J. K. Ladha, David Dawe, Himanshu Pathak, A.T Padre et al.
The rice-wheat cropping system, occupying 24 million hectares of the productive area in South Asia and China, is important for food security. Monitoring long-term changes in crop yields and identifying the factors associated with such changes are essential to maintain and/or improve crop productivit...
M.L. Jat, Debashis Chakraborty, J. K. Ladha, D.S. RANA et al.
Mahesh K. Gathala, Virender Kumar, Parbodh Chander Sharma, Yashpal Saharawat et al.
Increasing scarcity of resources (labour, water, and energy) and cost of production, along with climate variability, are major challenges for the sustainability of rice–wheat system in the northwesten Indo-Gangetic Plains (IGP). We hypothesized that adopting the principles of conservation agricultur...
J. K. Ladha, Mark B. Peoples, P. M. Reddy, Jatish Chandra Biswas et al.
The demand for nitrogen (N) for crop production increased rapidly from the middle of the twentieth century and is predicted to at least double by 2050 to satisfy the on-going improvements in productivity of major food crops such as wheat, rice and maize that underpin the staple diet of most of the w...
Virender Kumar, H.S. Jat, Parbodh Chander Sharma, Balwinder Singh et al.
In the most productive area of the Indo-Gangetic Plains in Northwest India where high yields of rice and wheat are commonplace, a medium-term cropping system trial was conducted in Haryana State. The goal of the study was to identify integrated management options for further improving productivity a...
Maya Kohli-Lynch, Neal Russell, Anna C. Seale, Ziyaad Dangor et al.
BACKGROUND: Survivors of infant group B streptococcal (GBS) disease are at risk of neurodevelopmental impairment (NDI), a burden not previously systematically quantified. This is the 10th of 11 articles estimating the burden of GBS disease. Here we aimed to estimate NDI in survivors of infant GBS di...
Madhu Choudhary, Ashim Datta, H.S. Jat, Arvind K. Yadav et al.
Debashis Chakraborty, J. K. Ladha, D.S. RANA, M.L. Jat et al.
Abstract Alternative tillage and rice establishment options should aim at less water and labor to produce similar or improved yields compared with traditional puddled-transplanted rice cultivation. The relative performance of these practices in terms of yield, water input, and economics varies acros...
David Dawe, Achim Dobermann, J. K. Ladha, R. L. Yadav et al.
Opinions differ as to the importance of organic amendments (OA) for sustaining crop productivity in the intensive, irrigated rice systems of Asia. Our objectives were to (1) quantify the effects of farmyard manure (FYM) and straw incorporation on yield trends in long-term experiments (LTEs) with ric...
J. K. Ladha, M.L. Jat, Clare Stirling, Debashis Chakraborty et al.
The crucial link between agricultural growth and the Sustainable Development Goals (SDGs) set by the United Nations Development Programme is established through efficient use of nitrogen in the cereal production systems. Nitrogen, mostly in its reactive form as fertilizer or synthetic N, governs the...
J. K. Ladha, A. N. Rao, Anitha Raman, Agnes Tirol‐Padre et al.
South Asian countries will have to double their food production by 2050 while using resources more efficiently and minimizing environmental problems. Transformative management approaches and technology solutions will be required in the major grain-producing areas that provide the basis for future fo...
M. Murshedul Alam, Md. Rezaul Karim, J. K. Ladha
The major cereal cropping system in Bangladesh is rice (Oryza sativa L.) in the dry season (Boro) – rice in the wet season (Aman). The average productivity (7tha−1) of this system is far below attainable yields (14tha−1) in farmers’ fields, resulting in a large yield gap mainly due to farmers’ tradi...
M. Murshedul Alam, J. K. Ladha, Foyjunnessa, Muhammad Ziaur Rahman et al.
The rice (Oryza sativa L.)–wheat (Triticum aestivum L.) system in the Indo-Gangetic Plain often experiences low N use efficiency due to inefficient management of fertilizer N. We evaluated the leaf color chart (LCC) as a simple tool for improving fertilizer N use in rice and wheat in farmers’ fields...
M. Murshedul Alam, J. K. Ladha, S. Rahman Khan, Foyjunnessa et al.
Nitrogen (N) fertilizer, while essential for high yield and profit in rice ( Oryza sativa L.) farming, is often managed inefficiently by Asian rice farmers. We evaluated the leaf color chart (LCC) as a simple tool for improving the time and rate of N fertilizer use in farmers’ fields with no limitat...
Yashpal Saharawat, J. K. Ladha, Himanshu Pathak, Mahesh K. Gathala et al.
The Rice-wheat (RW) cropping system is one of the major agricultural production systems in four Indo-Gangetic Plains (IGP) countries: India, Pakistan, Bangladesh and Nepal of South Asia covering about 32% of the total rice area and 42% of the total wheat area. The excessive utilization of natural re...