The University of Queensland

Technical Management of soil physical and chemical constraints to grains cropping in Queensland and New South Wales: A review. Technical Final report (UQ00084)

Menzies, Neal , Page, Kathryn , Dalal, Ram , Dang, Yash , Kopittke, Peter , Wehr, Bernhard , Orton, Thomas , Kirchhof, G. and Fujinuma, R. (2017). Technical Management of soil physical and chemical constraints to grains cropping in Queensland and New South Wales: A review. Technical Final report (UQ00084). Canberra, ACT, Australia: GRDC.

Soil fertility in sweetpotato-based cropping systems in the highlands of Papua New Guinea

Gunnar Kirchhof ed. (2009). Soil fertility in sweetpotato-based cropping systems in the highlands of Papua New Guinea. ACIAR technical reports, Canberra, ACT, Australia: Australian Centre for International Agricultural Research.

Puddling: effect on soil physical properties and crops

Kirchhof, Gunnar, Tuong, T. P. and So, H. B. (2011). Puddling: effect on soil physical properties and crops. Encyclopedia of agrophysics. (pp. 667-668) edited by Jan Gliński, Józef, Horabik and Jerzy Lipiec. Dordrecht, Netherlands: Springer. doi: 10.1007/978-90-481-3585-1_129

An analysis of village garden management in the Papua New Guinea highlands

Wegener, M., Kirchhof, G. and Wilson, T. (2009). An analysis of village garden management in the Papua New Guinea highlands. Soil fertility in sweetpotato-based cropping systems in the highlands of Papua New Guinea. (pp. 88-94) edited by Gunnar Kirchhof. Canberra, ACT, Australia: Australian Centre for International Agricultural Research.

Biophysical constraints of sweetpotato-based cropping systems in the Papua New Guinea highlands

Kirchhof, Gunnar, Taraken, Issac T., Ramakrishna, Akkinapally, Ratsch, Rainer and Igua, Passinghan (2009). Biophysical constraints of sweetpotato-based cropping systems in the Papua New Guinea highlands. Soil fertility in sweetpotato-based cropping systems in the highlands of Papua New Guinea. (pp. 95-109) edited by Gunnar Kirchhof. Canberra, A.C.T., Australia: Australian Centre for International Agricultural Research.

Changing tillage management practices and their impact on soil structural properties in north-western New South Wales, Australia

Kirchhof, Gunnar and Daniells, Ian (2009). Changing tillage management practices and their impact on soil structural properties in north-western New South Wales, Australia. Soil fertility in sweetpotato-based cropping systems in the highlands of Papua New Guinea. (pp. 60-69) edited by Gunnar Kirchhof. Canberra, ACT, Australia: Australian Centre for International Agricultural Research.

Overview of soil conservation technologies and their perception by farmers in Nigeria

Junge, B., Deji, O., Abaidoo, R., Chikoye, D. and Kirchhof, G. (2009). Overview of soil conservation technologies and their perception by farmers in Nigeria. Soil fertility in sweetpotato-based cropping systems in the highlands of Papua New Guinea. (pp. 49-59) edited by Gunnar Kirchhof. Canberra, ACT, Australia: Australian Centre for International Agricultural Research.

Soil management in the northern Guinea savanna of Nigeria

Kirchhof, G., Odunze, A. C. and Salako, F. K. (2009). Soil management in the northern Guinea savanna of Nigeria. Soil fertility in sweetpotato-based cropping systems in the highlands of Papua New Guinea. (pp. 43-48) edited by Gunnar Kirchhof. Canberra, ACT, Australia: Australian Centre for International Agricultural Research.

Statistical methods for a soil fertility management survey analysis in Papua New Guinea

Kravchuk, O., Wilson, T. and Kirchhof, G. (2009). Statistical methods for a soil fertility management survey analysis in Papua New Guinea. Soil fertility in sweetpotato-based cropping systems in the highlands of Papua New Guinea. (pp. 79-87) edited by Gunnar Kirchhof. Canberra, ACT, Australia: Australian Centre for International Agricultural Research.

Survey methodology to assess socioeconomic and biophysical constraints—lessons learnt in the highlands of Papua New Guinea

Kirchhof, G., Taraken, I.T., Ratsch, R., Kapal, D. and Igua, P. (2009). Survey methodology to assess socioeconomic and biophysical constraints—lessons learnt in the highlands of Papua New Guinea. Soil fertility in sweetpotato-based cropping systems in the highlands of Papua New Guinea. (pp. 70-78) edited by Gunnar Kirchhof. Canberra, ACT, Australia: Australian Centre for International Agricultural Research.

Plastic properties

Kirchhof, Gunnar (2007). Plastic properties. Encyclopedia of soil science. edited by Rattan Lal. New York, United States: Taylor & Francis. doi: 10.1081/E-ESS-120001587

Responses of soil organic carbon, aggregate diameters, and hydraulic properties to long-term organic and conventional farming on a Vertisol in India

Schweizer, Steffen A., Graf-Rosenfellner, Markus, Bhat, Nisar A., Kayser, Gilles, Sisodia, Bhupendra S., Kirchhof, Gunnar, Zikeli, Sabine, Cadisch, Georg and Bhullar, Gurbir S. (2022). Responses of soil organic carbon, aggregate diameters, and hydraulic properties to long-term organic and conventional farming on a Vertisol in India. Land Degradation and Development, 33 (5), 785-797. doi: 10.1002/ldr.4216

50 years of continuous no-tillage, stubble retention and nitrogen fertilization enhanced macro-aggregate formation and stabilisation in a Vertisol

Hati, Kuntal M., Jha, Pramod, Dalal, Ram C., Jayaraman, Somasundaram, Dang, Yash P., Kopittke, Peter M., Kirchhof, Gunnar and Menzies, Neal W. (2021). 50 years of continuous no-tillage, stubble retention and nitrogen fertilization enhanced macro-aggregate formation and stabilisation in a Vertisol. Soil and Tillage Research, 214 105163, 1-11. doi: 10.1016/j.still.2021.105163

Gamma irradiation with 50 kGy has a limited effect on agronomic properties of air-dry soil

Wehr, J. Bernhard and Kirchhof, Gunnar (2021). Gamma irradiation with 50 kGy has a limited effect on agronomic properties of air-dry soil. Soil Systems, 5 (2) 28, 28. doi: 10.3390/soilsystems5020028

Management of the major chemical soil constraints affecting yields in the grain growing region of Queensland and New South Wales, Australia – a review

Page, K. L., Dalal, R. C., Wehr, J. B., Dang, Y. P., Kopittke, P. M., Kirchhof, G., Fujinuma, R. and Menzies, N. W. (2018). Management of the major chemical soil constraints affecting yields in the grain growing region of Queensland and New South Wales, Australia – a review. Soil Research, 56 (8), 765-779. doi: 10.1071/sr18233

Root zone temperature alters storage root formation and growth of sweetpotato

Taranet, P., Kirchhof, G., Fujinuma, R. and Menzies, N. (2018). Root zone temperature alters storage root formation and growth of sweetpotato. Journal of Agronomy and Crop Science, 204 (3), 313-324. doi: 10.1111/jac.12262

Intensified sweetpotato production in Papua New Guinea drives plant nutrient decline over the last decade

Fujinuma, Ryosuke, Kirchhof, Gunnar, Ramakrishna, Akkinapally, Sirabis, William, Yapo, Jeffery, Woruba, Deane, Gurr, Geoff and Menzies, Neal (2018). Intensified sweetpotato production in Papua New Guinea drives plant nutrient decline over the last decade. Agriculture, Ecosystems & Environment, 254, 10-19. doi: 10.1016/j.agee.2017.11.012

The effect of salinity on plant-available water

Sheldon, Anna R., Dalal, Ram C., Kirchhof, Gunnar, Kopittke, Peter M. and Menzies, Neal W. (2017). The effect of salinity on plant-available water. Plant and Soil, 418 (1-2), 477-491. doi: 10.1007/s11104-017-3309-7

Growth and yield response of glasshouse- and field-grown sweetpotato to nitrogen supply

Taranet, Prapa, Harper, Stephen, Kirchhof, Gunnar, Fujinuma, Ryosuke and Menzies, Neal (2017). Growth and yield response of glasshouse- and field-grown sweetpotato to nitrogen supply. Nutrient Cycling in Agroecosystems, 108 (3), 309-321. doi: 10.1007/s10705-017-9858-6

Pests, diseases and crop protection practices in the smallholder sweetpotato production system of the highlands of Papua New Guinea

Gurr, G.M., Johnson, A.C., Waruba, D.N., Kirchhof, G., Fujinuma, R., Sirabis, W., Jeffery, Y. and Akkinapally, R. (2016). Pests, diseases and crop protection practices in the smallholder sweetpotato production system of the highlands of Papua New Guinea. PeerJ, 4 (12) e2703, e2703. doi: 10.7717/peerj.2703

Early response of soil properties and function to riparian rainforest restoration

Gageler, Rose, Bonner, Mark, Kirchhof, Gunnar, Amos, Mark, Robinson, Nicole, Schmidt, Susanne and Shoo, Luke P. (2014). Early response of soil properties and function to riparian rainforest restoration. PLoS One, 9 (8) e104198, e104198.1-e104198.8. doi: 10.1371/journal.pone.0104198

Soil organic carbon and total nitrogen under Leucaena leucocephala pastures in Queensland

Radrizzani, Alejandro, Shelton, H. Max, Dalzell, Scott A. and Kirchhof, Gunnar (2011). Soil organic carbon and total nitrogen under Leucaena leucocephala pastures in Queensland. Crop and Pasture Science, 62 (4), 337-345. doi: 10.1071/CP10115

In vitro starch digestion and potassium release in sweet potato from Papua New Guinea dagger

Liu, Yun, Sabboh, Houda, Kirchhof, Gunnar and Sopade, Peter (2010). In vitro starch digestion and potassium release in sweet potato from Papua New Guinea dagger. International Journal of Food Science and Technology, 45 (9), 1925-1931. doi: 10.1111/j.1365-2621.2010.02356.x

Sensitivity of drainage to rainfall, vegetation and soil characteristics

Bah, A.R., Kravchuk, O. and Kirchhof, G. (2009). Sensitivity of drainage to rainfall, vegetation and soil characteristics. Computers And Electronics In Agriculture, 68 (1), 1-8. doi: 10.1016/j.compag.2009.03.005

Fitting performance of particle-size distribution models on data derived by conventional and laser diffraction techniques

Bah, A.R., Kravchuk, O. and Kirchhof, G. (2009). Fitting performance of particle-size distribution models on data derived by conventional and laser diffraction techniques. Soil Science Society of America Journal, 73 (4), 1101-1107. doi: 10.2136/sssaj2007.0433

A preliminary diagnosis and recommendation integrated system (DRIS) model for diagnosing the nutrient status of sweet potato (Ipomea batatas)

Ramakrishna, A., Bailey, J. S. and Kirchhof, G. (2009). A preliminary diagnosis and recommendation integrated system (DRIS) model for diagnosing the nutrient status of sweet potato (Ipomea batatas). Plant and Soil, 316 (1-2), 107-116. doi: 10.1007/s11104-008-9763-5

An evaluation of nutritional constraints on sweet potato (Ipomoea batatas) production in the central highlands of Papua New Guinea

Bailey, J. S., Ramakrishna, A. and Kirchhof, G. (2009). An evaluation of nutritional constraints on sweet potato (Ipomoea batatas) production in the central highlands of Papua New Guinea. Plant and soil, 316 (1-2), 97-105. doi: 10.1007/s11104-008-9762-6

Influence of hydraulic loading and effluent flux on surface surcharging in soil absorption systems

Beal, C.D., Rassam, D.W., Gardner, E.A., Kirchhof, G. and Menzies, N. W. (2008). Influence of hydraulic loading and effluent flux on surface surcharging in soil absorption systems. Journal of Hydrologic Engineering, 13 (8), 681-692. doi: 10.1061/(ASCE)1084-0699(2008)13:8(681)

Relationships between important soil variables in moderately acidic soils (ph>5.5)in the highlands of Papua New Guinea and management implications for subsistence farmers

Bailey, J.S., Ramakrishna, A. and Kirchhof, G. (2008). Relationships between important soil variables in moderately acidic soils (ph>5.5)in the highlands of Papua New Guinea and management implications for subsistence farmers. Soil Use And Management, 24 (3), 281-291. doi: 10.1111/j.1475-2743.2008.00161.x

An evaluation of Colwell-P as a measure of plant-available phosphorus in soils of volcanic and non-volcanic origins in the highlands of Papua New Guinea

Kirchhof, G., Ramakrishna, K. and Bailey, J.S. (2008). An evaluation of Colwell-P as a measure of plant-available phosphorus in soils of volcanic and non-volcanic origins in the highlands of Papua New Guinea. Soil Use And Management, 24 (4), 331-336. doi: 10.1111/j.1475-2743.2008.00160.x

Ground cover by three crops cultivated on marginal lands in southwestern Nigeria and implications for soil erosion

Salako, E. K., Olowokere, E. A., Tian, G., Kirchhof, G. and Osiname, O. (2007). Ground cover by three crops cultivated on marginal lands in southwestern Nigeria and implications for soil erosion. Spanish Journal of Agricultural Research, 5 (4), 497-505. doi: 10.5424/sjar/2007054-272

Long-term flow rates and biomat zone hydrology in soil columns receiving septic tank effluent

Beal, CD, Gardner, EA, Kirchhof, G and Menzies, NW (2006). Long-term flow rates and biomat zone hydrology in soil columns receiving septic tank effluent. Water Research, 40 (12), 2327-2338. doi: 10.1016/j.watres.2006.04.018

Management of a previously eroded tropical Alfisol with herbaceous legumes: Soil loss and physical properties under mound tillage

Salako, F. K., Kirchhof, G. and Tian, G. (2006). Management of a previously eroded tropical Alfisol with herbaceous legumes: Soil loss and physical properties under mound tillage. Soil & Tillage Research, 89 (2), 185-195. doi: 10.1016/j.still.2005.07.010

Soil particles in agricultural landscapes of a derived savanna in southwestern Nigeria and implications for selectedsoil properties

Salako, K., Tian,, Kirchhof, G. and Akinbola, G.E. (2006). Soil particles in agricultural landscapes of a derived savanna in southwestern Nigeria and implications for selectedsoil properties. Geoderma, 137 (1-2), 90-99. doi: 10.1016/j.geoderma.2006.06.017

NAIAD: sharing lessons from innovative urban water schemes

Loetscher, T., Dart, P. J., Kirchhof, G. and Gray, S. (2005). NAIAD: sharing lessons from innovative urban water schemes. Water, 32 (6), 60-62.

Rice growth and post-rice mungbean in relation to two puddling intensities under glasshouse conditions

Kirchhof, G. and So, H. B. (2005). Rice growth and post-rice mungbean in relation to two puddling intensities under glasshouse conditions. Australian Journal of Soil Research, 43 (5), 623-628. doi: 10.1071/SR04067

Soil puddling for rice production under glasshouse conditions—its quantification and effect on soil physical properties

Kirchhof, G. and So, H. B. (2005). Soil puddling for rice production under glasshouse conditions—its quantification and effect on soil physical properties. Australian Journal of Soil Research, 43 (5), 617-622. doi: 10.1071/SR04068

Field hydraulic properties of an Alfisol under various fallow systems in southwestern Nigeria

Salako, F.K. and Kirchhof, G. (2003). Field hydraulic properties of an Alfisol under various fallow systems in southwestern Nigeria. Soil Use And Management, 19 (4), 340-346. doi: 10.1111/j.1475-2743.2003.tb00324.x

A technique to assess small-scale heterogeneity of chemical properties in soil aggregates

Kirchhof, G. and Daniel, H. (2003). A technique to assess small-scale heterogeneity of chemical properties in soil aggregates. Australian Journal of Soil Research, 41 (5), 919-932. doi: 10.1071/SR02125

Crop establishment of legumes in rainfed lowland rice-based cropping systems

Rahmianna, AA, Adisarwanto, T, Kirchhof, G and So, HB (2000). Crop establishment of legumes in rainfed lowland rice-based cropping systems. Soil and Tillage Research, 56 (1-2), 67-82. doi: 10.1016/S0167-1987(00)00123-9

Growth and yield response of grain legumes to different soil management practices after rainfed lowland rice

Kirchhof, G., So, H. B., Adisarwanto, T., Utomo, W. H., Priyono, S., Prastowo, B., Basir, M., Lando, T. M., Subandi, Dacanay, E. V., Tan-Elicano, D. and Sanidad, W. B. (2000). Growth and yield response of grain legumes to different soil management practices after rainfed lowland rice. Soil and Tillage Research, 56 (1-2), 51-66. doi: 10.1016/S0167-1987(00)00122-7

Management of clay soils for rainfed lowland rice-based cropping system

So, B. H. B. and Kirchhof, G. (2000). Management of clay soils for rainfed lowland rice-based cropping system. Soil and Tillage Research, 56 (1-2), 1-2. doi: 10.1016/S0167-1987(00)00118-5

The effect of soil puddling on the soil, physical properties and the growth of rice and post-rice crops

Kirchhof, G., Priyono, S., Utomo, W. H., Adisarwanto, T., Dacanay, E. and So, B. H. B. (2000). The effect of soil puddling on the soil, physical properties and the growth of rice and post-rice crops. Soil and Tillage Research, 56 (1-2), 37-50. doi: 10.1016/S0167-1987(00)00121-5

The soil and climate characterisation of benchmark sites for lowland rice-based cropping systems research in the Phillippines and Indonesia

Schafer, B. and Kirchhof, G. (2000). The soil and climate characterisation of benchmark sites for lowland rice-based cropping systems research in the Phillippines and Indonesia. Soil and Tillage Research, 56 (1-2), 15-35. doi: 10.1016/S0167-1987(00)00120-3

Lime-Slotting Technique To Ameliorate Subsoil Acidity In A Clay Soil. II. Effects On Medic Root Growth, Water Extraction And Yield

Jayawardane, N. S., Barrs, H. D., Muirhead, W. A., Blackwell, J., Murray, E. and Kirchhof, G. (1995). Lime-Slotting Technique To Ameliorate Subsoil Acidity In A Clay Soil. II. Effects On Medic Root Growth, Water Extraction And Yield. Australian Journal of Soil Research, 33 (3), 443-459. doi: 10.1071/SR9950443

Lime-slotting technique to ameliorate subsoil acidity in a clay soil. I. effects on soil ph and physical characteristics

Kirchhof, G., Jayawardane, N. S., Blackwell, J. and Murray, E. (1995). Lime-slotting technique to ameliorate subsoil acidity in a clay soil. I. effects on soil ph and physical characteristics. Australian Journal of Soil Research, 33 (3), 425-441. doi: 10.1071/SR9950425

Soil fertility management techniques for increased sweetpotato root yield in Papua New Guinea (PNG) highlands

Jeffrey, Yapo, Sirabis, William, Atung, Cyril, Ramakrishna, Akkinapally, Wehr, Bernhard, Menzies, Neal and Kirchhof, Gunnar (2021). Soil fertility management techniques for increased sweetpotato root yield in Papua New Guinea (PNG) highlands. The Soil Science Australia and the New Zealand Society of Soil Science Joint Conference, Cairns, QLD Australia, 27 June - 2 July 2021.

Sweetpotato yield comparison from pathogen tested and non-pathogen tested vines with coffee pulp in the PNG Highlands

Yeffrey, Yapo, Sirabis, William, Wehr, Bernhard, Menzies, Neal and Kirchhof, Gunnar (2021). Sweetpotato yield comparison from pathogen tested and non-pathogen tested vines with coffee pulp in the PNG Highlands. The Soil Science Australia and the New Zealand Society of Soil Science Joint Conference., Cairns, QLD Australia, 27 June - 2 July 2021.

Assessment of soil structural properties in relation to land use change in South-East Asia

Lastic, Rachel de, Hoàng, Thảo, Nguyen, Phuong, Son, Sovanda, Suos, Vuthy and Kirchhof, Gunnar (2020). Assessment of soil structural properties in relation to land use change in South-East Asia. The Third International Tropical Agriculture Conference TropAg 2019 , Brisbane, QLD Australia, 11–13 November 2019. Basel, Switzerland: MDPI. doi: 10.3390/proceedings2019036182

Jatropha curcas development as intervention potential to tackling land, energy and food challenges of rural communities in dryland sub-Saharan Africa

Ogunwole, Joshua, Kirchhof, Gunnar, Birhanu, Birhanu Z., Duiker, Sjoerd and Pires, Luiz F. (2020). Jatropha curcas development as intervention potential to tackling land, energy and food challenges of rural communities in dryland sub-Saharan Africa. Third International Tropical Agriculture Conference (TROPAG 2019), Brisbane, Australia, 11-13 November 2019. Basel, Switzerland: MDPI . doi: 10.3390/proceedings2019036085

Digestibility of starch and potassium in sweetpotato from Papua New Guinea

Liu, Y., Sabboh, H., Kirchhof, G. and Sopade, P. A. (2009). Digestibility of starch and potassium in sweetpotato from Papua New Guinea. 15th Triennial Symposium of the International Society for Tropical Root Crops, Lima, Peru, 2-6 November 2009. Peru: International Society for Tropical Root Crops.

Soil fertility assessment of soils in the highlands of Papua New Guinea

Kirchhof, G. and Ramakrishna A. (2008). Soil fertility assessment of soils in the highlands of Papua New Guinea. Soils2008 Conference – Soil, the living skin of planet Earth, Palmerston North, New Zealand, 1-5 December 2008. New Zealand: AGMARDT.

Impact of saturated hydraulic conductivity and rainfall on variability of predicted drainage

Bah, Abdul R., Kravchuk, Olena and Kirchhof, Gunnar (2006). Impact of saturated hydraulic conductivity and rainfall on variability of predicted drainage. ASSSI – ASPAC – ACMS National Soils Conference - Soil Science Solving Problems, Adelaide, Australia, 3-7 December 2006. Australia: ASSSI-ASPAC-ACMS.

Naiad: Sharing lessons learned from innovative urban water schemes

Loetscher, T., Gray, S., Kirchhof, G. and Dart, P. (2005). Naiad: Sharing lessons learned from innovative urban water schemes. Ozwater Conference 2005, Brisbane, 8-12 May 2005. [Willoughby, N.S.W]: Australian Water Association.

Nitrogen cycling and grass sustainability in leucana-grass pastures - a research proposal

Radrizzani, A., Shelton, H. M., Kirchof, G. and Dalzell, S. A. (2005). Nitrogen cycling and grass sustainability in leucana-grass pastures - a research proposal. Australian Society of Animal Production, Central Queensland Sub-Branch Mini-conference, Rockhampton, Qld Australia, 5-6 July, 2005.

Soil management practices in northern New South Wales

Kirchhof, G. and Daniells, I. (2003). Soil management practices in northern New South Wales. International Soil Tillage Research Organisation 16th Triennial Conference, The University of Queensland, 13-18 July, 2003. Brisbane: The University of Queensland.

Structural regeneration of puddled soil

Bakti, L.A.A., So, B. H. B., Kirchhof, G. and Yatapanage, K. G. (2003). Structural regeneration of puddled soil. International Soil Tillage Research Organisation 16th Triennial Conference, The University of Queensland, 13-18 July, 2003. Brisbane: The University of Queensland.

The impact of long-term crop rotations and residue management on physical properties of a northern NSW Black earth (Vertosol)

Danesh, M., Daniel, H. and Kirchhof, G. (2002). The impact of long-term crop rotations and residue management on physical properties of a northern NSW Black earth (Vertosol). Australian Society of Soil Science National Conference, Perth, Western Australia, 2-6 December, 2002. Perth, Western Australia: The Australian Society of Soil Science Inc..

Variability of deep drainage: paddock leakiness hot spots

Kirchhof, G., Johnson, I. and Daniel, H. (2002). Variability of deep drainage: paddock leakiness hot spots. Australian Society of Soil Science National Conference, Perth, Western Australia, 2-6 December, 2002. Perth, Western Australia: The Australian Society of Soil Science Inc.

Low input tillage/cropping systems for limited resource areas

So, H. B., Kirchhof, G., Bakker, R. and Smith, G. D. (2001). Low input tillage/cropping systems for limited resource areas. 15th Conference of the International Soil Tillage Research Organization, Texas, United States of America, 02-07 July 2000 JUL 02-07, 2000. Amsterdam, Netherlands: Elsevier. doi: 10.1016/S0167-1987(01)00182-9

Leucaena as an opportunity for recharge management in northern Australia: Fitzroy Basin case study

Shelton, H. M., Kirchhof, G., Emmery, P., Sheehan, W., Rowlings, D., Poole, H. and Budisantoso, E. eds. (2003). Leucaena as an opportunity for recharge management in northern Australia: Fitzroy Basin case study. 9th National Productive Use and Rehabilitation of Saline Lands (PUR$L), Rydges Capricorn Resort, Yeppoon, 29 September - 2 October, 2003. Yeppoon, Queensland: PUR$L.

Soil & Tillage Research

Soil & Tillage Research. (2000). 56 (1-2)

Strengthening capacities to innovate through North-South collaborative agricultural research in Papua New Guinea

Kirchhof, Gunnar (2022). Strengthening capacities to innovate through North-South collaborative agricultural research in Papua New Guinea. Asia-Pacific Islands Rural Advisory Services Network (APIRAS) Hyderabad Telangana, India: Food and Agriculture Organization of the United Nations.

Sustaining soil fertility in support of intensification of Sweetpotato cropping systems

Wehr, Bernhard, Kirchhof, Gunnar and Menzies, Neal (2020). Sustaining soil fertility in support of intensification of Sweetpotato cropping systems. Canberra, ACT, Australia: ACIAR.

Sustaining soil fertility in support of intensification of Sweetpotato cropping systems

Wehr, Bernhard, Kirchhoff, Gunnar and Menzies, Neal (2019). Sustaining soil fertility in support of intensification of Sweetpotato cropping systems. Canberra, ACT, Australia: ACIAR.

Compaction properties of vertisols and their potential effect on sunflower

Kirchhof, Gunnar (1994). Compaction properties of vertisols and their potential effect on sunflower. PhD Thesis, School of Land, Crop and Food Sciences, The University of Queensland. doi: 10.14264/uql.2015.469