Effect of organic manures, inorganic manures and Biofertilizers on growth and yield of cashew cv. Balbhadra at Jharkhand region

Abstract

An experiment was conducted to observe the effect of biofertilizer as well as of organic manure on growth and yield of cashew cv. BALBHADRA at ZRS, Darisai, E. Singhbhum, BAU, Ranchi centre during the year 2017-18 under AICRP-Cashew programme. The experiment was laid out in Randomized Block Design with three replications and eight treatments (T1-100% N as FYM, T2 - 100% N as FYM + Bio-fertilizers (Azatobacter + Azospirillum + PSB) 200 g, T3 - 50% N as FYM + Bio-fertilizers (200g), T4 - 100% N as Vermicompost + Bio-fertilizers (200g), T5 - Recycling of organic residue with the addition of 20% cow dung slurry (20% weight of organic residue as cow dung), T6 – In situ green manuring /green leaf manuring to meet 100% N, T7 - 25% N as FYM + Recycling of organic residue + In situ green manuring / green leaf manuring + Bio-fertilizers (200g), T8 - Recommended doses of fertilizer + 10 kg FYM (Control).Observations were recorded at particular stages of plant growth. Similar uniform cultivation practices were followed in all the treatments with three replication. The data were statically analyzed as per procedure and the result was found that maximum tree height (4.2m) was obtained in T6 followed by T1. On the other hand considering the ground cover maximum value was obtained by T7 followed by T8. And for all other characteristics like Mean flowering lateral/m2, Mean nut weight, Mean apple weight, Mean annual nut yield, Cumulative nut yield T8 ranks first, whereas T7 ranks second for Mean flowering laterals/m2 and Mean annual nut yield and cumulative nut yield., T5 ranks second for mean nut weight and mean apple weight.