Differences in carbon and nitrogen retention and bacterial diversity in sandy soil in response to application methods of charred organic materials

2022 ◽  
Vol 170 ◽  
pp. 104284
Author(s):  
Chidozie J. Oraegbunam ◽  
Sunday E. Obalum ◽  
Toshihiro Watanabe ◽  
Yvonne M. Madegwa ◽  
Yoshitaka Uchida
Keyword(s):  
Bacterial Diversity ◽  
Sandy Soil ◽  
Organic Materials ◽  
Nitrogen Retention ◽  
Carbon And Nitrogen ◽  
Application Methods

Metabolic Disorders Leading to Mental Deficiency

1963 ◽  
Vol 9 (5) ◽  
pp. 566-572 ◽  
Author(s):  
J L Karlsson
Keyword(s):  
Mental Retardation ◽  
Organic Carbon ◽  
Metabolic Disorders ◽  
Organic Materials ◽  
Mental Deficiency ◽  
New Approach ◽  
Carbon And Nitrogen ◽  
Metabolic Basis ◽  
Mental Defect

Abstract A new approach is described for the detection of abnormal metabolites in the urine of patients with known or suspected metabolic disorders. Distribution curves are presented for nonurea organic carbon and nitrogen which form a basis for judging whether grossly abnormal amounts of organic materials are present in the urine. Families with recurrent mental retardation have been identified whose mental defect may be on an unknown metabolic basis.

Effects of the return of organic materials on soil physical and chemical properties and bacterial number in sandy soil

2017 ◽  
Vol 37 (11) ◽  
Author(s):  
李培培 LI Peipei ◽  
汪强 WANG Qiang ◽  
文倩 WEN Qian ◽  
李慧 LI Hui ◽  
吴传发 WU Chuanfa ◽  
...  
Keyword(s):  
Sandy Soil ◽  
Organic Materials ◽  
Chemical Properties ◽  
Bacterial Number ◽  
Physical And Chemical Properties ◽  
Physical And Chemical ◽  
And Chemical Properties

scholarly journals Pertumbuhan dan Hasil Tanaman Terung Ungu Varietas Yumi F1 dengan Pemberian Berbagai Bahan Organik dan Lama Inkubasi pada Tanah Berpasir

2013 ◽  
Vol 12 (2) ◽  
pp. 6-12
Author(s):  
Titin Apung Atikah
Keyword(s):  
Plant Height ◽  
Rice Husk ◽  
Sandy Soil ◽  
Organic Materials ◽  
Fruit Weight ◽  
Chicken Manure ◽  
Fruit Crops ◽  
Fresh Weight ◽  
Number Of Leaves ◽  
Incubation Duration

The research aims to study the response of plant purple eggplant F1 Yumi variety by providing various organic materials and the proper incubation duration on sandy soil. This research used Completely Randomized Factorial Design. The first factor is giving various organic materials (chicken manure, and kayambang bokashi manure + rice husk charcoal) and the second is the incubation duration (2.4 and 6 weeks before planting). The results showed that providing various organic materials and the incubation duration highly significant influence on plant height and number of leaves aged 4 and 6 weeks after planted, the number of productive branches and fresh weight of fruit crops, but did not significantly affect the parameters of plant height and number of leaves aged 2 WAP. The highest yield for plant height parameter aged 4 and 6 WAP, number of leaves aged 4 and 6 WAP, number of productive branchs, number of fruits and fresh fruit weight was obtained at bokashi manure + rice husk charcoal treatment with 4 weeks incubation duration before planting.

TECHNIQUES FOR SPEEDING THE MOVEMENT OF LIME INTO AN ORCHARD SOIL

1990 ◽  
Vol 70 (2) ◽  
pp. 149-156 ◽  
Author(s):  
P. B. HOYT ◽  
B. G. DROUGHT
Keyword(s):  
Adverse Effect ◽  
Sandy Soil ◽  
Soil Acidity ◽  
Ground Cover ◽  
Fruit Trees ◽  
Rooting Zone ◽  
Soil Calcium ◽  
Orchard Soil ◽  
Significant Depression ◽  
Application Methods

Many soils in orchards in southern British Columbia are acidic, especially those with sandy texture. Most orchards have vegetative ground cover. A field experiment was therefore undertaken on a sandy soil to determine the most effective method of getting lime into the rooting zone of fruit trees without damaging their roots. Applying lime on the grass surface at 3.6 t ha−1 was as effective in reducing soil acidity of the 0- to 25-cm horizon as incorporating lime into the soil. Calcium hydroxide, calcite and dolomite were all equally effective in raising soil pH. Doubling the liming rate greatly increased the downward neutralization of soil acidity and movement of Ca and Mg. The pH was raised by about 1 unit throughout the profile by the higher rate of Ca(OH)2, (7.2 t ha−1). Ammonium sulphate detracted from the benefits of liming, with the 200 kg N ha−1 rate causing a significant depression in pH at the 0- to 20-cm depth. Ammonium nitrate had a smaller adverse effect. Hence, neutralization of soil acidity in the upper rooting zone of fruit trees can be accomplished in only a few years by applying high rates of lime on the grass surface and by using the lesser acidifying N fertilizers. Key words: Liming materials, application methods, N fertilizer

scholarly journals Carbon and nitrogen isotope ratios in meteoritic organic matter: indicators of alteration processes on the parent asteroid

2004 ◽  
Vol 3 (3) ◽  
pp. 221-227 ◽  
Author(s):  
Mark A. Sephton ◽  
Alexander B. Verchovsky ◽  
Ian P. Wright
Keyword(s):  
Stable Isotopes ◽  
Organic Matter ◽  
Solar System ◽  
Thermal Processing ◽  
Organic Materials ◽  
Nitrogen Isotope ◽  
Nitrogen Stable Isotopes ◽  
Data Set ◽  
Carbon And Nitrogen ◽  
Alteration Processes

Macromolecular organic materials in chondrites display significant variations in carbon and nitrogen stable isotopes. In recent years, these variations have been interpreted as a record of aqueous and thermal processing on asteroids shortly after the birth of the Solar System. In this paper we review and summarize the key data and main interpretative approaches related to this study area. Armed with these methods we attempt to reinterpret the whole rock chondrite data set in the literature.

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