Nitrogen requirements associated with improved conservation tillage for corn production

1981 ◽  
Vol 12 (11) ◽  
pp. 1133-1149 ◽  
Author(s):  
G.W. Langdale ◽  
J.E. Box ◽  
C.O. Plank ◽  
W.G. Fleming
PLoS ONE ◽  
2021 ◽  
Vol 16 (7) ◽  
pp. e0254423
Author(s):  
Jiamei Wang ◽  
Xiangdong Hu

Globally, corn is characterised by high production and high export concentrations, yet the world is experiencing an unprecedented, huge change in this regard. Ensuring the global supply of corn, and thereby the energy and food security of nations has become particularly important. To understand the importance of corn production as an influencing mechanism of global food supplies, the present study researched the corn production of typical farms in major corn-producing and importing countries around the world. I selected the corn input and output data of 18 typical farms in 12 countries from 2012 to 2019, used the data envelopment analysis (DEA) model to calculate the technical efficiency of corn production, and built a tobit model to explore the impact of farming methods, input elements, supporting services, and other factors on efficiency. The study established that the average comprehensive technical efficiency of corn production on a typical farm was 0.863, and the average loss was 13.7%. In addition, it concluded that intensive tillage and conservation tillage have high technical efficiency. It also demonstrated that the proportion of mechanical labour and technical efficiency is in a ‘U’-shaped relationship, among others.


2014 ◽  
Vol 39 ◽  
pp. 102-114 ◽  
Author(s):  
Ehsan Houshyar ◽  
Mohammad Javad SheikhDavoodi ◽  
Morteza Almassi ◽  
Hooshang Bahrami ◽  
Hossein Azadi ◽  
...  

1991 ◽  
Vol 5 (1) ◽  
pp. 66-71 ◽  
Author(s):  
Douglas D. Buhler

Field research was conducted at Arlington, WI in 1984 and 1985 to determine the influence of application timing on weed control with atrazine and metolachlor in conservation tillage corn production systems. Early preplant treatments controlled fewer weeds than preemergence or early preplant/preemergence sequential treatments in a chisel plow system. Velvetleaf control was only 50% late in the growing season with early preplant atrazine compared with 88% with an early preplant/preemergence sequential treatment of the same amount of atrazine. In the no-till system, early preplant applications of atrazine and/or metolachlor had reduced weed control late in the growing season compared with preemergence and early preplant/preemergence sequential treatments of the same amount of herbicide. Giant foxtail control 110 d after corn planting was only 73% with an early preplant treatment compared with 99% when the same amount of herbicide was evenly divided between early preplant and preemergence applications.


1995 ◽  
Vol 87 (3) ◽  
pp. 507-512 ◽  
Author(s):  
Douglas D. Buhler ◽  
Jerry D. Doll ◽  
Richard T. Proost ◽  
Mark R. Visocky

2018 ◽  
Vol 110 (6) ◽  
pp. 2673-2686 ◽  
Author(s):  
Saseendran S. Anapalli ◽  
Krishna N. Reddy ◽  
Sindhu Jagadamma

2007 ◽  
Vol 35 (2) ◽  
pp. 1101-1104 ◽  
Author(s):  
Attila Stingli ◽  
Árpád Bokor ◽  
Mária Kondor-Jakab

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