Drilling Wastes Evaluated in Plant Growth Study

Author(s):  
B.S. Wilton ◽  
J.B. Bloys ◽  
R.D. Watts ◽  
B.W. Hipp
2020 ◽  
Vol 7 (1) ◽  
pp. 35-38
Author(s):  
Pavithra N ◽  
Shiva Subramani M ◽  
Balaganesh A S ◽  
RanjitKumar R ◽  
Dinesh K P B ◽  
...  

Herein, Ferric sulphide nanoparticles were prepared by co-precipitation (green synthesis) method.Structural study (XRD) confirms the crystalline nature of prepared Ferric sulphide nanoparticles. The crystallite size was estimated and it was found to ~2.0 nm. The surface morphology of the Fe2S3 nanoparticles shows the agglomeration and is sponge and dried algae like structure. EDS analysis reveals the presence of Fe, S, O and C elements in the prepared Ferric sulphide nanoparticles. FTIR spectrum of Ferric sulphide shows the characteristic peaks that confirms the presence of Fe and S in the sample. Moreover, the plant growth study proves that Ferric sulphide nanoparticles could be used as a fertilizer to enhance the agricultural production.


Author(s):  
S. Abirami ◽  
G. Gnanamuthu ◽  
D. Nagarajan

Background: The fishing sector plays an important role in the global economy. The development of this sector is related to environmental issues, in particular to waste management. Indeed, the quantity of the halieutic waste are considered at several thousand tons of waste a year. Waste management is a solution to maintain an area with ecological harmony, but still can produce economic benefits that are beneficial to social welfare. Chitinases are enzymes that degrade chitin. Chitinase contribute to the generation of carbon and nitrogen in the ecosystem from shrimp shell wastes. Chitin and chitosan are naturally-occurring compounds that have potential to be used in agriculture. The present study was designed to prepare the shrimp shell waste compost (SSC) and also to analyse the enhancement growth of Ladies finger plant by using shrimp shell waste compost (SSC), shrimp shell waste compost (SSC) +cow dung (CD) and along with coir pith (CP).Methods: This experiment was conducted within the period of 2017-2018 in Department of Microbiology, Kamaraj college, Thoothukudi. 1Kg of dried shrimp shell waste powder was used for the compost preparation using chitinolytic bacteria Bacillus licheniformis SSCL10. The present study shrimp shell wastes were composted into manure with adding chitinolytic Bacillus licheniformis SSCL10. After 90 days of composting, the compost was dried at room temperature and used as manure for plant study. The growth study of ladies finger (Abelmoschus esculents L.) was analyzed in shrimp shell compost and also along with other composts (SSC + CD and SSC + CD+CP).Result: In our study, nitrogen, phosphorus and potash content were increased in the shrimp shell composts (SSC) with adding chitinase producing bacterium (Bacillus licheniformis SSCL10) when compared with control soil. The maximum plant growth performances were showed in the SSC+CD (cow dung) compared to combination of CP (coir pith), shrimp shell composts (SSC) alone and control. So shrimp shell compost is used as supplements for other compost to induce plant growth performances.


1987 ◽  
Vol 27 (5) ◽  
pp. 643
Author(s):  
AM Thro

Stands of the highly nutritious, grazingtolerant pasture legume lotononis (Lotononis bainesil Baker) are often unreliable from year to year, in both favourable and suboptimal environments. An observed retreating pattern of lotononis growth resembles the effects of autotoxicity. A seedling germination experiment in the laboratory and an 11 -month greenhouse study of plant growth were conducted to determine if autotoxicity was a factor in the observed behaviour of lotononis. Treatments tested in these experiments were (i) soil infusions from sites where lotononis was growing vigorously, was dead or dying, or had never been grown; (ii) plant tissue infusions from healthy lotononis roots, healthy stolons and leaves ('shoots'), and dead and dying shoots; and (iii) lotononis roots and shoots mixed into and laid upon the soil in pots. In the seedling germination study, none of the treatments was significantly different (P<0.05) from a distilled-water control. In the plant growth study, plants in pots with lotononis roots mixed in the soil and lotononis shoots laid on the soil surface were significantly taller (5-12.8 cm height) and had significantly higher forage DM yields (10.02 g/plant) than plants in control pots (3-8.1 cm and 6.48 g/plant). The stimulating effect of lotononis plant residue on lotononis growth was probably due to additional nutrients and better water relations for plant growth. No evidence was found that autotoxicity is the cause of lotononis stand disappearance.


2015 ◽  
Vol 58 ◽  
pp. 61-70 ◽  
Author(s):  
Paul B. Larsen

Ethylene is the simplest unsaturated hydrocarbon, yet it has profound effects on plant growth and development, including many agriculturally important phenomena. Analysis of the mechanisms underlying ethylene biosynthesis and signalling have resulted in the elucidation of multistep mechanisms which at first glance appear simple, but in fact represent several levels of control to tightly regulate the level of production and response. Ethylene biosynthesis represents a two-step process that is regulated at both the transcriptional and post-translational levels, thus enabling plants to control the amount of ethylene produced with regard to promotion of responses such as climacteric flower senescence and fruit ripening. Ethylene production subsequently results in activation of the ethylene response, as ethylene accumulation will trigger the ethylene signalling pathway to activate ethylene-dependent transcription for promotion of the response and for resetting the pathway. A more detailed knowledge of the mechanisms underlying biosynthesis and the ethylene response will ultimately enable new approaches to be developed for control of the initiation and progression of ethylene-dependent developmental processes, many of which are of horticultural significance.


1993 ◽  
Vol 89 (1) ◽  
pp. 33-39 ◽  
Author(s):  
Jeff S. Kuehny ◽  
Mary C. Halbrooks

1994 ◽  
Vol 90 (4) ◽  
pp. 739-747 ◽  
Author(s):  
Diana Lee ◽  
Barbara A. Moffatt

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