cover image: Indian Tea Association tocklai Experimental Station Memorandum no 6 Nitrogen Supply to Tea

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Indian Tea Association tocklai Experimental Station Memorandum no 6 Nitrogen Supply to Tea

1946

The value of the various references in the pamphlet to costs depends not on the absolute cost but on the relative values and whilst the change in the cost of manures may be borne in mind yet no difference to the arguments in the pamphlet arises. [...] NITROGEN SUPPLY TO TEA CONTENTS PREFACE PAGES CHAPTER I. Nitrogen compounds naturally present in the soil 1 The nitrogen cycle 1 The formation of soil humus 1 The nature of humus 2 The determination of humus in soils 5 Loss on ignition 5 Determination of carbon 6 Estimation of the nitrogen 7 The natural accumulation of fertility by soil 8 The loss of fertility under cultivation 9 Soil managem [...] The use of manures 12 The law of diminishing returns 12 Different forms of nitrogen 13 Artificials versus organics 15 Comparison of costs of application of nitrogen in different forms 16 Table of unit costs of nitrogen in different forms 18 The concentrated organics compared to the inorganics... [...] The presence of the charcoal of course increases the estimate of organic matter if that is made by the loss-on-ignition method but in this method the error due to the charcoal is not multiplied by 2 as it is when organic matter is calculated from the carbon present. [...] The results of trials all over the world longer experience and the occurrence of hard times have now converted the fanner to the almost exclusive use of cheap inorganic forms of nitrogen though he returns to the soil in the form of farmyard or stable manure the dung and the straw produced from his own land "16 Nitrogen Supply to Tea.
agriculture environment
Pages
201
Published in
India
SARF Document ID
sarf.140567
Segment Pages Author Actions
Cover
i-i H.R. Coofer view
Frontmatter
i-viii H.R. Coofer view
Chapter.I. Nitrogen Compounds Naturally Present in the Soil
1-12 H.R. Coofer view
Chapter.II. The Use of Manures
12-23 H.R. Coofer view
Chapter.III.Trials of Different Forms of Nitrogen
23-37 H.R. Coofer view
Chapter. IV. Cattle Manure and “Line” Manure
37-46 H.R. Coofer view
Chapter.V. Humus Composts and the Use of Waste Materials
47-75 H.R. Coofer view
Chapter.VI. The Use of Leguminous Plants
75-94 H.R. Coofer view
Chapter.VII. Results to be Expected form Manuring
94-106 H.R. Coofer view
Chapter. VIII Relation of manuring to Other field oferations
107-114 H.R. Coofer view
Chapter.IX. Application of Manures Time and Manner
114-121 H.R. Coofer view
Chapter.X. Soil Erosion
121-128 H.R. Coofer view
Appendix
129-i H.R. Coofer view

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