  
Chemical Properties ◽  
Root Initiation ◽  
Physical And Chemical Properties ◽  
Dry Matter Partitioning ◽  
Growing Media ◽  
Irrigation Methods ◽  
Physical And Chemical ◽  
And Chemical Properties

Irrigation methods, rates, timing, and frequency may influence the physical and chemical properties of the growing media thereby affecting root initiation, elongation, branching, development and dry matter partitioning between roots and shoots.

Statistical criteria of stellar population types

1966 ◽  
Vol 24 ◽  
pp. 101-110
Author(s):  
W. Iwanowska
Keyword(s):  
Stellar Population ◽  
Chemical Properties ◽  
Spectrophotometric Study ◽  
Physical And Chemical Properties ◽  
Population Type ◽  
The Galaxy ◽  
Distribution Parameters ◽  
Physical And Chemical ◽  
Statistical Criteria ◽  
And Chemical Properties

In connection with the spectrophotometric study of population-type characteristics of various kinds of stars, a statistical analysis of kinematical and distribution parameters of the same stars is performed at the Toruń Observatory. This has a twofold purpose: first, to provide a practical guide in selecting stars for observing programmes, second, to contribute to the understanding of relations existing between the physical and chemical properties of stars and their kinematics and distribution in the Galaxy.

Response of corn (Zea mays L.) to various organic-based fertilizers in marginal upland of Sta. Rita, Samar

2017 ◽  
pp. 31-43
Author(s):  
Berta Ratilla ◽  
Loreme Cagande ◽  
Othello Capuno
Keyword(s):  
Block Design ◽  
Management Strategies ◽  
Chemical Properties ◽  
Organic Fertilizers ◽  
Growth And Yield ◽  
Physical And Chemical Properties ◽  
Total N ◽  
Randomized Complete Block Design ◽  
Physical And Chemical ◽  
And Chemical Properties

Organic farming is one of the management strategies that improve productivity of marginal uplands. The study aimed to: (1) evaluate effects of various organic-based fertilizers on the growth and yield of corn; (2) determine the appropriate combination for optimum yield; and (3) assess changes on the soil physical and chemical properties. Experiment was laid out in Randomized Complete Block Design, with 3 replications and 7 treatments, namely; T0=(0-0-0); T1=1t ha-1 Evans + 45-30-30kg N, P2O5, K2O ha-1; T2=t ha-1 Wellgrow + 45-30-30kg N, P2O5, K2O ha-1; T3=15t ha-1 chicken dung; T4=10t ha-1 chicken dung + 45-30-30kg N, P2O5, K2O ha-1; T5=15t ha-1 Vermicast; and T6=10t ha-1 Vermicast + 45-30-30kg N, P2O5, K2O ha-1. Application of organic-based fertilizers with or without inorganic fertilizers promoted growth of corn than the control. But due to high infestation of corn silk beetle(Monolepta bifasciata Horns), its grain yield was greatly affected. In the second cropping, except for Evans, any of these fertilizers applied alone or combined with 45-30-30kg N, P2O5, K2O ha-1 appeared appropriate in increasing corn earyield. Soil physical and chemical properties changed with addition of organic fertilizers. While bulk density decreased irrespective of treatments, pH, total N, available P and exchangeable K generally increased more with chicken dung application.

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