KRISHI
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Please use this identifier to cite or link to this item:
http://krishi.icar.gov.in/jspui/handle/123456789/67437
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DC Field | Value | Language |
---|---|---|
dc.contributor.author | Damodar Reddy, D., Subba Rao, A. Sammi Reddy, K. and Takkar, P.N. | en_US |
dc.date.accessioned | 2021-11-16T06:20:44Z | - |
dc.date.available | 2021-11-16T06:20:44Z | - |
dc.date.issued | 1999-03-17 | - |
dc.identifier.citation | Not Available | en_US |
dc.identifier.issn | Not Available | - |
dc.identifier.uri | http://krishi.icar.gov.in/jspui/handle/123456789/67437 | - |
dc.description | Not Available | en_US |
dc.description.abstract | Low native soil phosphorus (P) availability coupled with poor utilization ef®ciency of added P is a major constraint limiting the productivity of soybean±wheat system on Vertisols in Indian semi-arid tropics. The use of fertilizer P is limited by its high cost, while organic inputs generally cannot provide suf®cient P for optimum crop growth due to their low P concentration. We, therefore, evaluated in a 5-year ®eld experiment (1992±1997) the effects of integrated use of manure and fertilizer P on crop yield sustainability, P utilization and soil P fertility under soybean±wheat system on a Typic Haplustert. The treatments consisted four rates each of manure (applied only to soybean) and fertilizer P (applied to both soybean and wheat) arranged in a split-plot design with four replications. Both soybean and wheat crops responded signi®cantly to the application of manure and fertilizer P. For the same level of P input, the yield increases were greater with manure P than with fertilizer P. Further, integrated use of fertilizer P and manure was better than their sole application in increasing and sustaining the productivity of soybean±wheat system. The P uptake by the crops increased with increasing rates of manure and fertilizer P and was relatively larger in soybean than in wheat. The per cent phosphorus recovery by the crops from fertilizer P decreased with increasing fertilizer P rate, while it was improved in the presence of manure. Though the extent of fertilizer P recovery was more or less similar in both the crops, soybean was more ef®cient than wheat in extracting the soil and manure P. The available P status of the soil showed a signi®cant build-up during successive cropping seasons due to fertilizer P and the increase was strikingly greater when fertilizer P was applied in combination with manure. The integrated use of manure and fertilizer P is a promising strategy to improve soil P fertility status and to obtain higher and sustained productivity of the soybean-wheat cropping system on Vertisols of the semi-arid tropics. # 1999 Elsevier Science B.V. All rights reserved. | en_US |
dc.description.sponsorship | Not Available | en_US |
dc.language.iso | English | en_US |
dc.publisher | Not Available | en_US |
dc.relation.ispartofseries | Not Available; | - |
dc.subject | Soybean-wheat system, Vertisol, Fertilizer P,Manure; Sustainable yield index, Phosphorus utilization, P balance | en_US |
dc.title | Yield sustainability and phosphorus utilization in soybean-wheat system on Vertisols in response to integrated use of manure and fertilizer phosphorus. | en_US |
dc.title.alternative | Not Available | en_US |
dc.type | Research Paper | en_US |
dc.publication.projectcode | Not Available | en_US |
dc.publication.journalname | Field Crop Research | en_US |
dc.publication.volumeno | 62 | en_US |
dc.publication.pagenumber | 181-190 | en_US |
dc.publication.divisionUnit | DRM | en_US |
dc.publication.sourceUrl | Not Available | en_US |
dc.publication.authorAffiliation | ICAR-CRIDA Hyderabad | en_US |
dc.ICARdataUseLicence | http://krishi.icar.gov.in/PDF/ICAR_Data_Use_Licence.pdf | en_US |
dc.publication.naasrating | 10.31 | en_US |
Appears in Collections: | NRM-CRIDA-Publication |
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