Response of different sources and levels of phosphorus on yield, nutrient uptake and net returns on mungbean under rainfed condition

Abstract

The results of the study indicated the application of phosphorus upto 40 kg P 2 O 5 ha -1 recorded significantly higher number of pods per plant, number of seeds per pod, number of total and effective root nodules, test weight, seed and straw yield, nitrogen, phosphorus and potassium content in seed and straw and their uptake, protein content in seed and net return as compared to absolute control and 20 kg P 2 O 5 ha -1 but was at par with 60 kg P 2 O 5 ha -1 . Application of different sources of phosphorus led to significant effect on seed yield. PROM (Phosphorus Rich Organic Manure) (8.36) was significantly superior in increasing the seed yield by 17.74 and 12.21 per cent, respectively, as compared to DAP (7.10) and SSP (7.45). However, both DAP and SSP being at par with each other. Application of phosphorus @ 40 (7.98) and 60 kg P 2 O 5 ha -1 (8.44) significantly increased the seed yield by 22.95 and 30.04 per cent, respectively as compared to 20 kg P 2 O 5 ha -1 (6.49). However, both 40 and 60 kg P 2 O 5 ha -1 were at par with each other in increasing seed yield. The highest net return (Rs. 14865) was obtained with application of 40 kg P 2 O 5 ha -1 over absolute control and 20 kg P 2 O 5 ha -1 and phosphorus fertilization with PROMfetched the highest net return (Rs. 14736 ha -1 ) which was significantly higher over DAP and SSP.

Growth Analysis and Response Studies in Cowpea [Vigna unguiculata (l.) Walp] under the Influence of PROM and Phosphatic Inoculants

“…From regression studies (Table 2), it was noted that a unit increase in number of pods/plant, number of seeds/pod, test weight and total N, P and K uptake increased the seed yield of cowpea. Similar results were also reported by Babu [14] in soybean and Singh et al [15] in mungbean.…”

Evaluation of groundnut genotypes for phosphorus efficiency through leaf acid phosphatase activity

“…For this reason, crops are supplied with inorganic P fertilizers which are non-renewable (Pandey et al 2016). The use of P fertilizers like rock phosphate which is water insoluble or triple superphosphate (water soluble) get precipitated into different forms and largely remain unavailable (Singh et al 2015a, Ortiz, 2006. P uptake depends upon soil type, mode of application, form of P in the soil, presence of arbuscular mycorrhizae and phosphorus solubilizing microbes in soil (Singh et al 2015b, Rashmi et al 2014).…”

Effect of FYM, Phosphorus and PSB on Growth, Yield Attributes, Quality, Nutrient Content (%) and Uptake by Kharif Green Gram [Vigna radiata (L.) Wilczek]

“…of branches plant -1 (4.52) at maturity, number of nodules plant -1 (23.19) at 60 DAS and dry weight of nodules plant -1 13.42g at 60 DAS was recorded with application phosphorous at 40 kg P 2 O 5 + PSB ha -1 over rest of treatment. Maduku et al [17] and Singh et al [18] also pointed out that phosphorus and PSB is good for plant growth, nodulation, and root development. Because there was more nodulation when there was more phosphorus, bacteria that fix nitrogen might have been able to make enough nitrogen and help Green gram grow better [19,20].…”