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  1. Article ; Online: Effect of green manure and plant density on correlation between rhizospheric bio-chemical properties and rice (Oryza sativa) yield

    Jaspreet Kaur / S K Gosal / S S Walia

    The Indian Journal of Agricultural Sciences, Vol 90, Iss

    2020  Volume 2

    Abstract: The present investigation was carried out to evaluate the effect of application of green manure along with varying plant density on microbial population and soil enzymatic activities of rhizospheric soil as well as on yield of rice (Oryza sativa L.) ... ...

    Abstract The present investigation was carried out to evaluate the effect of application of green manure along with varying plant density on microbial population and soil enzymatic activities of rhizospheric soil as well as on yield of rice (Oryza sativa L.)during year 2013–14. Application of green manures @15 t/ha and increased plant density up to 44 plants/m2 positively enhanced microbial population in the soil. Correlation among different microbial population, soil enzymatic activities and soil nutrient status in different treatments irrespective of the time intervals showed that the treatments with higher plant density along with green manure showed a significant positive correlation between dehydrogenase enzyme and bacterial as well as with fungal population. On contrary, treatment having sole application of inorganic fertilizer with 22 plants/m2; actinomycetes and bacterial population had significant positive correlation with dehydrogenase activity whereas fungal population showed a negative relationship. The soil urease and alkaline phosphatase activity had positive correlation with bacterial and fungal population in all treatments except the treatment with 22 plants/ m2 + recommended inorganic fertilizers. There was significant negative correlation between fungal population and diazotrophic population in all treatments. The plant height and various yield attributes were significantly higher in treatment having green manure (15 t/ha) + 44 plants/m2+ recommended NPK. Thus, above finding revealed that the agronomic practices (green manure and increased plant density) significantly improved the interaction of microbial population and soil enzymatic activities in rhizospheric soil which in turn affect the soil fertility as well as rice yield.
    Keywords Green manure ; Microbial population ; Plant density ; Rice ; Soil enzymatic activities ; Agriculture ; S
    Language English
    Publishing date 2020-03-01T00:00:00Z
    Publisher Indian Council of Agricultural Research
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  2. Article ; Online: Bio-intensive complimentary cropping systems for north-west India

    S S WALIA / R S GILL / TAMANPREET KAUR / C S AULAKH

    The Indian Journal of Agricultural Sciences, Vol 92, Iss

    2022  Volume 8

    Abstract: A field experiment was conducted during 2014–15 and 2015–16 at Punjab Agricultural University, Ludhiana to evaluate bio-intensive complementary cropping systems as a possible replacement of the prevailing rice (Oryza sativa L.)-wheat (Triticum aestivum L. ...

    Abstract A field experiment was conducted during 2014–15 and 2015–16 at Punjab Agricultural University, Ludhiana to evaluate bio-intensive complementary cropping systems as a possible replacement of the prevailing rice (Oryza sativa L.)-wheat (Triticum aestivum L.) cropping system. The treatments comprised 12 cropping systems and were set in a three-time replicated randomized block design. The results revealed that maize (Zea mays L.) (cobs) + vegetable cowpea [Vigna unguiculata (L.) Walp.] + Sesbania-gram (Cicer arietinum L.) + gobhi sarson (Brassica napus L.) cropping system showed maximum rice equivalent yield (229.9 q/ha), production efficiency (79.4 kg/day/ha) and net returns (`30,6066/ha). These systems also ensured saving of 127.5 cm irrigation water over the existing rice-wheat system (247.5 cm) and proved to be a viable option to avail higher profitability for farmers in Punjab. The removal of N, P and K was significantly higher in all the maize based cropping systems over rice-wheat cropping system. In addition, maize (furrow) + turmeric (Curcuma longa L.) (bed)-wheat (bed) + linseed (Linum usitatissimum L.) (furrow) cropping system gave highest viable counts of actinomycetes and fungi, whereas maize (furrow) + turmeric (bed)-barley (Hordeum vulgare L.) (bed) + linseed (furrow) gave highest count for bacteria. The fodder based cropping system, viz. sorghum [Sorghum bicolor (L.) Moench] + cowpea (fodder)-wheat + gobhi sarson with high energy output showed the highest energy-use efficiency (48.28) and energy output efficiency (6.35×103 MJ/ha/day). Maize (cobs)+vegetable cowpea + Sesbania-gram + gobhi sarson cropping system showed the highest average maximum energy productivity (8.24 kg REY/MJ) and it was mainly due to its higher REY.
    Keywords Rice equivalent yield ; production efficiency ; net returns ; energy use efficiency and energy productivity ; Agriculture ; S
    Subject code 571
    Language English
    Publishing date 2022-03-01T00:00:00Z
    Publisher Indian Council of Agricultural Research
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  3. Article: Soil nutrient status and yield of rice as affected by long-term integrated use of organic and inorganic fertilizers

    Gosal, S. K / G. K. Gill / S. S. Walia / Sandeep Sharma

    Journal of plant nutrition. 2018 Feb. 25, v. 41, no. 4

    2018  

    Abstract: Nutrient balance is the key component to increase crop yields. Excess and imbalanced use of nutrients has caused nutrient mining from the soil and deteriorated crop productivity and ultimately soil health. Replenishment of these nutrients has a direct ... ...

    Abstract Nutrient balance is the key component to increase crop yields. Excess and imbalanced use of nutrients has caused nutrient mining from the soil and deteriorated crop productivity and ultimately soil health. Replenishment of these nutrients has a direct impact on soil health and crop productivity. Based on this fact, the present research was conducted to determine the effects of long-term integrated use of organic and inorganic fertilizers on soil nutrient status and yield (grain and straw) in rice. Different combinations of inorganic nitrogen (N) and organic sources (sewage sludge and compost) were applied to the soil. Data revealed that application of mineral NPK in combination with 50% N through compost significantly increased the organic matter content (0.36%), available phosphorus (16.50 kg/ha) and available potassium content (239.80 kg/ha) in soil. The maximum available N (225.12 kg/ha) was found by the substitution of 50% N through sewage sludge. This improvement in soil nutrient status through combined use of organic and inorganic fertilizers produced significant increase in grain and straw yield as compared to inorganic fertilizers alone. Maximum grain (6.96 t/ha) and straw (8.56 t/ha) yields were found in treatment having substitution of 50% N (recommended) through compost @10t/ha. Also, a significant positive correlation was found between soil nutrients and straw and grain yield in rice. Thus the study demonstrated that substitution of 50% inorganic N through compost will be a good alternative for improving soil fertility.
    Keywords composts ; grain yield ; mineral fertilizers ; nitrogen ; nutrient balance ; nutrients ; organic matter ; phosphorus ; potassium ; rice ; sewage sludge ; soil ; soil fertility ; soil nutrients ; soil quality ; straw
    Language English
    Dates of publication 2018-0225
    Size p. 539-544.
    Publishing place Taylor & Francis
    Document type Article
    ZDB-ID 446190-3
    ISSN 1532-4087 ; 0190-4167
    ISSN (online) 1532-4087
    ISSN 0190-4167
    DOI 10.1080/01904167.2017.1392570
    Database NAL-Catalogue (AGRICOLA)

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  4. Article ; Online: Long-term effect of fertilization and manuring on soil aggregate carbon mineralization

    RAJENDRA KUMAR YADAV / T J PURAKAYASTHA / NAYAN AHMED / RUMA DAS / BIDISHA CHAKRABARTY / SUNANDA BISWAS / V K SHARMA / POOJA SINGH / DAIZEE TALUKDAR / K K MOURYA / S S WALIA / ROHITASAV SINGH / V K SHUKLA / M S YADAVA / N RAVISANKAR / BASU DEVI YADAV

    The Indian Journal of Agricultural Sciences, Vol 91, Iss

    2021  Volume 2

    Abstract: The 32 years impact of manuring and fertilization on carbon mineralization in macro- and micro-aggregates in major soil groups of India was studied. Mollisol, Inceptisol, Vertisol, and Alfisol samples were collected (0-15 cm soil depth) from the ... ...

    Abstract The 32 years impact of manuring and fertilization on carbon mineralization in macro- and micro-aggregates in major soil groups of India was studied. Mollisol, Inceptisol, Vertisol, and Alfisol samples were collected (0-15 cm soil depth) from the treatments comprising of control, 100% NPK, 50%NPK+50% N-FYM, 50%NPK+50%N-WR (Wheat residue), 50% NPK + 50% N-GM (Green manure) in the year 2015. The results showed that the mineralizable C pool was significantly higher in treatments applied with 50%NPK+50%N-GM in Mollisol and Vertisol. In Alfisol and Inceptisol, 50% NPK+50% N-FYM and 50% NPK+50% N-GM were significantly higher in both macroaggregates and micro-aggregates protected carbon. Supplementation of fertilizer N either through FYM or various green manuring crops like Sesbania (Sesbania aculeata L. in Inceptisol), greengram (Vigna radiata L. in Mollisol), sunhemp (Crotalaria juncea L. in Vertisol) and karanj (Pongamia pinnata L. in Alfisol) significantly improved mineralizable carbon pool signifying their potential contributions to nutrient cycling and thereby nutrient availability to various crops in the cropping systems in the above soils.
    Keywords Carbon mineralization ; FYM ; Macro-aggregates ; Micro-aggregates ; Soil organic matter ; Soil organic carbon ; Agriculture ; S
    Subject code 550
    Language English
    Publishing date 2021-04-01T00:00:00Z
    Publisher Indian Council of Agricultural Research
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  5. Article ; Online: Farm typology for planning targeted farming systems interventions for smallholders in Indo-Gangetic Plains of India

    Jashanjot Kaur / A. K. Prusty / N. Ravisankar / A. S. Panwar / M. Shamim / S. S. Walia / S. Chatterjee / M. L. Pasha / Subhash Babu / M. L. Jat / Santiago López-Ridaura / Jeroen C. J. Groot / Roos Adelhart Toorop / Luis Barba-Escoto / Kohima Noopur / Poonam Kashyap

    Scientific Reports, Vol 11, Iss 1, Pp 1-

    2021  Volume 16

    Abstract: Abstract Due to complexity of smallholder farms, many times technologies with great potential fail to achieve the desired impact in leveraging productivity and profitability of the farming community. In the Indo-Gangetic Plains there is an urgent need to ...

    Abstract Abstract Due to complexity of smallholder farms, many times technologies with great potential fail to achieve the desired impact in leveraging productivity and profitability of the farming community. In the Indo-Gangetic Plains there is an urgent need to understand the diversity of farm households, identifying the main drivers deciding their system thus, classifying them into homogenous groups. In the present study, the diversity of smallholder farms was assessed using crop, livestock and income related characteristics and associated farm mechanization. Using principal component analysis and cluster analysis for 252 farm households, 4 farm types were identified i.e. Type 1. Small Farm households with cereal-based cropping system and subsistence livestock (39%), Type 2. Small Farm households with diversified cropping system dominated by cereal and fodder crops with only cattle herd (9%), Type 3. Marginal Farm household with diversified cropping system dominated by cash crop and herd comprising of only cattle (39%), Type 4. Marginal Farm household with diversified cropping system dominated by cereal crops and herd dominated by small ruminants (12%). Based on the constraints identified for different components of farming systems, low-cost interventions were planned for each farm type. These interventions have resulted in 84.8–103.2 per cent increase in the income of the farm HH under study suggesting usefulness of typology-based intervention planning in increasing income of small farm holders.
    Keywords Medicine ; R ; Science ; Q
    Subject code 571 ; 338
    Language English
    Publishing date 2021-10-01T00:00:00Z
    Publisher Nature Portfolio
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  6. Article ; Online: Acoustic neuroma presenting as refractory trigeminal neuralgia

    Ruchi Gupta / S S Walia / Dushant Thaman

    Indian Journal of Anaesthesia, Vol 50, Iss 3, Pp 218-

    2006  Volume 218

    Keywords Anesthesiology ; RD78.3-87.3 ; Surgery ; RD1-811 ; Medicine ; R
    Language English
    Publishing date 2006-01-01T00:00:00Z
    Publisher Medknow Publications
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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