Carbon and nitrogen fractions in soil during maize growth under long-term fertilizer management practices to maize-wheat cropping

2020 ◽  
Vol 68 (2) ◽  
pp. 170-179
Author(s):  
Gagandeep Kaur ◽  
B.S. Brar ◽  
G.S. Dheri ◽  
Sat Pal Saini
Keyword(s):  
Management Practices ◽  
Fertilizer Management ◽  
Carbon And Nitrogen ◽  
Nitrogen Fractions ◽  
Maize Growth

Labile soil carbon and nitrogen fractions under short and long-term integrated crop–livestock agroecosystems

Soil Research ◽  
2021 ◽  
Author(s):  
Jashanjeet Kaur Dhaliwal ◽  
Kavya Laxmisagra Sagar ◽  
Jemila Chellappa ◽  
Udayakumar Sekaran ◽  
Sandeep Kumar
Keyword(s):  
Soil Carbon ◽  
Carbon And Nitrogen ◽  
Nitrogen Fractions ◽  
Soil Carbon And Nitrogen ◽  
Short And Long Term

Effects of long-term organic material applications on soil carbon and nitrogen fractions in paddy fields

2020 ◽  
Vol 196 ◽  
pp. 104483 ◽  
Author(s):  
Qiaogang Yu ◽  
Xiao Hu ◽  
Junwei Ma ◽  
Jing Ye ◽  
Wanchun Sun ◽  
...  
Keyword(s):  
Soil Carbon ◽  
Organic Material ◽  
Paddy Fields ◽  
Carbon And Nitrogen ◽  
Nitrogen Fractions ◽  
Soil Carbon And Nitrogen

Monitoring Effects of Catchment Management Practices on Phosphorus Loads into the Eutrophic Peel-Harvey Estuary, Western Australia

1986 ◽  
Vol 18 (4-5) ◽  
pp. 53-61 ◽  
Author(s):  
P. B. Birch ◽  
G. G. Forbes ◽  
N. J. Schofield
Keyword(s):  
Management Practices ◽  
Major Change ◽  
High Flow ◽  
Catchment Management ◽  
Flow Rates ◽  
Early Results ◽  
Phosphorus Loads ◽  
Time Of Year ◽  
High Runoff

Early results from monitoring runoff suggest that the programme to reduce application of superphosphate to farmlands in surrounding catchments has been successful in reducing input of phosphorus to the eutrophic Peel-Harvey estuary. In the estuary this phosphorus fertilizes algae which grow in abundance and accumulate and pollute once clean beaches. The success of the programme has been judged from application of an empirical statistical model, which was derived from 6 years of data from the Harvey Estuary catchment prior to a major change in fertilizer practices in 1984. The model relates concentration of phosphorus with rate of flow and time of year. High phosphorus concentrations were associated with high flow rates and with flows early in the high runoff season (May-July). The model predicted that the distribution of flows in 1984 should have resulted in a flow-weighted concentration of phosphorus near the long-term average; the observed concentration was 25% below the long-term average. This means that the amount of phosphorus discharged into the Harvey Estuary could have been about 2 5% less than expected from the volume of runoff which occurred. However several more years of data are required to confirm this trend.

Sign in / Sign up

Export Citation Format

Share Document