The Effect of Cover Crops on Certain Physical and Chemical Properties of Onslow Fine Sandy Loam

1947 ◽  
Vol 11 (C) ◽  
pp. 47-49 ◽  
Author(s):  
M. H. McVickar ◽  
E. T. Batten ◽  
Ed Shulkcum ◽  
J. D. Pendleton ◽  
J. J. Skinner
Keyword(s):  
Cover Crops ◽  
Sandy Loam ◽  
Chemical Properties ◽  
Physical And Chemical Properties ◽  
Fine Sandy Loam ◽  
Physical And Chemical ◽  
And Chemical Properties

scholarly journals Physical properties and particle-size fractions of soil organic matter in crop-livestock integration

2012 ◽  
Vol 36 (4) ◽  
pp. 1299-1310 ◽  
Author(s):  
Carolina Tirloni ◽  
Antonio Carlos Tadeu Vitorino ◽  
Anderson Cristian Bergamin ◽  
Luiz Carlos Ferreira de Souza
Keyword(s):  
Organic Matter ◽  
Soil Quality ◽  
Crop Rotation ◽  
Cover Crops ◽  
Chemical Properties ◽  
Environmental Stability ◽  
Native Forest ◽  
Physical And Chemical Properties ◽  
Physical And Chemical ◽  
And Chemical Properties

Crop-livestock integration represents an interesting alternative of soil management, especially in regions where the maintenance of cover crops in no-tillage systems is difficult. The objective of this study was to evaluate soil physical and chemical properties, based on the hypothesis that a well-managed crop-livestock integration system improves the soil quality and stabilizes the system. The experiment was set up in a completely randomized design, with five replications. The treatments were arranged in a 6 x 4 factorial design, to assess five crop rotation systems in crop-livestock integration, and native forest as reference of soil undisturbed by agriculture, in four layers (0.0-0.05; 0.05-0.10; 0.10-0.15 and 0.15-0.20 m). The crop rotation systems in crop-livestock integration promoted changes in soil physical and chemical properties and the effects of the different systems were mainly detected in the surface layer. The crops in integrated crop-livestock systems allowed the maintenance of soil carbon at levels equal to those of the native forest, proving the efficiency of these systems in terms of soil conservation. The systems influenced the environmental stability positively; the soil quality indicator mineral-associated organic matter was best related to aggregate stability.

scholarly journals Assessment of Degradation Status of Soils in Selected Areas of Ogbomoso, Oyo State, Nigeria

2015 ◽  
Vol 59 ◽  
pp. 17-25
Author(s):  
Esther Abosede Ewetola ◽  
Folasade Mary Owoade ◽  
Olayinka Olakunle Olatunji
Keyword(s):  
Crop Residues ◽  
Sandy Loam ◽  
Chemical Properties ◽  
Conservation Strategies ◽  
Available Phosphorus ◽  
Physical And Chemical Properties ◽  
Surface Sampling ◽  
Study Sites ◽  
Physical And Chemical ◽  
And Chemical Properties

The assessment of degradation status of soils in selected areas of Ogbomoso, Oyo state wascarried out. The soil physical and chemical properties were evaluated using mini pits and surface sampling. The laboratory results obtained were compared with the standard indicators and criteria for land degradation assessment according to FAO, 1979. The results revealed that most of the cultivated parts of the study sites were very highly degraded compared to the soil under vegetative fallow which were moderately degraded. The textural class of the soil ranged from loamy sand to sandy loam. Saturated hydraulic conductivity ranged from 1.54 to 3.4 cm hr-1 corresponding low to moderate permeability. Bulk density ranged from 1.53 to 1.60 g cm-3. Organic matter was very low in all the study sites. Available phosphorus was low in all the locations. Total nitrogen was predominantly low in most of the cultivated and fallow soils. Exchangeable Sodium Percentage (ESP) of the sites depicted that most of the soils were slightly sodic. Summarily, the soil physical and chemical properties status when compared with the FAO standard show that the area either cultivated or fallow is under degradation. In order to optimize crop production in these areas, there may be need to introduce soil conservation strategies. The practice may include use of crop residues, green manure or poultry manure to boost soil fertility. Also regular monitoring of the fertility status of the soils is required.

scholarly journals Assessment of Some Wetland Potentials in Makurdi Supporting Rice and Sugarcane Production

2020 ◽  
Vol 9 ◽  
pp. 1-10
Author(s):  
Jacob Usman ◽  
J.O. Ogbu ◽  
S.E. Iji ◽  
S. Afatar
Keyword(s):  
Sandy Loam ◽  
Soil Depth ◽  
Chemical Properties ◽  
Clay Content ◽  
Physical And Chemical Properties ◽  
Type B ◽  
Sugarcane Production ◽  
Seasonally Flooded ◽  
Physical And Chemical ◽  
And Chemical Properties

The study was carried out in Makurdi, Benue State with the view to characterize some wetlands of Makurdi area and their suitability to rice and sugarcane production. In order to characterize and classify the soil, four pedons were dug at the selected seasonally flooded wetlands. The soils were characterized in terms of their morphological, physical and chemical properties. The soils were generally sandy loam, loamy sands and sandy clay loam. The distribution of clay content increased with soil depth for all pedons. The soils were strongly to moderately acid in reaction (3.47 to 5.61) in H2O. The soils had low (0.2 to 3.77 g/kg) organic carbon. The percentage base saturation ranged from 5 to 75 %. The soils were classified as Vertic Endoaquepts/Vertic Gleysols (Orthoeutric), Aeric Glossaqualfs/Lixic Gleysols (Orthoeutric) and Typic Epiaquults/Ferralic Acrisols (Epidystric). Soil Type B was marginally suitable (S3) for sugarcane. However, all the 4 soil types were moderately suitable (S2) for rice.

Effect of sugarcane monocropping on soil physical and chemical properties in texturally varied soils

2016 ◽  
Author(s):  
S. Rama Lakshmi ◽  
T. Sreelatha ◽  
K. Veerabhadrarao ◽  
N. Venugopalarao
Keyword(s):  
Sandy Loam ◽  
Chemical Properties ◽  
Nutrient Status ◽  
Organic Carbon Content ◽  
Physical And Chemical Properties ◽  
Clay Loam ◽  
Micronutrient Status ◽  
Soil Fertility Status ◽  
Physical And Chemical ◽  
And Chemical Properties

The present study was formulated to study the effect of sugarcane monocropping on soil physical and chemical properties of different textural classess of popular sugarcane growing areas of Visakhapatnam district of Andhra Pradesh. Results revealed that soil physical properties under monocropping were negatively influenced with increasing frequency of ratooning in all the textural classes. However more influence was observed under clay loam soils compared to sandy loams. The data on soil fertility status in different ratoons indicated that the available macro nutrient status and soil organic carbon content was higher in all the surface soils compared to subsurface soils and it was the highest in clay loam soils followed by red loam and sandy loams soils. With in different textural classes, clay loam soils exhibited the highest micronutrient status followed by red loams and sandy loam soils.

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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