Estimating Soil Mineralizable Nitrogen under Different Management Practices

2006 ◽  
Vol 70 (5) ◽  
pp. 1522-1531 ◽  
Author(s):  
Maysson M. Mikha ◽  
Charles W. Rice ◽  
Joseph G. Benjamin
Keyword(s):  
Management Practices ◽  
Mineralizable Nitrogen ◽  
Soil Mineralizable Nitrogen

Impact of management practices on soil microbial properties under wheat-cluster bean cropping system

2018 ◽  
Author(s):  
Nisha Nisha ◽  
Meenu Walia ◽  
Navneet Batra ◽  
Rajesh Gera ◽  
Sneh Goyal
Keyword(s):  
Management Practices ◽  
Nutrient Management ◽  
Cropping System ◽  
Management Systems ◽  
Microbial Biomass C ◽  
Soil Microbial ◽  
Potentially Mineralizable Nitrogen ◽  
Continuous Application ◽  
Mineralizable Nitrogen ◽  
Microbiological Properties

A study of organic, integrated and inorganic plant nutrient management systems was conducted to determine the effect of management practices on soil microbiological properties after 10 years of continuous application. The rate of C mineralization and potentially mineralizable nitrogen were 6.8 and 41.5 mg/kg soil, respectively. Arginine ammonification and nitrification activities were 0.88 µg NH4+- N/g soil/h and 56.0 µg NO3--N/g/day, respectively. Microbial biomass C, N and P were 320, 40 and 12 mg/kg soil, respectively. Alkaline phosphatase, urease and cellulase activities were highest with application of VC@15t /ha.

Effect of moisture content on biophysical characteristics of chickpea cultivars

2018 ◽  
Author(s):  
Nisha . ◽  
Meenu Walia ◽  
Navneet Batra ◽  
Rajesh Gera ◽  
Sneh Goyal
Keyword(s):  
Management Practices ◽  
Nutrient Management ◽  
Management Systems ◽  
Microbial Biomass C ◽  
Plant Nutrient ◽  
Potentially Mineralizable Nitrogen ◽  
Continuous Application ◽  
Mineralizable Nitrogen ◽  
Chickpea Cultivars ◽  
Microbiological Properties

A study of organic, integrated and inorganic plant nutrient management systems was conducted to determine the effect of management practices on soil microbiological properties after 10 years of continuous application. The rate of C mineralization and potentially mineralizable nitrogen were 6.8 and 41.5 mg/kg soil, respectively. Arginine ammonification and nitrification activities were 0.88 µg NH4+- N/g soil/h and 56.0 µg NO3--N/g/day, respectively. Microbial biomass C, N and P were 320, 40 and 12 mg/kg soil, respectively. Alkaline phosphatase, urease and cellulase activities were highest with application of VC@15t /ha.

Ectomycorrhizal fungal communities and soil chemistry in harvested and unharvested temperate Nothofagus rainforests

2009 ◽  
Vol 39 (6) ◽  
pp. 1069-1079 ◽  
Author(s):  
I.A. Dickie ◽  
S.J. Richardson ◽  
S.K. Wiser
Keyword(s):  
Soil Chemistry ◽  
Fragment Length Polymorphism ◽  
Organic Soil ◽  
Timber Harvesting ◽  
Inorganic Phosphorus ◽  
Fungal Communities ◽  
Mineralizable Nitrogen ◽  
High Degree ◽  
Soil Mineralizable Nitrogen ◽  
Degree Of Similarity

The composition of ectomycorrhizal (EcM) fungal communities in Nothofagus rainforests and the responses of the fungal communities to timber harvesting have been unknown. We investigated EcM communities in two sites, 9 to 11 years after timber harvesting, and tested whether changes in the communities were driven by soil chemistry. The fungal communities in both sites were highly diverse, yet 53 out of 140 distinct terminal restriction fragment length polymorphism (T-RFLP) patterns were shared between the sites. At both sites, timber harvesting reduced the presence of EcM roots and caused shifts in the fungal community in the organic soil horizons. At one site, Laccaria spp. increased in harvested areas, which partially correlated with an increase in soil mineralizable nitrogen. The other site showed a decreased abundance of Russula sp. (cf. R. purpureotincta , R. roseostipitata ) in harvested areas, which correlated with declines in soil carbon and organic horizon depth, and a decline in the abundance of rare species at the edge of harvested areas, which was related to inorganic phosphorus. The results show that EcM fungal communities in Nothofagus temperate rainforest are highly diverse at the local scale, yet have a high degree of similarity across sites. These communities are directly affected by timber harvesting and by shifts in soil chemistry following timber harvesting.

Long-Term Effects of Semisolid Beef Manure Application to Forage Grass on Soil Mineralizable Nitrogen

2011 ◽  
Vol 75 (2) ◽  
pp. 649-658 ◽  
Author(s):  
Mehdi Sharifi ◽  
Bernie J. Zebarth ◽  
David L. Burton ◽  
Vernon Rodd ◽  
Cynthia A. Grant
Keyword(s):  
Forage Grass ◽  
Long Term Effects ◽  
Manure Application ◽  
Mineralizable Nitrogen ◽  
Soil Mineralizable Nitrogen

Soil mineralizable nitrogen and soil nitrogen supply under two-year potato rotations

2009 ◽  
Vol 320 (1-2) ◽  
pp. 267-279 ◽  
Author(s):  
M. Sharifi ◽  
B. J. Zebarth ◽  
G. A. Porter ◽  
D. L. Burton ◽  
C. A. Grant
Keyword(s):  
Soil Nitrogen ◽  
Nitrogen Supply ◽  
Mineralizable Nitrogen ◽  
Soil Mineralizable Nitrogen ◽  
Soil Nitrogen Supply

Are Soil Mineralizable Nitrogen Pools Replenished during the Growing Season in Agricultural Soils?

2013 ◽  
Vol 77 (2) ◽  
pp. 512-524 ◽  
Author(s):  
Jacynthe Dessureault-Rompré ◽  
Bernie J. Zebarth ◽  
David L. Burton ◽  
Edward G. Gregorich ◽  
Claudia Goyer ◽  
...  
Keyword(s):  
Agricultural Soils ◽  
Growing Season ◽  
Nitrogen Pools ◽  
Mineralizable Nitrogen ◽  
Soil Mineralizable Nitrogen
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