The current study intended to understand the influence of Melia dubia based agroforestry system on soil properties. The research was carried out at Gillan Khera in district Fatehabad, situated in the semi-arid region of Haryana. Analysis of soil samples were done for pH, electrical conductivity (EC), organic carbon, soil moisture and available nitrogen, phosphorus and potassium. The soil pH and EC decreased more under trees than under control (sole wheat crop) i.e, 8.09 to 7.89 and 0.46 to 0.44 dSm-1 respectively. However, the amount of N, P, K, organic carbon (131.38, 16.00, 301.10 (kg/ha) and 0.46 % respectively) and soil moisture content was found higher in intercropped conditions at both soil depths.  Extra moisture in shaded conditions resulting in the breakdown of litter, mineralization and nitrogen gain at a faster rate compared to full sunlight conditions justifies the increased amount of nutrients, organic carbon and other favorable changes in the soil under trees. The current study recommends Melia dubia based agroforestry system as an excellent opportunity in order to enhance soil fertility and for environmental sustainability.

Climate change has impact on agricultural production, because it raises CO2 levels in the atmosphere, which leads to higher temperatures. Agroforestry systems aid in climate change adaptation and mitigation by providing relatively lower temperature beneath the tree canopy. Therefore, diversified agricultural systems are needed to be identified and studied throughout the world that can help annual crops in providing better survival conditions with least effects on yield. Although food crop output in agroforestry systems is lower than in open regions, agroforestry is seen to be capable of supporting food security, soil and water conservation, land use diversification, and micronutrient adequacy and most importantly climate change mitigation. The present study showed that all the tree parameters (i.e., tree DBH, tree height and canopy spread) recorded in the intercropped conditions (Melia dubia based agroforestry system) were found higher compared to the trees devoid of intercrops. Trees with intercrops showed more canopy spread, tree height and DBH (6.9 m, 16.3m, 56.6 m) as compared to pure stand (6.6 m, 16.2 m, 55.6 m) of Melia dubia trees. The canopy temperature depression (CTD) of wheat crop grown with Melia dubia trees was -5.58 0C whereas; -5.27 0C CTD was recorded in non-shaded conditions. Significantly higher biological yield was observed in wheat variety HD 3086 in open and intercropped conditions (134.9 q/ha and 100.5 q/ha respectively). Study revealed that M. dubia based agroforestry provides trees to perform better in intercropped conditions and provides favourable environment for the crop growing beneath in terms of lowering temperature and maintaining apt moisture to the crop raised beneath.

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The effectiveness of ten pre-emergent herbicides for the control of annual grass and broadleaved weeds in direct-sown ragi or finger millet (Eleusine coracana (L.) Gaertn.) was evaluated in field trials over two years in Orissa, India. Bifenox, chloramben, chloroxuron and metoxuron plus one light hand weeding were most promising. Butralin, thiobencarb, alachlor, monuron, fluchloralin and propyzamide did not perform well. Weed control achieved by one hoeing and three hand-weedings outyielded all herbicide treatments in both years.

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