The decomposition of the leaf mulches ofLeucaena leucocephala Gliricidia sepium andFlemingia macrophylla under humid tropical conditions

1988 ◽  
Vol 7 (1) ◽  
pp. 33-45 ◽  
Author(s):  
Arnoud Budelman
Keyword(s):  
Gliricidia Sepium ◽  
Tropical Conditions ◽  
Leaf Mulches

scholarly journals The Effects of Arbuscular Mycorrhizal Fungal Inoculation and Mulch of Contrasting Chemical Composition on the Yield of Cassava under Humid Tropical Conditions

2010 ◽  
Vol 10 ◽  
pp. 505-511 ◽  
Author(s):  
Iniobong E. Okon ◽  
M. G. Solomon ◽  
O. Osonubi
Keyword(s):  
Mycorrhizal Fungus ◽  
Arbuscular Mycorrhizal ◽  
Gliricidia Sepium ◽  
Southwestern Nigeria ◽  
Senna Siamea ◽  
Nutrient Contents ◽  
Tropical Conditions ◽  
Leaf Mulch ◽  
Arbuscular Mycorrhizal Fungal ◽  
Fungal Inoculation

The influence of arbuscular mycorrhizal fungus (AMF),Glomus deserticola, and leaf mulch fromGliricidia sepiumand Senna siamea on the yield of cassava (Manihot esculenta) in a degraded alfisol of southwestern Nigeria was investigated. Inoculation in conjunction with mulching increased cassava tuber yield by 40–278% over the control. The highest yield was obtained withG. sepiumandS. siameamulch applied together in equal proportions. The results are explained in the light of the growth-enhancing effects of AMF, encouraged by the ameliorating effects of mulch on the soil structure and nutrient contents.

Phytochemical Studies And Antibacterial Investigations on Gliricidia Sepium

2012 ◽  
Vol 3 (1) ◽  
pp. 12-13 ◽  
Author(s):  
D. Sukumar D. Sukumar ◽  
◽  
C. Aparna C. Aparna
Keyword(s):  
Gliricidia Sepium ◽  
Phytochemical Studies

Properties of Gliricidia Wood (Gliricidia sepium) lntercropped with Cocoa (Theobroma cocoa) in Malaysia

2014 ◽  
Vol 11 (1) ◽  
pp. 51
Author(s):  
Mohd Helmy Ibrahim ◽  
Mohd Nazip Suratman ◽  
Razali Abd Kader
Keyword(s):  
Cell Wall ◽  
Specific Gravity ◽  
Moisture Content ◽  
Wall Thickness ◽  
Age Groups ◽  
Gliricidia Sepium ◽  
Cell Wall Thickness ◽  
Tree Age ◽  
Lumen Diameter ◽  
Significant Difference

Trees planted from agroforestry practices can become valuable resources in meeting the wood requirements of many nations. Gliricidia sepium is an exotic species introduced to the agricultural sector in Malaysia mainly for providing shade for cocoa and coffee plantations. This study investigates its wood physical properties (specific gravity and moisture content) and fibre morphology (length, lumen diameter and cell wall thickness) of G. sepium at three intervals according to age groups ( three, five and seven years of ages). Specific gravity (0.72) was significantly higher at seven years ofage as compared to five (0.41) and three (0.35) years age group with a mean of 0.43 (p<0.05). Mean moisture content was 58.3% with no significant difference existing between the tree age groups. Fibre diameter (22.4 mm) was significantly lower (p<0.05) for the trees which were three years of age when compared to five and seven years age groups (26.6 mm and 24. 7 mm), respectively. Means of fibre length, lumen diameter and cell wall thickness were 0.83 mm, 18.3 mm, and 6.2 mm, respectively, with no significant differences detected between trees in all age groups. Further calculation on the coefficient of suppleness and runkel ratio suggest that wood from G.sepium may have the potential for insulation board manufacturing and paper making. However, future studies should experiment the utilisation of this species for these products to determine its full potential.

MITIGASI LAHAN TERDEGRADASI AKIBAT PENAMBANGAN MELALUI REVEGETASI

2019 ◽  
Vol 11 (2) ◽  
pp. 50-60
Author(s):  
E. Hanggari Sittadewi
Keyword(s):  
Gliricidia Sepium ◽  
Paraserianthes Falcataria ◽  
Fast Growing ◽  
Sesbania Grandiflora

Salah satu dampak negatif dari aktifitas penambangan adalah terjadinya degradasi lahan. Degradasi lahan ditandai dengan menurunnya kondisi fisik, kimia dan biologi. Mitigasi atau upaya pencegahan harus dilakukan agar tidak berlanjut ke kondisi yang lebih parah. Revegetasi adalah langkah yang dapat dilakukan untuk mitigasi lahan terdegradasi tersebut. Keberhasilan revegetasi tergantung pada pemilihan vegetasi yang adaptif dan cepat tumbuh sesuai dengan karakteristik tanah, iklim dan kegiatan pasca  penambangan. Selain itu perbaikan kondisi fisik, kimia dan biologi lahan juga ikut menentukan keberhasilan revegetasi. Beberapa jenis tanaman cepat tumbuh (Fast Growing Plant) yang umum digunakan untuk revegetasi adalah sengon laut (Paraserianthes falcataria), akasia (Acasia mangium, Acasia crassicarpa), Lamtoro (Leucaena glauca), turi (Sesbania grandiflora), gamal (Gliricidia sepium). Selain tanaman cepat tumbuh, tanaman lokal juga menjadi pilihan untuk revegetasi. Keberhasilan revegetasi akan meningkatkan kadar bahan organik dan memperbaiki siklus hara serta meningkatkan jumlah dan aktifitas mikroba. Hal ini akan memperbaiki kondisi fisik, kimia dan biologi sehingga degradasi lahan pasca penambangan tidak terjadi lebih buruk.

Comparative study of domestic wastewater treatment efficiencies between facultative pond and water spinach pond

1995 ◽  
Vol 32 (3) ◽  
pp. 263-270 ◽  
Author(s):  
Seni Karnchanawong ◽  
Jaras Sanjitt
Keyword(s):  
Growth Rates ◽  
Domestic Wastewater ◽  
Pilot Scale ◽  
Organic Content ◽  
Water Spinach ◽  
Removal Rates ◽  
Mass Removal ◽  
Loading Rates ◽  
Tropical Conditions ◽  
Average Water

Two pilot-scale studies were comparatively conducted under tropical conditions during December 1992 to September 1993. One study involved facultative ponds(FP) and the others water spinach ponds(SP). Four rectangular concrete ponds, 0.8 m × 2.4 m × 1.1 m (width × length × depth), were employed to treat the Chiang Mai University campus wastewater. Water spinach (Ipomoea aquatica) was planted in two of the ponds. The influent characteristics noted showed a low organic content, i.e. BOD 25.4-29.9 mg/l, with BOD:N ratio around 1:1. The investigations were conducted using the following hydraulic retention times (HRT): 1.6, 2, 2.7, 4, 8 and 16 d. The results showed that the BOD, COD and SS mass removal rates increased as the mass loading rates increased and the SP was significantly more effective in reducing the organic content than the FP. No relationship was found between TN mass removal and the loading rates. However, the TP mass removal rates in the SP and the FP were rather low and were considered to be insignificant. It was observed that SS accumulated in the water spinach root systems which tended to act as a strainer. This process led to plant growth inhibition and finally die-off. The average water spinach growth rates varied from 37 to 107 g wet wt./(m2.d) and no relationship was established between the growth rates and the HRT.

A simple design and operation for the anaerobic treatment of highly concentrated swine waste in the tropics

1995 ◽  
Vol 32 (12) ◽  
pp. 91-97 ◽  
Author(s):  
P. Y. Yang ◽  
M. Kuroshima
Keyword(s):  
Treatment Process ◽  
Total Solid ◽  
Anaerobic Treatment ◽  
Solid Content ◽  
Total Solid Content ◽  
Treatment Processes ◽  
Tropical Conditions ◽  
Biological Reaction ◽  
The Tropics ◽  
Small Producers

In order to develop a simple operation for an anaerobic treatment process for highly concentrated pig wastewater for small producers, a three-stage anaerobic treatment process was investigated. The system provided a series of mixing, homogenization, biological reaction and final stabilization of concentrated pig waste (total solid content of 8–10%). The process provided a stable operational performance, simple operational procedure and well stabilized sludge effluent. It was also found that the system is economically feasible in Hawaii. Compared to the other treatment processes for highly concentrated pig waste, this process is considered as an appropriate alternative for the application of the small producers in land limited and tropical conditions. Also, the present treatment system can be easily developed into a prefabricated package plant which can minimize the on-site labor and building costs.

Rumen Metabolite of Balinese Cows that Being Given Stewed Water of Lannea coromandelica Peel as Feed Additive

2017 ◽  
Vol 3 (5) ◽  
pp. 24 ◽  
Author(s):  
Sio Stefanus ◽  
I.G. Mahardika ◽  
I.B.G Partama ◽  
N.N. Suryani
Keyword(s):  
Acetic Acid ◽  
Fatty Acid ◽  
Rice Bran ◽  
Volatile Fatty Acid ◽  
Gliricidia Sepium ◽  
Feed Additive ◽  
Random Design ◽  
Lannea Coromandelica

The research has been conducted to find out rumen metabolite of Balinese cows that being given stewed water of Lannea coromandelica peel as a feed additive. The research used group random design (RAK) with 4 treatments of rations and 3 times repetition. Each repetition used three Balinese cows. The weight of cows being used ranging between 137.5 – 235 kg. Basic rations being given were equal, arranged based on a percentage of dry material (% DM) namely: 50% of arrow grass, 20% of gamal leaves (Gliricidia sepium), 1% of urea and 29% of rice bran. Whereas for treatment was feed additive level. The basic ratio of +0 was feed additive (A). The basic ration of +1000 ml was feed additive (B). The basic ration of +1500 ml was feed additive (C) and a basic ration of +2000 ml was feed additive (D). Variables being observed were: N-NH3, volatile fatty acid total and volatile fatty acid partial (acetic acid, propionate acid and butyrate acid). The result of research showed that the administration of 1000 ml-2000 ml of feed additive of stewed water of Lannea coromandelica peel in basic ration differed markedly (P<0.05) to increase the concentration of N-NH3, volatile fatty acid total and volatile fatty acid partial. The utilization of stewed water of Lannea coromandelica peel as a feed additive in basic ration was increasing rumen metabolite of Balinese cows.

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