Aihe-ehdotuksia
Aihe-ehdotuksia
Soil organic matter
18
Soils
10
Crop production
8
Soil Chemistry and Mineralogy
8
Soil fertility
8
Soil organisms
8
Soil reaction
8
soil acidity
7
Agricultural meteorology
6
Irrigation systems
6
Soil Biology
6
Soil Fertility
6
Soil Temparature
6
Soil formation
6
Soil moisture
6
Soil organism
6
Tillage
6
soil alkality
6
soil clssification
6
soil erosion
6
soil salirity
6
Erosion control
5
Mineral soils
5
Organic Soils
5
SOIL ORGANIC MATTER
5
Soil water
5
Fertilizer management
4
Nitrogen
4
Nutrient uptake
4
Plant Nutrition
4
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1
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2
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3
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4
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5Tekijä Pendias, Henry KAiheet: “...Biosphere, Anthroposphere, Soil Processes, Soil constitutents , Soil Organisms...”
Julkaistu 2001
Printed Book -
6Aiheet: “...Soil organisms 132269...”
Printed Book -
7
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8
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9
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10Aiheet: “...Soil Ecology, Soil organisms and soilweb, Ecological and Pedological functions of Soilweb...”
Printed Book -
11
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12
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13Tekijä Sanyal,Saroj KumarAiheet: “...Soil Organic Matter, Chemistry...”
Julkaistu 2018
Printed Book -
14
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15
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16
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17
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18
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19
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20