Vol. 7, Special Issue 6 (2019)
Effect of long-term conservation agriculture on physical properties of soil in north Bihar condition
Author(s): SK Nirala, Anshu Kumar and R Suresh
Abstract: A research work entitled “Effect of long-term Conservation Agriculture on Soil Physical Properties†was conducted at R.P.C.A.U, Pusa (Samastipur), Bihar. The experiment was carried out with five treatments, namely T1 - puddled transplanted rice+ conventional tillage shown wheat (PTR-CTW); T2-puddled transplanted rice + zero tillage shown wheat (PTR-ZTW); T3 - zero tillage rice + zero tillage shown wheat + crop residues (ZTR-ZTW+R); T4 - zero tillage rice- zero tillage shown wheat and without crop residues(ZTR-ZTW-R) and T5 -permanent bed direct seeded rice+ permanent beds direct shown wheat +crop residues (PBDSR-PBW+R). It was found that the physical properties of soil were superior in treatment T5 and inferior in treatment T1. At 0-5 cm soil depth the dry bulk density was lowest in treatment T5 (1.104g/cm2) and highest in treatment T1 (1.357g/cm3); at 5-15cm soil depth it was lowest in treatment T3 (1.246g/ cm3) while highest in treatment T1 (1.398g/ cm3). At the depth 5- 15cm the dry bulk density was noticed in T5 (1.25g/cm3) and slightly higher than the treatment T3. In regard to variation in soil porosity it was found that the porosity was decreasing in trend with increase in soil depth. At the depth of 0 - cm it was highest about 10.30% in treatment T1 and at the depth 5 -10cm it was 2.97% in treatment T5 over conventional treatment T1, and so on. Amongst all five treatments the highest infiltration rate 3.0cm /h was in treatment T5. Similarly, the variation in field capacity was noticed to be highest in treatment T5 to the tune of 36.0%.
Pages: 713-717 | 498 Views 106 Downloads
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How to cite this article:
SK Nirala, Anshu Kumar and R Suresh. Effect of long-term conservation agriculture on physical properties of soil in north Bihar condition. International Journal of Chemical Studies. 2019; 7(6): 713-717.
