Efficient Weed Management Practices for Organic Rice Production System | Chapter 10 | Research Advances and Challenges in Agricultural Sciences Vol. 2

This study was conducted to find out the effective weed management option for organic rice and to work out the economics of such weed management practices for organic rice. Weed is a ubiquitous species that competes with important crops for light, nutrients, space, and water, resulting in a deterioration of the perfect environment for crop growth. A field trial was conducted during kharif  season of  2017-18 and 2018-19 in red sandy clay loam soils of Agricultural Research Station, Ragolu. The trial was taken up with ten organic weed management treatments in randomized block design in three replications. From the data analysed for two years it was  revealed that weeds can be managed  in organic rice by  Summer ploughing followed by  Green manuring followed by 3 weeks puddling  interval +  One conoweeding at 15 days after transplanting +Need based hand  weeding at 40 days after transplanting  as it has recorded the highest mean grain yield (6542 kg/ha), Weed Control Efficiency (77.77%) and benefit cost ratio(1.50) as compared to other organic methods and hence can be recommended for organic rice production. As proposed climate change models indicate increased variability of growing season weather shifts in weed communities and increased competitiveness of weeds it will become more difficult to predict the severity of crop–weed interference. Future weed management research should emphasize the development of robust tools and management techniques to overcome this variability and uncertainty.

Author(s) Details:

Ramana Murthy K. V.,
Agricultural Research Station, Ragolu, Srikakulam District, A.P., India.

Adilakshmi D.,
Agricultural Research Station, Ragolu, Srikakulam District, A.P., India.

Upendra Rao A.,
Agricultural Research Station, Ragolu, Srikakulam District, A.P., India.

Please see the link here: https://stm.bookpi.org/RACAS-V2/article/view/13071=

Weed Management in Conservation Agriculture | Chapter 12 | Emerging Issues in Agricultural Sciences Vol. 6

 Given the current shortage of natural resources and the changeable nature of the climate, preservation agriculture (CA) is a efficient alternative. As a result, it is increasingly being used in rainfed extents to conserve soil and water. Herbicide use or manual destroy is both effective habits to manage the grass problem in CA. In conservation farming, weed control is considerably influenced by farming, crop establishment methods, apparatus, agronomic practices, etc. Conservation cultivation places a strong priority on capital preservation and prohibits the use of chemical compound. Under conservation agriculture, weeds maybe reduced by utilizing crop rotation, compatible type collection with optimum seed rates, farming with sufficient soil destroying, cover crops, and appropriate water management. In CA, the use of herbicides has raised because of high labor costs and proper unavailability. The sustainability of preservation agriculture can be revised by implementing joined weed management, as a sole herbicide cannot efficiently control a wide variety of weeds.

Author(s) Details:

Koushik Sar,
Department of Agronomy, Faculty of Agricultural Sciences, Siksha ‘O’ Anusandhan, Bhubaneswar, Odisha, India.

Ipsita Padhi,
Department of Agronomy, Faculty of Agricultural Sciences, Siksha ‘O’ Anusandhan, Bhubaneswar, Odisha, India.

Please see the link here: https://stm.bookpi.org/EIAS-V6/article/view/11428

Common Allergenic Weeds: Their Pollen Morphology and Management Measures | Chapter 1 | Emerging Challenges in Agriculture and Food Science Vol. 2

 Weeds and plants typically produce enough lightweight pollen to pollinate themselves. In a single day, a single plant can produce 1 million to several million pollen grains; exposure to these can cause pollen allergy, seasonal rhinitis/ rhinosinusitis, asthma, and dermatitis, among other things. The link between the start of symptoms and plant pollination time is the most important factor in allergenic response. According to various studies, weed pollens are responsible for 60-75 percent of seasonal rhinitis, grass weed pollens for 40%, and tree pollens for 10%. The pollination season of different plants varies depending on the species and their geographic location. Flowering/pollination seasons, pollen morphology, and control techniques of common allergenic weeds are discussed in this research. Weeds can be eradicated before flowering and used as biomass in agriculture and industry, depending on their pollination cycle.

Author(S) Details

Srihari Reddy Devarinti
Government Degree College, Patancheru, Sanga Reddy (Dist.), Telangana, India.

View Book:- https://stm.bookpi.org/ECAFS-V2/article/view/4898

Integrated Weed Management in Ginger (Zingiber officinale) for Higher Productivity in Plains of Assam | Chapter 8 | New Ideas Concerning Science and Technology Vol. 12

 During 2014-15 and 2015-16, a field experiment was conducted at the Assam Agricultural University's Instruction-cum-Research Farm in Jorhat district, Assam, India, to identify a suitable combination of ginger and cowpea intercropping, as well as various weed management practises, to effectively manage weeds in ginger. Since it is a widely spaced and long-lasting crop, growers have plenty of opportunities to use the available vacant space throughout the rhizome's early growth stage to plant any short-term leguminous intercrop. Four legume intercropping systems and four weed control practises were considered in a total of 16 treatment combinations. Legume crop intercropping Cowpea planted between rows of Ginger and incorporated at 40 days after sowing (DAS) or between alternate rows of Ginger and incorporated at 40 days after sowing (DAS) and pre-emergence application of Metribuzin 500 g ai ha-1 + hand weeding (HW) at 70, 100, and 140 days after planting (DAP) produced better ginger growth and rhizome yield.

Author (s) Details

Aparna Baruah
Corteva Agriscience, Kolkata-700157, West Bengal, India

Jayanta Deka
Department of Agronomy, Assam Agricultural University, Jorhat-785013, Assam, India

View Book :- https://stm.bookpi.org/NICST-V12/article/view/778