Influence of INM on Nutrient Uptake, Bio-chemical Properties of Soil and Yield Attributes of Paddy (Oryza sativa L.) under Hill Zone of Karnataka

Background: Briquettes is more efficient than conventionally applied nutrients as it reduce the loss of nutrients by obtaining higher yield and decreased the expenditure cost of fertilizers. Indian soils are 49 per cent deficient in zinc which is characterized by widespread Zn deficiency in human beings. Methods: Three different zinc fortified briquettes viz., UB-DAP, UB-suphala and UB-KAB were tested in field experiments during kharif season of 2016-19 to compare and calculate variations in yield, yield attributing characters and nutrients uptake by rice (Oryza sativa L.). Result: The results showed that treatment UB-KAB fortified with 10 kg ZnSO4.7H2O ha-1 (T8) registered higher growth, yield parameters and Zn concentration in grain indicating zinc-sulfate-heptahydrate (ZSHH) offers vital solution to curtail Zn malnutrition. Further, UB-KAB fortified through ZSHH (T8) significantly enhanced the grain (55.2 q ha-1) and straw (63.6 q ha-1) yield of rice over RDF and absolute control. Application of UB-KAB fortified with 10 kg ZnSO4.7H2O ha-1 (T8) significantly increased nutrient uptake of N (97.2 kg ha-1), P (20.2 kg ha-1), K (95.5 kg ha-1), Zn (262.4 g ha-1) and S (53.9 kg ha-1) over fertilizer control (75% RDF) and absolute control. The applications of KAB fortified with zinc sulphate assume great significance in improving rice productivity.

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Chromolaena odorata Compost Affected Soil Chemical and Rice Crop (Oryza sativa L.)

10.31227/osf.io/4sf5z ◽

2019 ◽

Author(s):

Jamilah Munir

Keyword(s):

Oryza Sativa ◽

Nutrient Uptake ◽

Oryza Sativa L ◽

Chemical Properties ◽

Forage Yield ◽

Rice Crop ◽

Soil Chemical Properties ◽

Chromolaena Odorata ◽

Significance Level ◽

Significant Difference

The study entitled "Chromolaena odorata Compost Affected Soil Chemical and Rice Crop (Oryza sativa L.) hadbeen conducted in Padang City, West Sumatra. It was started in February 2015 to May 2015. The study aimed wasto examine the mechanism of amendment soil chemical properties and nutrient uptake of rice crop was fertilized ByChromolaena odorata Compost. The experiment was conducted by using Randomized Complete Design (RCD) inSplit Plot Design with the main plots were three varieties of rice crops namely; Cisokan (V1); Pandan Wangi (V2)and Red Cempo (V3). The subplot consisted three types of fertilizer composition; 5 Mg ha-1 Compost C. odorata(CCP) +100% Artificial Fertilizer Recommendation (AFR) (F1); 7.5 Mg ha-1 CCP+75% AFR (F2); 10 Mg ha-1 CCP+50% AFR (F3), with three replications. Data was analysed by using the F test significance level of 5%, and anHonestly Significant Difference test (HSD) α 5%. Parameters include analysis of soil chemical properties, manure,analysis of nutrient uptake and the weight of dry crop biomass. The study indicated there was amendment in soilchemical properties after the application of C. odorata, compost achieving optimal fertility for rice crop. Nitrogen andother minerals uptake in rice crop increased due to the increased provision of artificial fertilizers escorted by loweringthe dose of C.odorata compost. The ability about the nutrient uptake of rice crop is higher in rice Pandan Wangi andcauses the higher forage yield than rice Cisokan or Red Cempo.

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