Effect of Different Spacing of Eucalypts (Eucalyptus tereticornis) based Agroforestry System on Performance of Rabi Field Crops

The shrinkage of land is a big problem in the present time and to harvest the full opportunity of the land under different agroforestry system seems to be one the solution to the spatial and temporal arrangement of the different crops. The field experiment based on agroforestry system was conducted to find out the suitable crop combinations for rabi season and its economics at Farm Forestry, CCSHAU, Hisar, in which, eucalypts (P-23) planted in October 2018 was taken as forest tree with spacing: 6×3, 7×3, 8×3, 9×3m and Rabi crops viz., wheat (HD 2967), barley (BH -393), raya (RH-30) as agricultural crops. The results revealed that three year old eucalypts planted at a spacing of 9×3 m exhibited significantly higher plant height (9.13 m) as compared to 8×3, 7×3 and 6×3 m spacing. The edaphic factors like pH (7.92-8.02), EC_1:2 (1.7-2.1dS/m), organic carbon (OC) ranged from 0.30-0.39 per cent of the field with different spacing were inclined to salinity, However, minimum grain yield reduction (11.34%) was observed in barley at eucalypts spacing 9×3m followed by 8×3m as compared to sole crop. In addition to this raya crop was found suitable under eucalypts based agroforestry system in 9×3m spacing. Maximum B: C ratio was obtained with eucalypts + mustard agroforestry system under two spacing 8×3m and 9×3 m i.e., 1.66 and 1.67, respectively.