Phosphorus Status in Soils of Eastern Dry Zone, Karnataka

Chandrakala, M.; Srinivasamurthy, C. A.; Kumar, Sanjeev; Bhaskar, S.; Parama, V. R. R.; Naveen, DV

doi:10.20546/ijcmas.2017.611.035

Cited by 4 publications

(2 citation statements)

References 5 publications

(6 reference statements)

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“…From the Table 4, it was observed that Al-P showed positive and significant correlation with Fe-P (r= 0.885**) and negative significantly correlated with other forms of P (r= -0.452*). Similar results were reported by Chandrakala et al (2017) [3] based on phosphorus fertility gradients with Fe-P and Org-P.…”

Section: Al-psupporting

confidence: 91%

Status of available phosphorus, forms and distribution of phosphorus in soil under major cropping systems of Nellore district, A.P

Krishna¹,

Krishna²,

Munaswamy³

et al. 2020

J Pharmacogn Phytochem

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An investigation was undertaken during 2018-19 in Southern zone of A.P. to study the Status of available phosphorus and forms of Phosphorus in soil under major cropping systems of Nellore district. The Ca-P was observed to be the predominant P fraction under all major cropping systems could be attributed to high CaCO3 content. The highest mean values for saloid-P (16.67 mg kg -1 ), total-P (538.21 mg kg -1 ) and other forms of P (342.07 mg kg -1 ) were recorded in groundnut-paddy cropping system and Fe-P (68.77 mg kg -1 ) and Al-P (61.85 mg kg -1 ) were highest in paddy-paddy cropping system, whereas available P2O5 (166.82 kg ha -1 ) and Ca-P (173.15 mg kg -1 ) were highest in groundnut-paddy and fallow-bengalgram systems, respectively. pH showed positive and significant relation with total-P (r= 0.507**) and other forms of P (r= 0.573**) where as free CaCO3 showed positive and significant correlation with Ca-P (r= 0.432*) in calcareous soils of S.P.S.R. Nellore district. Available P2O5 showed positive and significant correlation with saloid-P (r= 0.456*), Al-P (r= 0.765**) and Fe-P (r= 0.559**), saloid-P showed significant and positive correlation with total-P (r= 0.477*) and other forms of P (r= 0.510**). Al-P showed positive and significant correlation with Fe-P (r= 0.885**). Similarly, Ca-P showed positive and significant relation with total-P (r= 0.418*).

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Section: Al-psupporting

confidence: 91%

Status of available phosphorus, forms and distribution of phosphorus in soil under major cropping systems of Nellore district, A.P

Krishna¹,

Krishna²,

Munaswamy³

et al. 2020

J Pharmacogn Phytochem

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“…Thereby maintaining the organic carbon status and inclusion of organic resources in agriculture could be supportive in maintaining the soil fertility of Chikkaballapura soil. [22] and Padmavathi et al [23], respectively It is also reported by Chandrakala et al [24].…”

Section: Available Nitrogen (N) (Kg Ha -1 )mentioning

confidence: 72%

Assessing the Nutrient Status and Soil Fertility Using Nutrient Indexed of Farmer’s Fields in Chikkaballapura District, Karnataka

Sandhya,

Gayathri,

Papireddy

et al. 2023

IJPSS

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The soil samples were collected by farmers in their own cultivable land analysed at soil testing laboratory at KVK, Chikkaballapura. From last decade (2012 to 2022), the samples were analysed following standard procedures. Nutrient status and nutrient Index was estimated to know the fertility status of the soils. The pH of soils of Chikkaballapura district was found be neutral (65.15 %) followed by alkaline (24.33%) and acidic (10.52 %) and low (68.09%) to medium (31.65%) range in EC values. Organic carbon content was found lower (89.64%) in majority of the soils and medium range in 10.02 % soils. Likewise OC values, available N status was in lower limits (63.63 kg ha-1) and 36.37 % soils are in medium range. Available P2O5 status was recorded lower in 91.63 % and medium range in 8.19 % of the soils. Majority of the soils of the Chikkaballapura district is in medium range of available K2O according to critical limits. With respect to Nutrient Index (NI) values for OC, available N, P2O5 and K2O more than 90% soil samples found in lower category with exception to Chikkaballapura taluk for N and K2O. In this study, it was found that most of the examined soils are in low in important parameters such as OC, N, P2O5 and K2O. In this context, the adoption of appropriate soil management strategies would be helpful to improve the low and medium soil nutrient index of the soil.

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Chemical properties of emissions from solid residential fuels used for energy in the rural sector of the southern region of India

Mandal

Yadav

Sharma

et al. 2022

Environ Sci Pollut Res

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Phosphorus Status in Soils of Eastern Dry Zone, Karnataka

Cited by 4 publications

References 5 publications

Status of available phosphorus, forms and distribution of phosphorus in soil under major cropping systems of Nellore district, A.P

Status of available phosphorus, forms and distribution of phosphorus in soil under major cropping systems of Nellore district, A.P

Assessing the Nutrient Status and Soil Fertility Using Nutrient Indexed of Farmer’s Fields in Chikkaballapura District, Karnataka

Chemical properties of emissions from solid residential fuels used for energy in the rural sector of the southern region of India

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