ASSESSMENT OF SOIL ENZYME ACTIVITY AS INFLUENCED BY NUTRIENT MANAGEMENT PRACTICES IN A VERTISOL UNDER RICEWHEAT CROPPING SYSTEM

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dc.contributor.advisorBachkaiya, Vinay
dc.contributor.authorYadav, Shivani
dc.contributor.otherTiwari, Alok
dc.contributor.otherSonboir, H.L.
dc.contributor.otherSaxena, R.R.
dc.date.accessioned2021-10-08T08:08:06Z
dc.date.available2021-10-08T08:08:06Z
dc.date.issued2021
dc.descriptionASSESSMENT OF SOIL ENZYME ACTIVITY AS INFLUENCED BY NUTRIENT MANAGEMENT PRACTICES IN A VERTISOL UNDER RICE WHEAT CROPPING SYSTEMen_US
dc.description.abstractThe present investigation entitled “Assessment of soil enzyme activity as influenced by nutrient management practices in a Vertisol under rice-wheat cropping system” was conducted during Kharif 2020 in a Vertisol at Long Term Fertilizer Experiment, Research cum instructional Farm, IGKV, Raipur (Chhattisgarh). The treatments of this long-term experiment comprised of control, 50% NPK, 100% NPK, 150% NPK, 100% NPK + ZnSO4@ 10 kg/ha, “100% NP, 100% N, 100% NPK + FYM @ 5t/ha, 50% NPK + BGA @ 10 kg/ha, 50% NPK + Green Manure” (Sunhemp). The treatments were laid out in Randomized Block Design (RBD) with four replications. Soil bio-chemical characteristics were recorded to be improved with continuous addition of chemical fertilizers in conjunction with organic over only chemical fertilizers. The soil pH and EC doesnot shows to have any significant effect of application of inorganic fertilizers either alone or in combination with organic manure. The organic carbon was recorded to be highest (6.84 g kg-1) in treatment T8 (100% NPK + FYM @ 5 tonnes/ha) and the lowest value (4.14 g kg-1) is observed in treatment T1 (control). The result indicated that application of 150% NPK and conjoint application of organic and inorganic nutrient sources tends to improve the available N, P, K status of soil. The soil enzyme activity, viz. dehydrogenase (55.39 TPF μg 24 hr-1g-1), urease (44.08 μg NH4+ - N g-1 soil hr-1)“acid phosphatase”(76.30“μg p-nitrophenol g-1 hr-1) and“alkaline phosphatase”(52.23“μg p-nitrophenol g-1 hr-1”) were significantly influenced due to addition of 100% NPK + FYM @ 5 tonnes/ha. The results also showed that application 150% NPK and 100% NPK + FYM @ 5 tonnes/ha recorded higher grain (6930 kg/h and 6850 kg/ha respectively) and straw yield (7785 kg ha-1 and 7415 kg ha-1 respectively) as compared to 100% N alone and control. The findings of experiment clearly indicated that continuous balanced use of fertilizers with organic manures, either alone or in combination is vital for enhancing nutrient status, enzyme activity, and yield in a rice-wheat cropping system on Vertisols.en_US
dc.identifier.urihttps://krishikosh.egranth.ac.in/handle/1/5810176792
dc.keywordsSOIL ENZYME ACTIVITY; NUTRIENT MANAGEMENT PRACTICES; VERTISOL; RICE; WHEAT CROPPING SYSTEMen_US
dc.language.isoEnglishen_US
dc.pages86p.en_US
dc.publisherIndira Gandhi Krishi Vishwavidyalaya, Raipuren_US
dc.research.problemASSESSMENT OF SOIL ENZYME ACTIVITY AS INFLUENCED BY NUTRIENT MANAGEMENT PRACTICES IN A VERTISOL UNDER RICEWHEAT CROPPING SYSTEMen_US
dc.subSoil Science and Agriculture Chemistryen_US
dc.themeASSESSMENT OF SOIL ENZYME ACTIVITY AS INFLUENCED BY NUTRIENT MANAGEMENT PRACTICES IN A VERTISOL UNDER RICEWHEAT CROPPING SYSTEMen_US
dc.these.typeM.Scen_US
dc.titleASSESSMENT OF SOIL ENZYME ACTIVITY AS INFLUENCED BY NUTRIENT MANAGEMENT PRACTICES IN A VERTISOL UNDER RICEWHEAT CROPPING SYSTEMen_US
dc.typeThesisen_US
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