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Impact of integrated nutrient management on plant and soil nutrient status in sweet orange (Citrus sinensis L.) cv. Phule Mosambi was investigated for two consecutive years i.e. 2019 and 2020 at the Horticultural Research Farm, College of Horticulture, Anand Agricultural University, Anand. The experiment was laid out in completely randomized design (CRD) comprised of 11 treatments replicated thrice. Significantly higher yield was recorded with T11 [50% Recommended Dose of Nitrogen (RDN) + 20 kg farmyard manure (FYM)/tree +25% nitrogen (N) from Castor Cake + 10 ml Bio NPK Consortium + Micronutrient foliar spray (1% Grade IV)] (17.35 and 17.01 t/ha) which was at par with T10 (15.92 and 15.56 a t/ha) during 2019 and 2020, respectively. Amongst the treatments, T11 had increased the nutrient contents of soil as well as in plant and recorded maximum available nitrogen (N), available potassium (K), soil boron (B) content, plant nitrogen (N) content, plant iron (Fe) content, plant copper (Cu) content and plant boron (B) content in both the years whereas available phosphorous (P) was found higher in treatment T7 in both the years. Treatment T8 recorded highest soil copper (Cu) content in both the years. As far as plant zinc (Zn) content is concerned, it was found higher in treatment T9 in both the years. [ABSTRACT FROM AUTHOR]

Nutrient uptake by plant and nutrient status of soil after harvesting of crop varies markedly under fertigation and soil fertilization. A two year experiment was conducted at Vegetable Research Centre of G.B. Pant University of Agriculture and Technology, Pantnagar, Uttarakhand, India during the rabi seasons of 2016–2017 and 2017–2018 to study the effect of drip fertigation with levels and scheduling on nutrient uptake, soil nutrient status and water use efficiency in broccoli. The experiment was laid out in two factorial randomized block design with one additional treatment consisting of five fertigation levels and three fertigation scheduling along with control (soil application of RDF with flooding) replicated thrice. Increasing the fertigation levels favors in increasing the nitrogen, phosphorus and potassium uptake irrespective of the crop growth stage. At harvest, N, P and K uptake by broccoli under fertigation increased by 10.47, 17.39, 12.21% and 18.08, 15.88, 9.96% compared to the soil fertilization in the first and second year, respectively. Fertigation treatment increased the available phosphorus by 11.73 kg compared to soil fertilization. Available potassium content in soil after harvesting of crop depleted when compared to initial value. The consumptive water used for both the years varies between 150 mm and 195 mm under different fertigation treatments as compared to 300–325 mm under traditional method of irrigation. Fertigation treatments registered significantly higher WUE of 78.31 kg ha−1 mm−1 and it was higher by 95.48% over the conventional method of irrigation (40.06 kg ha−1 mm−1). [ABSTRACT FROM AUTHOR]