Effect of Nutrient Management Levels on Soybean Grain Equivalent Yield (SGEY) and Total System Productivity (TSP) of Soybean based Cropping Sequence

Nutrient management and cropping sequence are two important factors which affect soybean grain equivalent yield and system productivity of soybean based crop sequence. System productivity is one the important part of the successful crop production. A field experiment was conducted at Akola to check effect of levels of nutrient management on soybean grain equivalent yield and system productivity of soybean-onion and soybean-potato cropping system. Agronomic crop is combined with the high daily used vegetable crop to check feasibility of combination to increase the system productivity of crop sequence.

At the research farm of the Department of Agronomy, Dr. PDKV, Akola (MS), the current experiment, titled “effect of nutrient management levels on growth, yield attributes, soybean grain equivalent yield and system productivity of soybean based cropping sequence,” was carried out in 2017-18, 2018-19 and 2019-20. Three replications and a split plot design were used to set up the experiment. The data pertaining to growth characteristics, yield characteristics of Soybean in (kharif) and onion or potato crops (rabi) was collected at regular intervals which was analyzed statistically in RBD (randomized block design) and SPD (split plot design).

Among the cropping sequences soybean-onion cropping sequence recorded significantly higher soybean grain equivalent yield, system productivity as compared to soybean-potato crop sequence. Application of 100% RDF + FYM 5 t ha^-1 + Biofertilizer applied to kharif soybean and 125% RDF to rabi sequence crops (onion and potato) recorded significantly higher soybean grain equivalent yield, system productivity than rest of the combinations and found statistically similar with treatment combination of 75% RDF + FYM 5 t ha^-1 + Biofertilizer applied to kharif soybean and 100% RDF to rabi sequence crops (onion and potato).