1. Grassland Nitrogen
Author: Whitehead, D.C, D.C. Whitehead
Library: Library and Documentation Center of Kurdistan University (Kurdistan)
Subject: ، Feeding and Feeds
Classification :
SF
98/N5
/W45
2. Grassland nitrogen
Author: Whitehead, D.C.
Library: Central Library and Information Center of Ferdowsi University of Mashhad (Khorasan Razavi)
Subject: Fertilizers ، Grasses,، Nitrogen fertilizers,، Nitrogen in animal nutrition
Classification :
S
667
.
G7
W45
1995
3. Grassland nitrogen
Author: Whitehead, D. C.
Library: (Semnan)
Subject: ، Grasses- Fertilizers.,، Nitragen tertilizers.,، Nitrogen in animal nutrition
Classification :
S
667
.
W4G7
4. Grassland nitrogen
Author: Whitehead, D. C.
Library: Central Library of Agricultural (Tehran)
Subject: $ANitrogen -- Fixation,$ANitrogen fertilizers,$ASoils -- Nitrogen content,$APastures$BFertilizers
Classification :
QR
89
.
7
.
W4
5. Nutrient elements in grassland: : soil-plant-animal relationships
Author: Whitehead, D. C.)David Charles(
Library: Central Library of Agricultural (Tehran)
Subject: $BTrace elements in animal nutrition,$BRuminants- Nutrition,$BTrace elements in plant nutrition,$BForage plants- Composition,$BSoils- Trace element content
Classification :
S
592
.
6
.
T7
W55
2000
6. Nutrient elements in grassland. rient elements in grassland soil-plant-animal relationships /
Author: Whitehead, D. C.)David Charles(, David C. Whitehead
Library: Library and Documentation Center of Kurdistan University (Kurdistan)
Subject: ، Trace elements in animal nutrition,، RuminantsNutrition,، Trace elements in plant nutrition,، Forage plantsComposition,، SoilsTrace element content
Classification :
S
592
.
6
.
T7
C
.
1
7. Nutrient elements in grassland :s oil-plant- animal relationships
Author: Whitehead, D. C. )David Charles(
Library: (Semnan)
Subject: ، Trace elements in animal nutrition,Nutrition ، Ruminants,، Trace elements in plant nutrition,Composition ، Forage plants,Trace element content ، Soils
Classification :
S
592
.
6
.
T7W5
8. Nutrient elements in grassland :soil-plant-animal relationships
Author: Whitehead, D. C. )David Charles(
Library: (Semnan)
Subject: ، Trace elements in animal nutrition,Nutrition ، Ruminants,، Trace elements in plant nutrition,Composition ، Forage plants,Trace element content ، Soils
Classification :
S
592
.
6
.
T7W4
9. The role of nitrogen in grassland productivity:a review of information from temperate regions
Author: Whitehead, D. C. )David Charles(
Library: Central Library of Agricultural (Tehran)
Subject: $ANitrogen fertilizers,$APastures$BFertilizers
Classification :
S
651
.
W59
