Impact of activated charcoal and tannin amendments on microbial biomass and residues in an irrigated sandy soil under arid subtropical conditions

2013 ◽  
Vol 50 (1) ◽  
pp. 95-103 ◽  
Author(s):  
André Sradnick ◽  
Mariko Ingold ◽  
Johanna Marold ◽  
Rajasekaran Murugan ◽  
Andreas Buerkert ◽  
...  
Keyword(s):  
Microbial Biomass ◽  
Sandy Soil ◽  
Activated Charcoal

scholarly journals Dryland cropping systems influence the microbial biomass and enzyme activities in a semiarid sandy soil

2011 ◽  
Vol 47 (6) ◽  
pp. 655-667 ◽  
Author(s):  
Veronica Acosta-Martínez ◽  
Robert Lascano ◽  
Francisco Calderón ◽  
Jill D. Booker ◽  
Ted M. Zobeck ◽  
...  
Keyword(s):  
Microbial Biomass ◽  
Sandy Soil ◽  
Enzyme Activities ◽  
Cropping Systems

scholarly journals MICROBIAL BIOMASS AND ENZYMATIC ACTIVITIES IN SANDY SOIL CULTIVATED WITH LETTUCE INOCULATED WITH PLANT GROWTH PROMOTERS

2018 ◽  
Vol 31 (4) ◽  
pp. 860-870
Author(s):  
Marcele de Cássia Henriques dos Santos Moraes ◽  
Erika Valente de Medeiros ◽  
Dayane da Silva de Andrade ◽  
Leandro Dias de Lima ◽  
Ivonaldo Carlos da Silva Santos ◽  
...  
Keyword(s):  
Microbial Biomass ◽  
Plant Growth ◽  
Sandy Soil ◽  
Crop Production ◽  
Enzymatic Activities ◽  
Cattle Manure ◽  
Growth Promoter ◽  
Pseudomonas Sp ◽  
Growth Promoters ◽  
Combined Application

ABSTRACT Plant growth promoter microorganisms have been studied as important tools for increasing crop production. Lettuce is the most consumed hardwood crop in the world. Numerous microorganisms are capable of acting in a beneficial way in the growth of this culture. The objective of the present study was to evaluate the efficacy of Trichoderma and Pseudomonas on the microbial biomass, enzymatic activities in sandy soil and lettuce production. The experimental design was completely randomized with ten replicates and treatments: CONT (absolute control); CM (control with cattle manure fertilization); CMB (with fertilization and Pseudomonas sp.); CMF (with fertilization and T. aureoviride) and CMBF (with fertilization and the two microorganisms combined). The fertilizer used was organic with cattle manure in a dose recommended for the culture. This study evaluated the production of lettuce, microbial biomass and the enzymatic activity of acid phosphatase, alkaline phosphatase and urease. The combined application of CMBF was efficient in increasing lettuce production, because it increased 85% of the cv. Veronica cultivated on sandy soil. The combined use of plant growth promoting microorganisms resulted to an increase in microbial biomass. In lettuce crops, it is recommended to use T. aureoviride URM 5158 and Pseudomonas sp. UAGF 14 in lettuce crops, because improved lettuce production, improves the biochemical quality of soils measured by absolute and specific enzymatic activities per unit of microbial biomass.

Microbial biomass and activity down the soil profile after long-term addition of farmyard manure to a sandy soil

2016 ◽  
Vol 8 (1) ◽  
pp. 29-38 ◽  
Author(s):  
André Sradnick ◽  
Meike Oltmanns ◽  
Joachim Raupp ◽  
Rainer Georg Joergensen
Keyword(s):  
Microbial Biomass ◽  
Sandy Soil ◽  
Soil Profile ◽  
Farmyard Manure

Corrigendum to: Early growing season immobilisation affects post-tillering wheat nitrogen uptake from crop stubble and 15N fertiliser in a sandy soil

Soil Research ◽  
2021 ◽  
Vol 59 (3) ◽  
pp. 318
Author(s):  
Pilar Muschietti Piana ◽  
Therese Marie McBeath ◽  
Ann Marie McNeill ◽  
Pablo Ariel Cipriotti ◽  
Vadakattu Gupta
Keyword(s):  
Microbial Biomass ◽  
Sandy Soil ◽  
N Uptake ◽  
Early Growth ◽  
Wheat Crop ◽  
Growth Stages ◽  
N Availability ◽  
Soil System ◽  
N Supply ◽  
Energy Limitation

In semiarid sandy soil environments there is a dual challenge of carbon and nitrogen (N) limitation that needs to be managed to ensure timely supply of N to crops. Management of N inputs to soil using combinations of legume stubble addition and fertiliser N in cereal systems is essential to meet crop demand and maintain N in soil organic matter. The aim of this study was to assess soil mineral and biological N pools that influence N supply and N uptake of wheat at early growth stages. The recovery of 15N-labelled fertiliser by wheat was evaluated using a factorial combination of either wheat, lupin or no stubble incorporated with or without 15N fertiliser in a sandy soil system. Soil and plant samples were collected at sowing, tillering, first node and booting to monitor changes in N pools and 15N uptake by the wheat. Crop stubble incorporation one week before sowing increased biological N pools in the surface soil (0–10 cm). Early N immobilisation (sowing–tillering) in all the treatments without 15N fertiliser may have limited N availability for wheat uptake in the subsequent period (tillering–first node), when fertiliser N appeared critical to maximise N supply for plant requirements. Up to 38% of the 15N fertiliser applied at sowing was incorporated into the soil microbial biomass pool, so that fertiliser N was critical to relieve short-term inherent N limitations for both plant and microbial growth, and to supply the longer-term biological pools (microbial biomass) to support subsequent mineralisation potential. Reducing the energy limitation to the microbial pool through inputs of carbon from stubble was also critical to ensure fertiliser N supplied sufficient N to satisfy plant demand later in the growing period. These results have implications for management decisions on semiarid sandy soil systems that aim to synchronise N from inputs of legume stubbles and fertiliser with crop N demand during early growth stages of wheat.

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