Cover crop and cereal straw management influence the residual nitrogen effect

2020 ◽  
Vol 118 ◽  
pp. 126100 ◽  
Author(s):  
Doline Fontaine ◽  
Jørgen Eriksen ◽  
Peter Sørensen
2019 ◽  
Vol 234 ◽  
pp. 15-25 ◽  
Author(s):  
Chiara De Notaris ◽  
Jim Rasmussen ◽  
Peter Sørensen ◽  
Bo Melander ◽  
Jørgen Eivind Olesen

2007 ◽  
Vol 87 (1) ◽  
pp. 113-115 ◽  
Author(s):  
Y K Soon

An earlier study indicated that cereal straw may be removed after harvest without affecting crop production, soil organic matter and microbial biomass. Further measurements of early indicators of changes in soil organic matter, viz., the light fraction and mineralizable C and N, confirm that straw removal is superior to straw incorporation with moldboard ploughing, and comparable to straw incorporation by disking, in C and N retention and turnover. Key words: Carbon, light fraction, mineralization, nitrogen, straw management


Author(s):  
Lovisa Björnsson ◽  
Thomas Prade

AbstractSustainability goals regarding biobased chemicals and fuels can lead to increased demand for cereal straw, which could lead to undesirable effects on soil organic matter (SOM) content. The aim of this study was to evaluate the effects of removing straw on SOM, using a life cycle approach based on agricultural statistics and soil carbon modelling. This regional evaluation in southern Sweden showed that the general restrictions on straw removal recommended in many European studies, with demands on the incorporation of at least half of the aboveground straw, is not an efficient means of SOM preservation. Unrestricted straw removal in combination with the cultivation of intermediate crops leads to a much higher SOM build-up. Such measures will increase the availability of removable straw 2.5 times, at little extra cost. The findings of this study demonstrate the necessity of regional evaluation, taking new findings on the impact of straw incorporation on SOM into consideration. This is important for both regional emerging biobased industries, where unnecessary restrictions on straw removal might hamper the development of new production pathways, and for future sustainability in agriculture, where well-intended but inefficient SOM preservation strategies might hinder the implementation of more efficient measures. Graphic Abstract


2019 ◽  
Vol 11 (3) ◽  
Author(s):  
IVAN VILELA ANDRADE FIORINI ◽  
Cassiano Spaziani Pereira ◽  
HELCIO DUARTE PEREIRA ◽  
FELIPE RIBEIRO RESENDE ◽  
EWERTON LELYS RESENDE ◽  
...  

The objective of this study was to evaluate the effect of Nitrogen (N) liberated by the early soybean straw, inoculated in function of dosage and application means of the inoculant, over the vegetative growth and grain yield of second crop corn, in succession. The hybrid corn Land® was sowed in January 1st, 2017 over the soybean straw from a former experiment in Sinop (MT). The trial design used was randomized blocks (DBC) with four replications and ten treatments. For the soybean treatments: witness without N application (only inoculated with Bradyrhizobium japonicum and B. elkanii); for the other treatments, it has been applied the dosage of 10 kg ha-1 of N in different phenological stages and ways of application (by haul at sowing; in V2 by haul and leaf fertilization; in V4 by haul and leaf fertilization; in R1 by haul and leaf fertilization; in R2 by haul and leaf fertilization). Plant height, stalk diameter, total chlorophyll and grain yield were evaluated. The N mineralization from the soybean straw is not enough to fulfill the corn N demand. Even though there were no significant differences among the treatments, the N application in V2 and R1 stages, by topdressing on former soybean, provided the highest grain yield of corn.


2017 ◽  
Vol 142 ◽  
pp. 2950-2964 ◽  
Author(s):  
N. Palmieri ◽  
M.B. Forleo ◽  
G. Giannoccaro ◽  
A. Suardi

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