Soil Carbon and Crop Yields Affected by Irrigation, Tillage, Cropping System, and Nitrogen Fertilization

2014 ◽  
Vol 78 (3) ◽  
pp. 936-948 ◽  
Author(s):  
Upendra M. Sainju ◽  
William B. Stevens ◽  
Thecan Caesar-TonThat
Keyword(s):  
Soil Carbon ◽  
Nitrogen Fertilization ◽  
Crop Yields ◽  
Cropping System

scholarly journals Effects of tillage practices and rate of nitrogen fertilization on crop yield and soil carbon and nitrogen

2014 ◽  
Vol 60 (No. 3) ◽  
pp. 100-104 ◽  
Author(s):  
Y. Feng ◽  
T. Ning ◽  
Z. Li ◽  
B. Han ◽  
H. Han ◽  
...  
Keyword(s):  
Soil Carbon ◽  
Crop Yield ◽  
Nitrogen Fertilization ◽  
Field Experiments ◽  
Total Yield ◽  
Cropping System ◽  
Conventional Tillage ◽  
Carbon And Nitrogen ◽  
Tillage Practices ◽  
Soil Carbon And Nitrogen

We conducted field experiments since 2006 to determine the effect of tillage practices and rate of nitrogen fertilization on soil properties and crop yield. Four tillage practices and five N rates were used. The results showed that the year-round total yield of wheat and maize under harrow tillage (HT) and rotary tillage (RT) was not significantly different from that of conventional tillage (CT, moldboard tillage) but was higher than that of no-tillage (NT). Reduced tillage (HT and RT) with straw returned and rate of nitrogen (157.5 kg/ha for wheat and 202.5 kg/ha N for maize) were suitable to increase the yield and adjust the soil carbon and nitrogen situation for the winter wheat-summer maize cropping system.

Improved Plant Diversity as a Strategy to Increase Available Soil Phosphorus

2019 ◽  
Vol 103 (1) ◽  
pp. 43-45 ◽  
Author(s):  
Carlos Crusciol ◽  
João Rigon ◽  
Juliano Calonego ◽  
Rogério Soratto
Keyword(s):  
Crop Yields ◽  
Soil Phosphorus ◽  
Cropping System ◽  
P Availability ◽  
P Fractions ◽  
Crop Species ◽  
Soil P ◽  
Residue Decomposition ◽  
Available Soil Phosphorus ◽  
Crop Residue Decomposition

Some crop species could be used inside a cropping system as part of a strategy to increase soil P availability due to their capacity to recycle P and shift the equilibrium between soil P fractions to benefit the main crop. The release of P by crop residue decomposition, and mobilization and uptake of otherwise recalcitrant P are important mechanisms capable of increasing P availability and crop yields.

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