Effect of Nitrogen and Phosphorus Fertilizers on Growth and Yield of Quality Protein Maize (QPM)

Abstract

Abstract:Response of quality protein maize hybrid (HQPM-1) to various N and P levels was studied at College Farm, College of Agriculture, Rajendranagar, Hyderabad during kharif 2012. Quality protein maize was tested with four nitrogen levels (0, 120, 180 and 240 kg N ha -1 ) and four phosphorus levels (0, 60, 80 and 100 kg P 2 O 5 ha -1 ) which was laid out in randomized block design with three replications at a spacing of 60 × 20 cm. Results showed that each incremental effect of nitrogen and phosphorus fertilizers significantly increased the plant height, LAI, dry matter production and yield (grain and stover) of HQPM-1 hybrid over control. Application of 240kg N ha -1 gave maximum plant height (212.75 cm), LAI (3.89), dry matter production (13432 kg ha -1 ), grain yield (6383 kg ha -1 ) and stover yield (7050 kg ha -1 ) followed by 180, 120 kg N ha -1 and control. Similarly, 100 kg P 2 O 5 ha -1 resulted in highest plant height (185.95 cm), LAI (3.17), dry matter production (10572 kg ha -1 ), grain yield (5010 kg ha -1 ) and stover yield (5562 kg ha -1 ). It is concluded that N and P should be applied at the rate of 240 kg ha -1 and 100 kg ha -1 for quality protein maize to realize good yields in the agro-ecological conditions of South Telangana region of A.P.

Interactive effect of different levels of nitrogen and FYM on growth, yield, and protein content of spring maize (Zea mays L.)

“…At all the levels of N, application of FYM 15 significantly increased the stover yield over FYM 0 but further increase to FYM 22.5 failed to increase significantly. Jena et al (2013) [42] concluded that increase in the level of N significantly increased the stover yield. Amanullah et al (2015) [43] reported that application of 120 kg N ha -1 significantly increased the stover yield.…”

Response of Nitrogen and Phosphorus on Growth, Yield and Economics of Fodder Maize (Zea mays L.)

“…However, the treatment -8(Nitrogen 100 kg/ha + Phosphorus 40 kg/ha) was found to be statistically at par with treatment-9 (Nitrogen 100 kg/ha + Phosphorus 50 kg/ha) in (Table 2). "Significant and maximum crude protein was recorded with application of nitrogen (100kg/ha) might be due to nitrogen is an active ingredient of protein molecule and a building block of amino acid results in linear increase in crude protein with increased nitrogen levels" Sewhag et al [15,[16][17][18][19][20].…”

Impact of Nutrients on the Development and Yield of Fodder Maize (Zea mays L.): A Review

“…day -1 ) were gained by the application of 520 kg urea ha -1 . Jena et al (2015) proposed that the larger height of the plant (212.75 cm) and a higher leaf area index (3.89) were obtained from the application of 240 kg nitrogen ha -1 as compared to control treatments. Rihab et al, 2015 conducted a field experiment and explained about the effect of different levels of nitrogen in maize field under plant density (Table 1).…”

“…The same result was proposed by Khan et al (2014) who concluded that highest yield was received by the application of nitrogen substance properly with the proper dose. Jena et al (2015) from Andhra Pradesh, conducted an experiment on maize crop and proposed that the highest amount of dry matter produced (13432 kg ha -1 ) by the petition of 240 kg nitrogen ha -1 respectively, while the lowest dry matter production (4022 kg ha -1 ) was observed in the control condition. Kar et al (2016) reported that higher dry matter (21.66%) and higher yield of dry matter (83.77 q ha -1 ) were executed by the application of the proper recommended dose of fertilizer.…”

“…Bouras et al (2021) studied that phosphorus fertilizer enhances the productivity of fodder maize irrigated with saline water and they suggested that in saline conditions increasing the phosphorus fertilization which helps the increasing all parameters of plant growth; the higher rate of all growth parameters were gained during the applying of 150 kg P 2 O 5 ha -1 . Jena et al (2015) proposed that larger height of the plant (185.95 cm) and higher leaf area index (3.17) were obtained from applying of 100 kg phosphorus ha -1 namely compared to the control condition. Raskar et al (2012) suggested that the height of maize plant increases with the increased rate of phosphorus fertilizer applications up to 80 kg ha -1 .…”