Author: RANI PERUMAL P. DURAISAMY, C JAYARAMAN, TS. MANICKAM. and G. V. KOTHANDARAMANA,
p-ISSN: 0024-9602, e-ISSN:2582-5321, Vol: 73, Issue: apr-apr,
Soil test crop response study with two rice varieties viz.. Bhavani on Noyyal alluvium (Typic Haplustall) and IR 20 on Kalathar alluvium Entic Pelfustalf) was conducted to find out the influence of P and K fertilization on N recovery and efficiency. The grain yield and uptake of N were utilized to calculate N efficiency and recovery. Application of P with N. increased the grain yield as well as N uptake in both the varieties of rice IR 20 and Bhavani, K fertilization did not increase the yield and uptake appreciably. Similar trend was noticed in the case of N recovery and efficiency, Among the varieties rice IR 20 showed higher N efficiency and recovery than rice Bhavani,
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