Reference health
Rice-wheat cropping system: assessment of sustainability under green manuring and chemical fertilizer inputs
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15/15 checkable references clean · checked 2026-07-23
Every reference with a DOI in the deposited reference list resolved to a known work in Crossref or DataCite at the dated check, and none carried a retraction, withdrawal, or removal notice.
23 without a DOI — not checked. A reference deposited without a DOI is never matched by title or guessed at; it stays outside the checked set, and this line discloses that.
The 15 checked references that resolve
resolves10.1080/15324989209381306
Effect of green manuring with<i>sesbania aculeata</i>on physical properties of soil and on growth of wheat in rice‐wheat and maize‐wheat cropping systems in a semiarid region of India
resolves10.2136/sssaj1998.03615995006200050024x
Manuring and Soil Type Influence on Spatial Variation of Soil Organic Matter Properties
resolves10.1016/0378-4290(95)00101-8
Nitrogen-use efficiency in tropical lowland rice systems: contributions from indigenous and applied nitrogen
resolves10.1016/S0378-4290(97)00140-8
Opportunities for increased nitrogen-use efficiency from improved resource management in irrigated rice systems
resolves10.1017/S002185960008285X
Organic and chemical sources of nitrogen: its effect on nitrogen transformation and rice productivity under submerged conditions
resolves10.1016/0038-0717(77)90032-3
Influence of organic matter on the chemical and electrochemical properties of some flooded soils
resolves10.1007/978-1-4612-5090-6_2
The Effect of Green Manuring on the Physical Properties of Temperate-Area Soils
resolves10.1017/S0021859600086779
Integrated management of <i>Sesbania, Azolla</i> and urea nitrogen in lowland rice under a rice–wheat cropping system
resolves10.1007/BF02327255
Effect of Sesbania, Azolla and rice straw incorporation on the kinetics of NH4, K, Fe, Mn, Zn and P in some flooded rice soils
resolves10.1111/j.1365-2389.1996.tb01403.x
Changes in chemical properties of organic matter with intensified rice cropping in tropical lowland soil
resolves10.1017/S0014479798001070
FACTOR PRODUCTIVITY TRENDS IN A RICE–WHEAT CROPPING SYSTEM UNDER LONG-TERM USE OF CHEMICAL FERTILIZERS
resolves10.1023/A:1009744719420
Long term effects of inorganic fertilizer inputs on crop productivity in a rice-wheat cropping system
The 23 references without a DOI — listed, not checked
no DOI — not checkedSubstitution of nitrogen through green manure in rice
no DOI — not checkedCassman, K.G., De Datta, S.K., Olk, D.C., Alcantara, J.M., Samson, M.I., Descalsota, J., Dizon, M.A., 1995. Yield decline and the nitrogen economy of long-term experiments on continuous, irrigated rice-wheat systems in the tropics. In: Lal, R., Stewart, B.A. (Eds.), Soil Management: Experimental Basis for Sustainability and Environmental Quality. Lewis Publishers, Boca Raton, FL, pp. 181–222.
no DOI — not checkedCassman, K.G., Pingali, P.L., 1995. Extrapolating trends from long-term experiments on farmers’ fields: the case study of irrigated rice systems in Asia. In: Barnet, V., Payne, R., Steiner, R. (Eds.), Agricultural Sustainability: Economic, Environmental and Statistical Considerations. Wiley, Chichester, UK, pp. 63–84.
no DOI — not checkedCIMMYT, 1990. (Centro International de Mejoramiento de Maiz y Trigo), Rice-wheat cropping systems in the tarai areas of Nainital, Rampur and Pilibhit districts in Uttar Pradesh, India. In: Diagnostic Surveys of Farmers’ Practices and Problems, and Needs for Further Research. CIMMYT, Mexico, 55pp.
no DOI — not checkedCIMMYT, 1992. (Centro International de Mejoramiento de Maiz y Trigo), Rice-wheat in Karnal and Kurukshetra districts, Haryana, India. In: Exploratory Surveys of Farmers’ Practices and Problems, and an Agenda for Action. CIMMYT, Mexico, 44 pp.
no DOI — not checkedNutrient management in rice-wheat cropping system in India
no DOI — not checkedIITA, 1992. (International Institute of Tropical Agriculture), Medium-Term Plan 1994–1998. IITA, Ibadan, Nigeria.
no DOI — not checkedEffect of Sesbania straw in a flooded soil on soil pH, redox potential, and water-soluble nutrients
no DOI — not checkedKohli, M., Mann, C.E., Rajaram, R., 1991. Global status and recent progress in breeding wheat for the warmer areas. In: Wheat for Warmer Tropical Areas. CIMMYT, Mexico.
no DOI — not checkedLadha, J.K., Kundu, D.K., 1997. Legumes for sustaining soil fertility in lowland rice. In: Rupela, O.P., Johansen, C., Herridge, D.F. (Eds.), In: Extending Nitrogen Fixation Research to Farmers’ Fields: Proceedings of an International Workshop on Managing Legume Nitrogen Fixation in the Cropping Systems of Asia. ICRISAT Asia Centre, Patancheru, India, pp. 76–102.
no DOI — not checkedSense and sustainability: sustainability as an objective in international agricultural research
no DOI — not checkedMann, R.A., Garrity, D.P., 1994. Green manures in rice-wheat cropping systems in Asia. In: Ladha, J.K., Garrity, D.P. (Eds.), Green Manure Production Systems for Asian Ricelands. IRRI, Los Banos, Philippines, pp. 27–42.
no DOI — not checkedFertilizer use in rice-based cropping systems in northern India
no DOI — not checkedNambiar, K.K.M., 1994. Soil Fertility and Crop Production under Long-term Fertilizer Use in India. ICAR, New Delhi, India.
no DOI — not checkedPage, A.L., Millar, R.H., Keeney, D.R., 1982. In: Methods of Soil Analysis, Part 2. Am. Soc. Agron. Inc. and Soil Sci. Soc. Am. Inc. Publishers, Madison WI, USA.
no DOI — not checkedPagiola, S., 1995. Environmental and Natural Resource Degradation in Intensive Agriculture in Bangladesh: Environment Economics Series Paper No. 15. The World Bank, Environment Department, Washington DC, USA.
no DOI — not checkedSingh, R.P., Das, S.K., Bhaskara Rao, U.M., Narayana Reddy, M., 1990. Towards Sustainable Dryland Agricultural Practices. CRIDA, Hyderabad, India.
no DOI — not checkedTakkar, P.N., Nayyar, V.K., 1986. Integrated approach to combat micronutrient deficiency. Paper presented at the seminar on Gowth and modernisation of the fertilizer industry, 15–17 December 1986, FAI, New Delhi, India.
no DOI — not checkedTandan, H.L.S., Sekhon, G.S., 1988. Potassium research and agricultural production in India, FDCO, New Delhi, India.
no DOI — not checkedTimsina J., Singh, U., Singh, Y., Lansigan, F.P., 1995. Addressing sustainability of rice-wheat system: Testing of CERES and Sucros models. In: Proceedings of International Rice Research Conference, 13–17 February 1995. IRRI, Los Banos, Philippines, pp. 633–656.
no DOI — not checkedFertilizer management in cropping systems for increased efficiency
no DOI — not checkedTiwari, K.N., Dwivedi, B.S., Subba Rao, A., 1992. Potassium management in rice-wheat cropping systems. In: Pandey, R.K, Dwivedi, B.S., Sharma, A.K. (Eds.), Rice-Wheat Cropping System. PDCSR, Modipuram, India, pp. 94–114.
no DOI — not checkedYadav, R.L., Prasad, K., Dwivedi, B.S., Tomar, R.K., Singh A.K., 1998b. Cropping systems. In: Singh, G.B., Sharma, B.R. (Eds.), Fifty Years of Natural Resource Management Research in India. ICAR, New Delhi, India, pp 413–446.
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