scholarly journals Effects of Biochar Derived from Maize Stover and Rice Straw on the Early Growth of their Seedlings

2014 ◽  
Vol 2 (5) ◽  
pp. 232 ◽  
Author(s):  
Alie Kamara
Keyword(s):  
Rice Straw ◽  
Early Growth ◽  
Maize Stover

Production and utilization of crop residues for ruminant feeding in Aliero Lga Of Kebbi State, Nigeria

2020 ◽  
Vol 18 (1) ◽  
pp. 31-38
Author(s):  
M.A. Muftau ◽  
A.A. Kwaido ◽  
M.S. Ayuba ◽  
N. Kadi ◽  
A. Tambuwal ◽  
...  
Keyword(s):  
Local Government ◽  
Rice Straw ◽  
Frequency Distribution ◽  
Major Part ◽  
Crop Residues ◽  
Flock Size ◽  
Statistical Tool ◽  
Maize Stover ◽  
Self Production ◽  
Land Size

An investigation of the production and utilization of crop residues for ruminant feeding in five villages within Aliero Local Government Area of Kebbi State was carried out using a structured questioner which was administered to 75 respondents. The data collected was analyzed by using simple statistical tool such as frequency distribution and percentage. The study revealed that 47.95% of the respondents were farmers with more than half (52.41%) had 5-8 members in their family. Mixed farming is common to all the respondents with cereal and legumes crops combination alongside with cattle, sheep, and goats rearing. Some crop residues such as maize stover, rice straw, etc are available all year round since they are generated both at rainy and dry season in the study area. Maize/sorghum/millet stovers and groundnut/cowpea straws plays a major part in ruminant feeding in the study area. The level of cultivation, production and utilization of crop residues as observed in this study depends on the land size, season of production and flock size amongst others. Most of the respondents (39.74%) source their crop residues from self-production and the type of crop residues are those from groundnut/cowpea straws, maize/millet/sorghum stovers and rice straws. The present study revealed the potential of crop residues not only as ruminant feeding but also as a means of livelihood among the respondents. Keywords: Production, Utilization, Crop residues, Livestock.

Improving the feeding value of straws with Pleurotus ostreatus

2015 ◽  
Vol 55 (2) ◽  
pp. 241 ◽  
Author(s):  
N. A. Khan ◽  
S. Hussain ◽  
N. Ahmad ◽  
S. Alam ◽  
M. Bezabhi ◽  
...  
Keyword(s):  
Solid State ◽  
Rice Straw ◽  
Pleurotus Ostreatus ◽  
Crude Protein ◽  
Lignin Degradation ◽  
Crop Residues ◽  
Equal Proportion ◽  
Maize Stover ◽  
Feeding Value

The high content of lignin in cell walls is the major limiting factor in the digestion and utilisation of cereal crop residues by ruminants. The aim of this study was to evaluate the effectiveness of the white rot fungus, Pleurotus ostreatus (P. ostreatus), to degrade lignin and to enhance the rumen degradability of maize stover, rice straw, wheat straw and their mixture in equal proportion on a dry-matter (DM) basis. Four samples of each substrate were incubated aerobically in triplicate with P. ostreatus for 0 (Control), 21, 28 and 35 days under solid-state conditions (temperature, 24°C; humidity, 70 ± 5%). The changes in chemical composition, DM and nutrient losses, and rumen fermentation characteristics using in vitro DM digestibility (DMD) and the in vitro gas-production (GP) technique were measured. The results showed that incubation with P. ostreatus decreased (P < 0.001) the contents of neutral detergent fibre and lignin with a concomitant increase (P < 0.001) in the contents of ash and crude protein. The losses of nutrients differed (P < 0.001) among the straw types, with rice straw and maize stover showing the largest (P < 0.05) lignin degradation compared to wheat and mixed straws. The DMD and 72-h cumulative GP increased (P < 0.001) consistently with increasing fungal incubation period and for all substrates the highest values of DMD and GP were measured after 35 days of incubation with P. ostreatus. The lignin degradation was strongly associated with hemicellulose degradation (r = 0.71) across the various straws. Results of the present study demonstrated that incubation of low-quality crop residues with P. ostreatus under solid-state conditions upgrades their feeding value by reducing the content of lignin and increasing the content of crude protein and ruminal degradation.

scholarly journals Substrate in the emergence and initial growth of seedlings of Caesalpinia pulcherrima

2017 ◽  
Vol 47 (3) ◽  
Author(s):  
Magnólia Martins Alves ◽  
◽  
Edna Ursulino Alves ◽  
Luciana Rodrigues de Araújo ◽  
Maria de Lourdes dos Santos Lima ◽  
...  
Keyword(s):  
Rice Straw ◽  
Urban Forestry ◽  
Dry Weight ◽  
Early Growth ◽  
Seedling Development ◽  
Wood Dust ◽  
Initial Growth ◽  
Saw Dust ◽  
Vegetable Soil ◽  
Growth Of Seedlings

ABSTRACT: Caesalpinia pulcherrima is an exotic species belongs to the Fabaceae family commonly known as flamboyant-mirim, and widely used for urban forestry. This study aimed to evaluate the effect of different substrates on the emergence and early seedlings growth of C. pulcherrima . The experiment was conducted in a greenhouse belonging to the Centro de Ciências Agrárias, Universidade Federal da Paraíba. The experimental design was completely randomized and treatments had 14 substrates: sand, vegetable soil, vermiculite, wood dust, carbonized rice straw, vegetable soil + sand 1:1, sand + wood dust 1:1, sand + carbonized rice straw 1:1, earth + wood dust 1:1, vegetable soil + carbonized rice straw 1:1, vermiculite + sand 1:1, vermiculite + wood dust 1:1, vermiculite + earth 1:1 and vermiculite + carbonized rice straw 1:1. Evaluation of the effect of the treatments was through the following determinations: percentage of emergency, first count, index of germination speed, length and dry weight of roots and shoots. The vermiculite, vegetable soil + sand 1:1, vermiculite + sand 1:1, vermiculite + saw dust 1:1, are suitable for emergence and early growth of seedlings of Caesalpinia pulcherrima . Substrates saw dust and carbonized rice straw were responsible for the worst performers on emergence and seedling development.

scholarly journals Effect of Rice Straw Biochar on Soil Quality and the Early Growth and Biomass Yield of Two Rice Varieties

2015 ◽  
Vol 06 (08) ◽  
pp. 798-806 ◽  
Author(s):  
Alie Kamara ◽  
Hawanatu Sorie Kamara ◽  
Mohamed Saimah Kamara
Keyword(s):  
Soil Quality ◽  
Rice Straw ◽  
Biomass Yield ◽  
Early Growth ◽  
Rice Varieties ◽  
Rice Straw Biochar

Observations oh Nucleation and Growth of Voids in Nickel

1970 ◽  
Vol 28 ◽  
pp. 414-415
Author(s):  
J. L. Brimhall ◽  
H. E. Kissinger ◽  
B. Mastel
Keyword(s):  
High Purity ◽  
Growth Stage ◽  
Elevated Temperatures ◽  
Early Growth ◽  
Nucleation And Growth ◽  
Pure Nickel ◽  
Different Temperatures ◽  
Total Fluence ◽  
Neutron Exposure ◽  
Growth Of Voids

Some information on the size and density of voids that develop in several high purity metals and alloys during irradiation with neutrons at elevated temperatures has been reported as a function of irradiation parameters. An area of particular interest is the nucleation and early growth stage of voids. It is the purpose of this paper to describe the microstructure in high purity nickel after irradiation to a very low but constant neutron exposure at three different temperatures.Annealed specimens of 99-997% pure nickel in the form of foils 75μ thick were irradiated in a capsule to a total fluence of 2.2 × 1019 n/cm2 (E > 1.0 MeV). The capsule consisted of three temperature zones maintained by heaters and monitored by thermocouples at 350, 400, and 450°C, respectively. The temperature was automatically dropped to 60°C while the reactor was down.

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