tailieunhanh - Yield targeting for rice under sri on alfisols of Tamil Nadu through soil test based integrated plant nutrition system

Soil Test Crop Response studies involving Integrated Plant Nutrition System (STCR - IPNS) were conducted on a Typic Haplustalf of Tamil Nadu, Southern India for developing fertiliser prescriptions for desired yield targets of rice- rice sequence under System of Rice Intensification (SRI). By adopting the Inductive cum Targeted yield model, variations in soil fertility with reference to soil available nitrogen (N), phosphorus (P) and potassium (K) were established and test crop experiment was conducted with rice-rice sequence. The findings pertaining to rabi season is discussed in this paper. | Nội dung Text Yield targeting for rice under sri on alfisols of Tamil Nadu through soil test based integrated plant nutrition system 2018 7 8 1134-1143 International Journal of Current Microbiology and Applied Sciences ISSN 2319-7706 Volume 7 Number 08 2018 Journal homepage http Original Research Article https Yield Targeting for Rice under SRI on Alfisols of Tamil Nadu through Soil Test based Integrated Plant Nutrition System S. Maragatham1 R. Santhi2 . Sellamuthu2 and Pradip Dey3 1 Agricultural College and Research Institute Kudumiyanmalai Pudukkottai TNAU India 2 All India Coordinated Research Project for Soil Test Crop Response Correlation AICRP- STCR Department of Soil Science and Agricultural Chemistry Tamil Nadu Agricultural University Coimbatore - 641 003 Tamil Nadu India 3 AICRP-STCR Indian Institute of Soil Science IISS Bhopal India Corresponding author ABSTRACT Soil Test Crop Response studies involving Integrated Plant Nutrition System STCR - IPNS were conducted on a Typic Haplustalf of Tamil Nadu Southern India for developing fertiliser prescriptions for desired yield targets of rice- rice sequence under System of Rice Keywords Intensification SRI . By adopting the Inductive cum Targeted yield model variations in soil Fertiliser fertility with reference to soil available nitrogen N phosphorus P and potassium K prescription were established and test crop experiment was conducted with rice-rice sequence. The equations Rice findings pertaining to rabi season is discussed in this paper. From the field experimental SRI Soil test crop data nutrient requirement NR contribution of nutrients from soil Cs fertilizer Cf and response Targeted farmyard manure Cfym were computed. The nutrient requirement for producing one yield quintal of rice grain yield was worked out as kg of N kg of P 2O5 and kg of Article Info K2O. The contributions of available N P2O5 and K2O .