Assessment of soil fertility status of district Karnal, Haryana
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Date
2022-07
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CCSHAU Hisar
Abstract
In order to evaluate soil fertility status of district Karnal, Haryana two hundred and thirty surface soil samples were randomly collected from all the blocks of Karnal using GPS. The results revealed that the pH range of Assandh, Indri, Nilokheri, Karnal and Gharaunda blocks were 6.7-8.7, 7.7-8.9, 7.1-8.7, 7.9-8.9 and 7.3-8.8,respectively, indicating that the soils of all the blocks of Karnal are neutral to alkaline in reaction. The electrical conductivity of the soil of Assandh, Indri, Nilokheri, Karnal and Gharaunda blocks were ranged from 0.09 - 0.68, 0.08 - 0.62, 0.13 - 0.90, 0.10 - 0.67 and 0.09 - 1.34 dS m-1 with a mean value of 0.30, 0.24, 0.40, 0.25 and 0.25 dS m-1 respectively, indicating that most of the samples were non-saline in nature. The OC content in soils of different blocks of Karnal viz.Assandh, Indri, Nilokheri, Karnal and Gharaunda ranged from 0.07-1.12, 0.07-1.03, 0.12-1.12, 0.11-0.82 and 0.10-0.79 % with mean values of 0.60, 0.45, 0.41, 0.42 and 0.54 % respectively. The maximum number of soil samples i.e. 72, 45, 56 and 84% fall under medium category (0.40%-0.75%) in Assandh, Indri, Karnal and Gharaunda block respectively as far as OC content was concerned. The available nitrogen content of the soils ranged from 86.0-249.0 Kg ha-1 in Assandh, 79.4-238.1 Kg ha-1 in Indri, 93.0-200.8 Kg ha-1 in Nilokheri, 110.3-195.84 Kg ha-1 in Karnal and 108.0-200.6 Kg ha-1 in Gharaunda with a mean value of 169.05, 147.44, 150.24, 147.41 and 160.23 Kg ha-1 respectively. All the soil samples were found deficient in available nitrogen content. The phosphorous content of soils ranged from 20.0-68.0 kg ha-1 in Assandh, 9.0-52.2 kg ha-1 in Indri, 9.0-39.80 kg ha-1 in Nilokheri, 8.0 - 38.40 kg ha-1 in Karnal and 14.8-49.8 kg ha-1 in Gharaunda block with a mean value of 33.16, 25.58, 24.19, 21.28 and 27.94 kg ha-1, respectively. 94% samples in Assandh block, 78% of samples in Indri block, 74% of samples in Nilokheri block, 58% of samples in Karnal block and 76 % in Gharaunda block fall under high soil phosphorus content. Six per cent in Assandh block, 21% in Indri block, 23% in Nilokheri block 39% in Karnal block and 24% in Gharaunda block fall under medium soil P rating. The potassium content of the Assandh block varied from 79.5-753.8 kg ha-1with a meanvalue of 337.64 kg ha-1, Indri block varied from 79.5 - 697.3 kg ha-1 with a mean value of 251.82 kg ha-1, Nilokheri block varied from 97.1 - 417.87 kg ha-1 with a mean value of 239.57 kg ha-1, Karnal block varied from 86.3 - 522.2 kg ha-1 with a mean value of 261.75 kg ha-1 and Gharaunda block varied from 70.00-749.00 kg ha-1 with a mean value of 207.89 kg ha-1. The soils of all blocks of Karnal district fall under medium soil potassium range i.e. 46 % in Assandh, 79% in Indri, 77% in Nilokheri, 69% in Karnal and 65% in Gharaunda block. In Assandh block 48% soil samples were in high potassium range. The sulphur content of soil ranged from 19.91-76.23, 16.8-53.9, 16.23-69.37, 22.34-54.96 and 16.8-54.72 kg ha-1 in Assandh, Indri, Nilokheri, Karnal and Gharaunda blocks respectively. The sulphur content of all blocks of Karnal district fall under the medium category i.e. 77, 89, 84 and 87% in Assandh, Indri, Nilokheri and Gharaunda blocks, respectively.