Vol. 7, Special Issue 6 (2019)
Response of fertility level on different inbred line of maize (Zea Mays L.) productivity in Bihar
Author(s): MK Singh, Shambhu Prasad, YK Singh, SK Gupta, SS Mandal and Birender Singh
Abstract: The field experiments were carried out on sandy loam soil at Sabour during Rabi season of 2012-13 and 2013-14 to evaluate appropriate fertility levels for promising inbreed of maize. The sandy loam soil of the experimental field was medium in organic carbon (0.56%), low available N (190.5 kg ha-1), and medium in available P2O5 (28.3 kg ha-1) and K2O (165.8 kg ha-1) content, having pH 7.2. The experiments were laid out in split-plot design and replicated thrice with four fertility viz. 80:40:20; 120:60:30; 160:80:40, 200:100:50 kg N-P2O5-K2O ha-1 in main plots and six inbreed lines of maize viz. CML 161, CML 163, BML 6, BML 7, CM 600, VQL 1 in sub plot. The mean data showed that significant grain yield (27.38 q ha-1), stover yield (93.21 q ha-1), net return (Rs125158 ha-1) and B:C ratio (3.15) were obtained with fertility level 160:80:40kg N:P2O5:K2O/ha. Among different inbreed lines BML-6 produce significantly higher yield (32.10 q ha-1), net return (Rs148689 ha-1) and B:C ratio (3.80) which were at par with CML161 (30.76 q/ha, Rs142044 ha-1). The uptake (kg ha-1) of N (133.83), P (25.07), K (156.70) were noticed significant upto fertility level 160:80:40kg kg N:P2O5:K2O ha-1 but remained at par to fertility level of 200:100:50 kg N-P2O5-K2O ha-1. Inbred line BML 7 removed significantly higher nutrients (kg ha-1) N (144.20), P (27.43), K (174.84) which was comparable to removal by maize in breed lines BML 6 and CML 161. After two crop cycle the organic carbon, available N and K2O was decline and the magnitude of decrease was less with highest fertility level 200:100:50 kg N:P2O5:K2O/ha applied plots. However, available P2O5 was more over its initial values and highest under fertilized with 200:100:50 kg N:P2O5:K2O/ha. Effect of inbred lines was also noticed, organic carbon, available N and K2O was decline and the magnitude of decrease was less with VQL1. Whereas, available P2O5 was more over its initial value and highest with VQL1 due to its lower uptake by plant.
Pages: 647-650 | 440 Views 66 Downloads
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How to cite this article:
MK Singh, Shambhu Prasad, YK Singh, SK Gupta, SS Mandal and Birender Singh. Response of fertility level on different inbred line of maize (Zea Mays L.) productivity in Bihar. International Journal of Chemical Studies. 2019; 7(6): 647-650.
