How to do stcr approach for precision agriculture?
Answers
Answer:
Explanation:
The shortage and high cost of fertilizers necessitate that every unit of fertilizer be used judiciously. In view of high location-specific nutrient needs and soil-test based fertilizer recommendation for specific crop and crop sequences, soil testing has updated its methods and techniques to remove soil fertility constraints. A field experiment was conducted during kharif seasons of 2012-13 and 2013-14 at the Main Agricultural Research Station, UAS, Raichur, India to study the response of soil test crop response (STCR) approach on the yield and quality of Sunflower (Helianthus annuus L.). The experiment was laid out by RCBD design with three replications. The analysis of variance revealed that the application of fertilizers based on STCR (Soil Test Crop Response) along with foliar application of micro-nutrients significantly recorded higher head diameter, 100 seed weight, number of filled seed head-1,seed filling per cent, seed yield ha-1, stover yield ha-1, oil content and oil yield ha-1. Further a higher gross return, net returns and benefit-cost ratio (BCR) were observed when compared to the other treatment combinations carried out during the experiment viz., recommended dose fertilizer (RDF) of NPK (Control). Hence, it can be concluded that the input of STCR approach leads to precise use of fertilizer dose as compared to RDF method; ultimately it can serve as to improve farming community by reducing the cost of cultivation, increasing yield and a basic tool for sustainable agriculture production.