Short-term responses of soil nutrient dynamics and herbaceous riverine plant communities to summer inundation

Wetlands ◽  
2008 ◽  
Vol 28 (1) ◽  
pp. 232-244 ◽  
Author(s):  
A. Martijn Antheunisse ◽  
Jos T. A. Verhoeven
Keyword(s):  
Plant Communities ◽  
Nutrient Dynamics ◽  
Soil Nutrient ◽  
Short Term

scholarly journals A short-term comparison of organic v. conventional agriculture in a silty loam soil using two organic amendments

2008 ◽  
Vol 146 (6) ◽  
pp. 677-687 ◽  
Author(s):  
J. F. HERENCIA ◽  
J. C. RUIZ ◽  
S. MELERO ◽  
P. A. GARCIA GALAVÍS ◽  
C. MAQUEDA
Keyword(s):  
Organic Farming ◽  
Crop Yields ◽  
Organic Amendments ◽  
Chemical Properties ◽  
Soil Nutrient ◽  
Short Term ◽  
Organic System ◽  
Conventional Agriculture ◽  
Silty Loam ◽  
Loam Soil

SUMMARYThe transition from conventional to organic farming is accompanied by changes in soil chemical properties and processes that could affect soil fertility. The organic system is very complex and the present work carries out a short-term comparison of the effects of organic and conventional agriculture on the chemical properties of a silty loam soil (Xerofluvent) located in the Guadalquivir River Valley, Seville, Spain, through a succession of five crop cycles over a 3-year period. Crop rotation and varieties were compared in a conventional system using inorganic fertilizer and two organic systems using either plant compost or manure. At the end of the study, organic farming management resulted in higher soil organic carbon (OC), N and available P, K, Fe and Zn. The available Mn and especially Cu values did not show significant differences. In general, treatment with manure resulted in more rapid increases in soil nutrient values than did plant compost, which had an effect on several crop cycles later. The present study demonstrated that the use of organic composts results in an increase in OC and the storage of nutrients, which can provide long-term fertility benefits. Nevertheless, at least 2–3 years of organic management are necessary, depending on compost characteristics, to observe significant differences. Average crop yields were 23% lower in organic crops. Nevertheless, only two crops showed statistically significant differences.

Year-Round Soil Nutrient Dynamics from Broiler Litter Application to Three Bermudagrass Cultivars

2004 ◽  
Vol 96 (2) ◽  
pp. 525-530 ◽  
Author(s):  
K. R. Sistani ◽  
G. E. Brink ◽  
A. Adeli ◽  
H. Tewolde ◽  
D. E. Rowe
Keyword(s):  
Nutrient Dynamics ◽  
Soil Nutrient ◽  
Broiler Litter

Long-Term Effects of Grazing and Haying on Soil Nutrient Dynamics in Forage-Based Beef Cattle Operations

2007 ◽  
Vol 29 (3) ◽  
pp. 115-134 ◽  
Author(s):  
Gilbert C. Sigua ◽  
Mary J. Williams ◽  
Samuel W. Coleman
Keyword(s):  
Beef Cattle ◽  
Nutrient Dynamics ◽  
Soil Nutrient ◽  
Long Term Effects

How Do Agricultural Practices Modify Soil Nutrient Dynamics in CCB?

2018 ◽  
pp. 153-161
Author(s):  
Yunuen Tapia-Torres ◽  
Pamela Chávez Ortiz ◽  
Natali Hernández-Becerra ◽  
Alberto Morón Cruz ◽  
Ofelia Beltrán ◽  
...  
Keyword(s):  
Nutrient Dynamics ◽  
Agricultural Practices ◽  
Soil Nutrient

Central boreal mire plant communities along soil nutrient potential and water content gradients

2010 ◽  
Vol 331 (1-2) ◽  
pp. 257-264 ◽  
Author(s):  
Paavo Närhi ◽  
Maarit Middleton ◽  
Eija Hyvönen ◽  
Matti Piekkari ◽  
Raimo Sutinen
Keyword(s):  
Water Content ◽  
Plant Communities ◽  
Soil Nutrient

scholarly journals Soil Nutrient Dynamics and Nitrogen Fixation Rate Changes over Plant Growth in Temperate Soil

Agronomy ◽  
2019 ◽  
Vol 9 (4) ◽  
pp. 179 ◽  
Author(s):  
Ágota Horel ◽  
Györgyi Gelybó ◽  
Imre Potyó ◽  
Klára Pokovai ◽  
Zsófia Bakacsi
Keyword(s):  
Nitrogen Fixation ◽  
Nutrient Dynamics ◽  
Plant Biomass ◽  
Soil Nutrient ◽  
Initial Increase ◽  
Pepper Plant ◽  
Plant Interactions ◽  
Fixation Rate ◽  
Total N ◽  
Fiber Sludge

Research on the use of soil enhancer materials such as biochar from soil chemical perspective still provide differing results; therefore, investigations focusing on soil-biochar-plant interactions are still necessary to constrain our understanding of complex biochar effects. The present study investigated the changes in biological nitrogen fixation rates (BNF) and overall nutrient dynamics (NO3−, NH4+, total N, K2O, and P2O5) during the growth of Capsicum annuum (pepper) in pot experiments amended with biochar made of paper fiber sludge and grain husk. Four treatments were studied with 0, 0.5%, 2.5%, and 5.0% (by weight) added biochar (BC) amount to temperate silt loam soil. Peppers were planted at 2–4 leave stages and grown for the duration of 12.5 weeks. Our results showed that total nitrogen had relatively small changes in all treatments over time compared to the dynamic changes observed in the case of inorganic nutrients. NO3−-N and NH4+-N abundances presented a continuous decrease during the course of the study after an initial increase. The pepper plant facilitated the BNF rates to triple in the control soils, while plants were in the growing phase (weeks 1–6), which further increased an additional 61% by harvesting (week 12). A high amount of biochar addition suppressed potential BNF rates of the investigated soil, indicating its potentially negative effects on soil indigenous microbial communities if added in excess. We also found a plateau in plant biomass production that after reaching an optimal (2.5%) biochar amendment in the soils, and excess biochar addition did not result in significant changes in the soils’ pH to achieve better nutrient (potassium, nitrogen, phosphorous) use or crop growth.

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