NDLI: Testing and validation of an expert system for making liming decisions

Content Provider	Springer Nature Link
Author	Dierolf, T.S Amien, Le I. Yost, R.S.
Copyright Year	1999
Abstract	Computer-based technologies are becoming increasingly important in translating the wealth of agricultural research information into forms that can be used by extension workers. The Acidity Decision Support System (ADSS) is a computer-based expert system that diagnoses and corrects Al-toxicity problems on highly-weathered mineral soils. The objectives of this work were to use published data to evaluate and provide recommendations to improve the ADSS knowledge base. The relative yield-Al saturation curves used by ADSS satisfactorily predict the results of field experiments for maize and soybean, but needs to be improved for rice and cassava. Curves used by ADSS for all four crops should, however, be updated to represent the research data better. Insufficient data were obtained to evaluate other crops satisfactorily. ADSS predicted that more lime would be needed to reduce soil Al saturation than was actually needed. This can be corrected by changing the value of the liming factor (LF) constant in ADSS to better represent the capability of liming materials to neutralize soil Al in the field. ADSS also predicted more response of rice and soybean to lime in on-farm experiments than occurred in practice, although there was a correlation between predicted and actual relative yield for soybean. ADSS should indicate the chances that the predicted relative yield response will not occur because of factors other than liming, under normal farming conditions. The Smyth and Cravo equation provides a reasonable estimate, in lieu of alternatives, of the change in soil Al saturation for up to five years after liming.
Starting Page	9
Ending Page	20
Page Count	12
File Format	PDF
ISSN	13851314
Journal	Nutrient Cycling in Agroecosystems
Volume Number	54
Issue Number	1
e-ISSN	15730867
Language	English
Publisher	Kluwer Academic Publishers
Publisher Date	1999-01-01
Publisher Place	Dordrecht
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Soil Science & Conservation
Content Type	Text
Resource Type	Article
Subject	Agronomy and Crop Science Soil Science

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

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