~ 639 ~ International Journal of Chemical Studies 2018; 6(3): 639-642 P-ISSN: 2349–8528 E-ISSN: 2321–4902 IJCS 2018; 6(3): 639-642 © 2018 IJCS Received: 08-03-2018 Accepted: 10-04-2018 Shahnaz Mufti Faculty of Horticulture Division of vegetable science Sher-e-Kashmir University of Agricultural Sciences & Technology of Kashmir, Srinagar, Jammu and Kasmir, India Chattoo MA Faculty of Horticulture Division of vegetable science Sher-e-Kashmir University of Agricultural Sciences & Technology of Kashmir, Srinagar, Jammu and Kasmir, India Sumati Narayan Faculty of Horticulture Division of vegetable science Sher-e-Kashmir University of Agricultural Sciences & Technology of Kashmir, Srinagar, Jammu and Kasmir, India Baseerat Afroza Faculty of Horticulture Division of vegetable science Sher-e-Kashmir University of Agricultural Sciences & Technology of Kashmir, Srinagar, Jammu and Kasmir, India Wani KP Faculty of Horticulture Division of vegetable science Sher-e-Kashmir University of Agricultural Sciences & Technology of Kashmir, Srinagar, Jammu and Kasmir, India Rakshanda Bhat Faculty of Horticulture Division of vegetable science Sher-e-Kashmir University of Agricultural Sciences & Technology of Kashmir, Srinagar, Jammu and Kasmir, India Faheema Mushtaq Faculty of Horticulture Division of vegetable science Sher-e-Kashmir University of Agricultural Sciences & Technology of Kashmir, Srinagar, Jammu and Kasmir, India Khursheed Hussain Ajaz Malik Faculty of Horticulture Division of vegetable science Sher-e-Kashmir University of Agricultural Sciences & Technology of Kashmir, Srinagar, Jammu and Kasmir, India Ummyiah Masoodi Faculty of Horticulture Division of vegetable science Sher-e-Kashmir University of Agricultural Sciences & Technology of Kashmir, Srinagar, Jammu and Kasmir, India Correspondence Shahnaz Mufti Faculty of Horticulture Division of vegetable science Sher-e-Kashmir University of Agricultural Sciences & Technology of Kashmir, Srinagar, Jammu and Kasmir, India Effect of different soil amendments on Physico- chemical properties of soil under brinjal- fenugreek cropping sequence Shahnaz Mufti, Chattoo MA, Sumati Narayan, Baseerat Afroza, Wani KP, Rakshanda Bhat, Faheema Mushtaq, Khursheed Hussain, Ajaz Malik and Ummyiah Masoodi Abstract Based on a cropping system, the different soil amendments were used to study its effect on physico- chemical properties of soil. The aim was to explore the effects of different soil amendments on improvement of soil properties and at the same time determine the appropriate application of organic manures and inorganic fertilizers for improved sustainable yields of a cropping system. The study was carried out at the Division of Vegetable Science, SKUAST-Kashmir for two consecutive years without changing the site of experiment. The treatment combinations comprised of thirteen nutrient management practices through different sources viz. organic manures (FYM, poultry manure, vermicompost, sheep manure, dal weed) and inorganic fertilizers (N, P & K), applied alone or in various combinations. After the harvest of last residual crop the soil was analysed for various Physico-chemical properties and it was found that by applying mixture of different organic manures (T6), pH of the soil was lowered significantly as compared to other treatments and recorded a pH of 6.45. Among integration of organic manures with inorganic fertilizers, treatment T9 (50% RFD + 50% PM) recorded a soil pH of 6.59 which was significantly lower than rest of the integrated treatments. The same organic treatment T6 (integration of all organic manures) resulted in improvement of electrical conductivity (EC) and organic carbon (OC) content of the soil recording an EC and OC of 0.33 dsm -1 and 2.98 percent, respectively and was found significantly higher than rest of the treatments. The extent of increase in soil EC and OC due to treatment T6 over initial soil status was 55.45 % and 18.33 % and over treatment T12 (recommended fertilizers dose) was 21.47 % and 15.43 %, respectively. The treatment T12 (RFD) receiving no organic inputs showed least increase in Electrical conductivity and organic carbon content of soil Keywords: Brinjal, cropping sequence, fenugreek, Physico-chemical properties, soil amendments Introduction The growth in agricultural production has to be sustainable. This becomes possible only when soil is in good health. The primary factor having influence on the soil health is the organic matter content of the soil. The organic fraction of cultivated soils is under constant threat of nutrient depletion due to environmental factors and inadequate replenishment. Growing of high yielding varieties of different crops on irrigated lands under increased use of chemical fertilizers has resulted in progressive rise in multi-nutrient deficiencies, nutrient imbalances, deterioration of soil health and productivity with time. As such, the excessive reliance on the energy intensive chemicals without recourse to the replenishment of soil organic matter is an unsound farming practice. On the other hand, use of organic manures alone suffers from drawback of low content of plant nutrients and its slow release characteristics. Therefore, neither organic manures nor chemical fertilizers alone can help in achieving the yield sustainable under highly intensive farming when the nutrient turnover in soil plant system is much larger. Considering the beneficial effect of organic manures on soil health and the environmental problems associated with the excessive and continuous use of inorganic fertilizers, the concept of integrated nutrient management (INM) involving conjunctive use of organic manures and inorganic sources of nutrients assume greater significance. Therefore, an attempt was initiated to study the effect of conjunctive application of organic manures and inorganic fertilizers on Physico-chemical properties of soil under brinjal-fenugreek cropping sequence.