1
Advances in agronomy . 136 /
Book
Table of Contents 
2
Nitrogen fixation in agriculture, forestry, ecology and the environment [E-Book] /
3
Advances in agronomy . 133 /
Book
Table of Contents 
4
Water requirements for irrigation and the environment [E-Book] /
5
Advances in agronomy . 134 /
Book
Table of Contents 
6
Advances in agronomy . 125 /
Book
Table of Contents 
7
The evolving sphere of food security /
Book
8
Advances in agronomy . 120 /
Book
Table of Contents 
9
Arbeitsplan und bisherige Arbeitsergebnisse [E-Book] /
10
Biorenewable resources : engineering new products from agriculture /
Book
11
Principles of plant genetics and breeding /
Book
12
Plant breeding /
Book
Table of Contents 
13
Advances in agronomy . 127 /
Book
Table of Contents 
14
Advances in agronomy . 132 /
Book
Table of Contents 
15
Advances in agronomy . 128 /
Book
Table of Contents 
16
Principles of ecology in plant production /
Book
17
Advances in agronomy . 130 /
Book
Table of Contents 
18
Advances in agronomy . 129 /
Book
Table of Contents 
19
Advances in agronomy . 126 /
Book
Table of Contents 
20
Advances in agronomy . 114 /
Book
Table of Contents