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马克思主义、列宁主义、毛泽东思想、邓小平理论(2)
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在“
自然资源管理
”中,
命中:
5
条,耗时:小于0.01 秒
1.
Soil-extractable phosphorus and phosphorus saturation threshold in beef cattle pastures as affected by
grazing
management and forage type
作者:
Gilbert C. Sigua (1) Chad C. Chase Jr. (2) Joseph Albano (3)
关键词:
Beef cattle pastures
;
Degree of soil phosphorus saturation
;
Forage type
;
Phosphorus
;
Rotational
grazing
;
Subtropical
;
Zero
grazing
刊名:Environmental Science and Pollution Research
年:2014
2.
Cattle management practices and milk production on mixed smallholder organic pineapple farms in Central Uganda
作者:
S. Nalubwama
;
F. Kabi
;
M. Vaarst
;
G. Smolders…
关键词:
Cattle management
;
Milk production
;
Organic
刊名:Tropical Animal Health and Production
出版者:Springer Netherlands
年:2016
3.
Integrating sheep
grazing
into wheat-fallow systems: Crop yield and soil properties
作者:
Andrew W. Lenssena
;
alenssen@iastate.edu
;
Upendra M. Sainjub
;
Patrick G. Hatfieldc
关键词:
Cropping systems
;
Semiarid
;
Northern Great Plains
;
Tilled summer fallow
;
Chemical fallow
;
Grazed summer fallow
;
Spring wheat
;
Winter wheat
;
Sheep
;
Integrated livestock and grain farming systems
刊名:Field Crops Research
年:2013
4.
The role of pasture management for sustainable livestock production in semi-arid subtropical mountain regions
作者:
U. Dickhoefer
;
A. Buerkert
;
K. Brinkmann
;
E. Schlecht
关键词:
Biomass yield
;
Browse foliage
;
Equilibrium concept
;
Highlands
;
Oman
;
Rangeland vegetation
刊名:Journal of Arid Environments
年:2010
5.
Patterns of input–output relations in agro-ecosystems
作者:
Zoebl
;
Dirk
关键词:
Production functions
;
Input use efficiency
;
Virtual value
;
Increasing versus decreasing returns
;
Industrial versus natural resources
刊名:Agriculture, Ecosystems & Environment
年:2000
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