Browsing by Author "Rajesh Kaushal"

Now showing 1 - 2 of 2

Effect of organic, inorganic and plant growth promoting rhizobacteria (PGPR) on growth and yield of cabbage in mid hills of himachal pradesh and study of their economics
(Society for Plant Research, 2017) P. Yadav Ram; A.K. Sharma; Rajesh Kaushal; Maneesh Kumar Singh; Ashish Kumar Maurya
The present investigation was carried out with cabbage cv. Pusa Mukta in a randomized complete block design with three replications with the objective to evolve integrated plant nutrient supply system for higher productivity of cabbage on sustainable basis. The experiment comprised of 15 different combinations of three different sources of nutrients including organic, inorganic and PGPR alone and in combinations which were applied following the proper procedures as per treatment. Integrated use of fertilizers, manures and PGPR significantly influenced yield and plant growth attributes of cabbage crop. The conjoint use of 75 % recommended dose of NP + Vermi compost and Enriched compost @ 2.5 t/ha + PGPR (T14) resulted in significantly maximum gross head weight (1580 g), net head weight (1050 g), harvesting index (66.45 %) and head yield (530.34 q/ha). This treatment recorded 34.4 per cent increase in yield over recommended practice (T1) along with highest net returns (Rs.3, 89,992/-). From present investigation, it can be concluded that above integrated combination of chemical fertilizers, organic manures (VC and EC) and PGPR resulted in saving of 25 % chemical fertilizers (NP), better growth, higher yield which statistically matched with the recommended package of fertilization which utilized 100 % NPK along with 20 t FYM. © 2017, SPR, All Rights Reserved.
Soil microbial characteristics in sub-tropical agro-ecosystems of North Western Himalaya
(Indian Academy of Sciences, 2018) Rahul Singh; D.R. Bhardwaj; Nazir A. Pala; Rajesh Kaushal; Bhalendra Singh Rajput
Eight predominant land use systems, viz. agriculture (T1), horticulture (T2), agrisilviculture (T3), silvopastoral (T4), agrihorticulture (T5), agrihortisilviculture (T6), forest (T7) and grassland (T8) of subtropical parts of Himachal Pradesh were selected along two altitudinal ranges A1 (365-635 m amsl) and A2 (636- 914 m amsl) to observe the variation in soil microbial activity and microbial characteristics. Agroforestry land uses and forest ecosystems displayed significantly higher microbial counts and microbial biomass carbon than agriculture and grasslands. The CO2 evolution (soil microbial activity) was found higher inagrisilviculture, agrihortisilviculture, forest and grassland use systems at both altitudinal ranges. Soil biological properties (microbial count, microbial biomass and microbial activity) were maximum in forest landuse system. Among the agroforestry land-use systems, agrisilviculture had significantly higher microbial counts. The maximum microbial count (164.50 × 105 cfu g-1 soil) was recorded in forest and remained statistically at par with agrisilviculture (162.34 × 105 cfu g-1 soil). Minimum microbial count (80.66 × 105 cfu g-1 soil) was observed in agriculture land use. At both the altitudinal ranges, the CO2 evolution was highest at 48 h time interval and decreased thereafter. The metabolic quotient (qCO2) indicated that C-use efficiency is higher in grassland use and agriculture land use systems than other studied systems. © 2018 Current Science Association, Bengaluru.