SRI Global News: February - April 2024 **sririce -- System of Rice Intensification
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SRI Global News: February - April 2024 **sririce -- System of Rice Intensification
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April 30, 3:23 PM
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INDIA: System of Wheat Intensification (SWI): Effects on Lodging Resistance, Photosynthetic Efficiency, Soil Biomes, and Water Productivity

INDIA: System of Wheat Intensification (SWI): Effects on Lodging Resistance, Photosynthetic Efficiency, Soil Biomes, and Water Productivity | SRI Global News: February - April 2024 **sririce -- System of Rice Intensification | Scoop.it

Intense cultivation with narrow row spacing in wheat, a common practice in the Indo-Gangetic plains of South Asia, renders the crop more susceptible to lodging during physiological maturity. This susceptibility, compounded by the use of traditional crop cultivars, has led to a substantial decline in overall crop productivity. The results of a two-year field study on the system of wheat intensification (SWI) was conducted suggested that adoption of SWI at 20 cm × 20 cm resulted in significantly higher intercellular CO2 concentration (5.9–6.3%), transpiration rate (13.2–15.8%), stomatal conductance (55–59%), net photosynthetic rate (126–160%), and photosynthetically active radiation (PAR) interception (1.6–25.2%) over the existing conventional method (plant geometry 22.5 cm × continuous plant to plant spacing) of wheat cultivation.

 

The lodging resistance capacity of both the lower and upper 3rd nodes was significantly higher in the SWI compared to other cultivation methods. In addition, adoption of the SWI at 20 cm × 20 cm enhanced crop grain yield by 36.9–41.6%, and biological yield by 27.5–29.8%.. Further, increased root volumes, surface root density and higher NPK uptake were recorded under SWI at 20×20 cm in comparison to rest of the treatments. Therefore, adoption of SWI at 20 cm ×20 cm  and square planting  (with cultivars HD 2967) might be the best strategy for enhancing crop productivity and resource-use efficiency.

SRI-Rice's insight:

r.K. Singh, P.K. Upadhyay, et al. 2024. System of wheat intensification (SWI): Effects on lodging resistance, photosynthetic efficiency, soil biomes, and water productivity. PLoS ONE 19(4): e0299785. doi:10.1371/journal.pone.0299785

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April 9, 2020 12:01 PM
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BELGIUM / NETHERLANDS: Seeding Rates -- Influence on Phenotypic Expression of Wheat Populations for Participatory Plant Breeding

BELGIUM / NETHERLANDS: Seeding Rates -- Influence on Phenotypic Expression of Wheat Populations for Participatory Plant Breeding | SRI Global News: February - April 2024 **sririce -- System of Rice Intensification | Scoop.it

 In Belgium and The Netherlands, bread wheat (Triticum aestivum L.) is getting attention. The few varieties available are pure lines that do not match the range of environments and organic farming practices, so  yields and milling quality are often disappointing.

 

Composite Cross Populations (CCP) have been created with the idea of evolutionary plant breeding through on-farm mass selection and seed saving. In 2015–2016, one CCP of winter wheat was cropped side by side with a pure line variety in four organic farms with different wheat cropping practices. Seeding rates ranged from the standard high to the very low ones practiced under the System of Wheat Intensification (SWI). Multivariate data analysis confirmed greater differentiation of the CCP both compared with pure line varieties and within populations where inter-plant competition was less intense. Low seeding rates seem to enhance phenotypic expression potential of a CCP, yet this is often neglected by plant breeders. Since both CCP and SWI have great potential for ecological intensification within organic farming, more work is needed to combine innovation in farming practices and on-farm plant breeding.

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January 12, 2018 2:38 PM
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AFGHANISTAN: The System of Wheat Intensification (SWI) in Afghanistan - YouTube

In Afghanistan, weeds are the major problem in wheat cultivation. To improve the productivity of wheat, the FAO-MAIL IPM project introduced the System of Wheat Intensification (SWI) several years ago. Two simple devices were introduced. The first one is a wooden rake suitable to make furrows in perfect rows. The rake can be pulled by animals or by hand. Seeds are then sown in the furrows by hands or by drum seeders, another tool to make sowing faster. After germination of the seeds, when plants are 4 to 5 centimeters tall, the second device, a rotary weeder cleans the weeds and aerates the soil, which supports better growth of wheat plants. Two to three times weeding at 10-15 days intervals is sufficient. [For larger-scale projects,  mechanical drum seeders can be attached to a tractor or power tiller.] 

SRI-Rice's insight:

The System of Wheat Intensification (SWI) is based on SRI principles. A version of this video in Afghanistan's Dari language is also available at https://www.youtube.com/watch?v=aGJZoj_iWkE

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August 27, 2020 12:18 PM
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INDIA: Financial Security from Agriculture | Rajiv Gandhi Charitable Trust

INDIA: Financial Security from Agriculture | Rajiv Gandhi Charitable Trust | SRI Global News: February - April 2024 **sririce -- System of Rice Intensification | Scoop.it

RGMVP teaches System of Rice Intensification (SRI) and System of Wheat Intensification (SWI), which leads to yield improvement due to better root development... The farmers trained in SRI/SWI methods have experienced yields increase by 30 per cent.

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June 5, 2018 4:57 PM
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UTTAR PRADESH, INDIA: Bumper vegetable, wheat yields push back farm distress in UP

UTTAR PRADESH, INDIA: Bumper vegetable, wheat yields push back farm distress in UP | SRI Global News: February - April 2024 **sririce -- System of Rice Intensification | Scoop.it

At a time when farmers  are feeling marginalised, many unable to meet the rising costs of seeds and fertilisers, and weighed down by loans they are unable to pay back, farmers from Chittaura block of Bahraich, Uttar Pradesh, with help from the Aga Khan Foundation (AKF), are upbeat. Their fields are lush green with vegetables and golden brown with the ripened and harvested wheat.

Using System of Rice Intensification (SRI) and System of Wheat Intensification (SWI), yields of both crops have increased 50 to 100 per cent; additional income has come from high value vegetables.

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December 6, 2017 3:53 PM
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System of crop intensification for more productive, resource-conserving, climate-resilient, and sustainable agriculture: experience with diverse crops in varying agroecologies

System of crop intensification for more productive, resource-conserving, climate-resilient, and sustainable agriculture: experience with diverse crops in varying agroecologies | SRI Global News: February - April 2024 **sririce -- System of Rice Intensification | Scoop.it

[This article has been made open-access by SRI-Rice] "The ideas and methods of the system of rice intensification which is improving irrigated rice production are now being extended/adapted to many other crops: wheat, maize, finger millet, sugarcane, tef, mustard, legumes, vegetables, and even spices. Promoting better root growth and enhancing the soil’s fertility with organic materials are being found effective means for raising the yields of many crop plants with less water, less fertilizer, reduced seeds, fewer agrochemicals, and greater climate resilience. In this article, we review what is becoming known about various farmer-centred innovations for agroecological crop management that can contribute to agricultural sustainability. These changes represent the emerging system of crop intensification, which is being increasingly applied in Asian, African, and Latin American countries.

SRI-Rice's insight:

Adhikari, Prabhakar, et al. 2017. System of crop intensification for more productive, resource-conserving, climate-resilient, and sustainable agriculture: experience with diverse crops in varying agroecologies. International Journal of Agricultural Sustainability (Online first Nov. 20, 2017) 1-28.

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