Integrated management of Meloidogyne graminicola under basmati rice (Oryza sativa)-wheat (Triticum aestivum) cropping system

Abstract

Survey conducted in and around village Bambawad, Gautam Budh Nagar, UP, for nematode population density infested basmati rice and wheat during 2015 indicated low population of rice root-knot nematode, Meloidogyne graminicola in IPM adopted fields compared with farmer's practices (FP). With this view, the study was carried out to manage M. graminicola under basmati rice (Oryza sativa L.)-wheat (Triticum aestivum L.) cropping system taking advantage of IPM technology developed and validated by ICAR-NCIPM for basmati rice during 2016-19 with some modifications such as soil solarisation, bio-agents etc. Soil solarisation of nursery beds reduced population density of test nematode up to 93.4%, whereas an increase of up to 46% in FP compared to initial population. Analysis of root and soil samples of both rice and wheat crop from IPM fields showed either no visible galling or only 1-3% root galling severity (RGS) and significantly (P>0.05) low population density compared to FP. In addition, the population of beneficial soil nematodes (BSN) remained high and significantly (P>0.05) higher in IPM as compared to FP with student's t-test. Role of BSN in increasing the nutrient availability through organic matter decomposition has already been established. It is evident from the study that IPM technology might have played important role in antagonising the M. graminicola and increased the density of BSN. This technologycould be a safe and eco-friendly alternative to manage M. graminicola below ETL. Also, it has helped in sustaining IPM by the way of saving on the cost of application of pesticides and enhancing the benefit-cost ratio.

Impact of Rice Residue Management Practices on Growth and Productivity of Wheat (Triticum aestivum L.)

“…was recorded with T 1 (control) treatment. Similar results of increase in yield parameters upon nutrient fortification and supplementation with organic inputs were reported by Singh et al [18] Pandey et al [17].…”

Effect of nutrient management and weed control practices on growth parameters of wheat (Triticum aestivum L.)

“…Higher number of tillers in these treatments were due to adequate amount of nutrients at active growth stages that supplied by RDF, FYM and nano-urea. Singh et al (2007) [14] , Desai et al (2015) [5] and Aatif et al (2017) [1} reported the similar result. In case of weed control practices, weed free treatment resulted the maximum number of tillers m -2 (217.33, 220.50), (296.63, 297.61), (312.23, 314.13), and (306.10, 308.23) viz.…”

EFFECT OF AGRONOMIC MANIPULATIONS AND THEIR INTERACTIONS ON YIELD, SOIL FERTILITY AND NUTRIENT UPTAKE IN DIFFERENT VARIETIES OF WHEAT UNDER IRRIGATED CONDITIONS OF J&K UNION TERETORY, INDIA

“…Kachroo and Razdan (2006) also recorded the similar findings. Singh and Yadav (2006) also recorded significant difference among different doses of N for available nitrogen in soil after harvest in wheat crop.…”