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Tamil Nadu Agricultural University Soil and water Management
Research Institute Kattuthottam Thanjavur 613 501 |
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Research Achievements
v Characterization of Thanjavur
soils for water holding capacity ranging from 70-200 mm depth.
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Summer
ploughing with mould board plough reduced water requirement for land
preparation by 100 mm. v Application of either 20 kg N/ha or
1.25 kg/ha Trichoderma viride three days before ploughing accelerates
decomposition of Kuruvai rice stubbles. v The IRRI-SWMRI model drum seeder
sown rice saves labour without yield reduction in rice. v
Seedlings broadcasting in main field for Kuruvai rice, saves 30%
labour. v Humic acid (0.3%) spray enhances
grain yield in rice. v
Yield reduction due to water stress was brought down from 21% to
2.3% by the application of KCl (1%). v The SPAD chlorophyll meter based N
application in rice matches the crop demand and results in higher productivity
in all the seasons. v
SSNM was found to be effective in increasing yield as well as
improving N use efficiency apart from sustaining pest and disease below ETL. |
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