chhonkar dwivedi (1 Ergebnisse)

Hardcover. Zustand: As New. Contents Foreword. 1. Soil analysis i. Soil sampling and processing. ii. Soil test procedures. iii. Methods for determination of amendment requirements of problem soils. iv. Determination of phosphate fixing capacity of soil. v. Determination of potassium fixing capacity of soil. 2. Plant analysis i. Plant sampling. ii. Analysis of nutrients in plants. iii. Interpretation of plant test results. 3. Water quality assessment for irrigation i. Water sampling techniques. ii. Chemical analysis of water. iii. Rating of irrigation water quality. iv. Use of saline/sodic waters for irrigation. v. Interpretation of water analysis data. 4. Instruments used in soil plant and water analysis i. General purpose instruments. ii. Advanced instruments. iii. Computer applications in soil testing programme. 5. Special tests i. Determination of soil microbial biomass carbon. ii. Determination of biological activity of soil by dehydrogenase assay. iii. Rapid tissue test for nitrate. iv. Bioassay of available potassium using Aspergillus Niger. v. Soil fertility evaluation using Neubauer technique. vi. Assessing nematode population in soil by Cobb decanting and sieving method. 6. Fertilizer recommendations i. General recommendations. ii. Recommendation based on soil fertility rating. iii. Critical limit based recommendations. iv. Recommendations based on targeted yield. v. Recommendations based on nutrient index. vi. Recommendation for cropping sequence. vii. Use of simulation models. viii. Site specific nutrient management. 7. Establishment of laboratory soil plant and water analysis i. Instruments. ii. Glassware. iii. Accessories. iv. Water distillation unit. v. Staff. vi. Design of laboratory. vii. Mobile soil testing laboratory. References. Appendices. Based on the three and a half decades of experience in soil plant and water analysis the authors have prepared this user friendly laboratory manual giving the much needed and simplified version of the analytical procedures. Along with the basic principles of different analytical methods easy to understand basics of instrumentation are also provided for the benefit of all users in general and students in particular. The book has major chapters on simplified methods of soil testing plant analysis irrigation water quality assessment and soil test based fertilizer recommendations besides a few selected special tests. 200 pp.