Soil influenced by irrigation

The human population on the planet is estimated to reach 9 billion by 2050; this requires significant increase of food production to meet the demands. Intensified farming systems have been identified as a viable means to increase grain production. Crop production inputs include carbon investment in the form of energy, for the manufacture and use of farm machinery, synthetic fertilizers, crop protection chemicals such as herbicides, insecticides and fungicides, groundwater irrigation and the direct use of fuel in farm operations.

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Keeping the above points in view, an experiment was conducted to study the combined effect of irrigation, mulching and INM on nutrient content, nutrient uptake and available nutrients in summer groundnut.

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The field experiment was conducted during summer season of 2013 under irrigated subtropics Shiwalik foot hills to study the effect of different cultivars and planting times of sweet corn on sandy clay loam soil, at the Research Farm of Division of Agronomy, Shere-Kashmir University of Agricultural Sciences and Technology of Jammu.

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Therefore keeping in view of the said facts above, safflower crop yields can be enhanced through integrated nutrient management and adopting soil test based concept, for which the present investigation was initiated.

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The present experimentation was carried out to study the biological properties of the soil as influenced by the conjunctive use of organic sources – farmyard manure and jeevamrutha in Sunflower under irrigated conditions on alfisols of eastern dry zone of Karnataka state.

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Field experiment was conducted at the experimental farm of Department of Soil Science, College of Agriculture, CSK Himachal Pradesh Krishi Vishvavidyalaya, Palampur, to study the effect of drip irrigation and fertigation levels on yield, NPK concentration and their uptake by potato.

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Cassava (Manihot esculenta Crantz) is a perennial shrub and a tuberous root crop well adapted to poor soils and is relatively tolerant to drought, the crop is usually grown under marginal soil and climatic conditions and often with very limited inputs of fertilizers and pesticides. In India, cassava is cultivated in varied agro climatic and pedogenic environments. In Tamil Nadu, it is cultivated mainly for industrial uses, cassava is grown in black soils (Vertisols) and red soils (Alfisols).

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The quality of land development/ levelling is having enormous impact on soil moisture storage and distribution in the field both spatially and temporally, crop growth, yields and irrigation water saving. So, unevenness of agricultural fields leads to the in-efficient use of irrigation water, which in turn reduces the yield and farm income. The quality and accuracy of land levelling determined by term “Levelling index” (LI) are dynamic factors. Consequently, it is imperative to study the impact of levelling indices on soil moisture distribution in fields.

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The brewing industry is one of the largest users of water. Even though substantial technological improvements have been made in the past, it has been documented that approximately 3 to 10 litres of wastewater is generated per litre of beer. Field experiments was conducted at United Breweries (UB) Ltd., Nelamangala and Zonal Agricultural Research Station, UAS, GKVK, Bengaluru in sandy loam soil results revealed that application of 150% RDN through TBWW as 50% basal and 50% in three irrigations recorded significantly higher grain yield (39.6 q ha-1 ) and stover yield (69.

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The field experiment on cotton productivity and leaf reddening as influenced by nutrition management for targeted yield was conducted during growing seasons of 2014-15 and 2015-16 at College of Agriculture Farm, Raichur, Karnataka on medium deep black soil under irrigation.

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The field experiment on cotton productivity and leaf reddening as influenced by nutrition management for targeted yield was conducted during growing seasons of 2014-15 and 2015-16 at College of Agriculture Farm, Raichur, Karnataka on medium deep black soil under irrigation.

8p trinhthamhodang1213 27-05-2020 11 1   Download

The field experiment on cotton productivity and leaf reddening as influenced by nutrition management for targeted yield was conducted during growing seasons of 2014-15 and 2015-16 at College of Agriculture Farm, Raichur, Karnataka on medium deep black soil under irrigation.

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A field experiment was conducted under sandy loam soil during the summer season of 2018 at College Farm, College of Agriculture, Professor Jayashankar Telangana State Agricultural University, Rajendranagar, Hyderabad.

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Nitrogen management strategies developed so far are mainly based on soil tests targeted yield and generally N recommendations are made for large areas which certainly do not take into account the field to field and season to season variability. Nitrogen being the most dynamic nutrient, we have to develop real time N management strategies which are meant by applying the N doses to the crop as and when needed.

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A field experiment was conducted on sandy loam soils of Agricultural Research Station, Jangamaheswarapuram during rabi, 2016-17. The experiment was laid out in split plot design and replicated thrice.

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Low light is one of the most important environmental factors that determine the basic characteristics of rice growth and development. The selected twenty five adopted varieties are grown in Kharif 2016 under both normal and low light condition. The result were found that biochemical parameters such as grain starch content and total carbohydrate content (TCC) was decreased under low light condition and, nitrogen content in leaf was increased at flowering stage, protein content in grain was also affected by low light as well as grain yield and quality of rice.

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Field experiment was conducted during 2017 to study the effect of deficit irrigation practices through drip system and soil moisture distribution in maize. Creation of soil moisture gradient is indispensable to explore the beneficial effects of partial root zone drying (PRD) irrigation and it could be possible only through alternate deficit irrigation (ADI) practice in paired row system of drip layout, which is commonly practiced in India.

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The present study was programmed in 2014-15 to evaluate the efficacy of the varied components of precision farming systems comprising drip irrigation (80% ER), fertigation (75% RDF), micronutrient foliar spray (Commercial formulation ‘Tracel’2%), bunch spray of sulphate of potash (2%) as well as black LDPE film (50µ) mulch over the traditional system of soil nutrient application (110g N, 33g P2O5 and 330g k2O) and flood irrigation (15 day intervals) in ‘Grand Naine’ banana. Components of precision farming significantly increased bunch yield. The highest bunch weight (21.

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A field experiment was conducted during Kharif season of 2008 -2009 at the Main Cotton Research Station, Surat, Navsari Agricultural University to study the “Effect of tillage depth and irrigation levels on cotton under South Gujarat condition”. Nine treatment combinations comprising three tillage depth in main plot viz. normal tillage up to7.5 cm (Di), tillage up to 15 cm (D2) and tillage up to 22.5 cm (D3) as well as three irrigation levels in sub plot viz.

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Photosynthesis is mainly depends on photosynthetic activity and green leaf area duration during grain filling stage, but this trait is highly influenced by environmental factors such as temperature, soil type and amount of rainfall.

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