Effects of Organic Amendments on Yield Performance of Winter and Summer Seasons Vegetables at Charlands in Bangladesh

Abstract

The experiment was conducted at the farmer‟s fields of Charlands in Bangladesh during November 2020 to July 2021 to investigate the effects of different organic fertilizers along with inorganic fertilizers on growth and yield of different crops. The experiments were established in a randomized complete block design using six treatments and three replications. Treatments of the experiments were T1 = FP (Farmers‟ Practice) (Control), T2 = RF (Recommended Fertilizer) + Vermicompost (3t/ha), T3 = RF (Recommended Fertilizer) + Quick Compost (3t/ha), T4 = RF (Recommended Fertilizer) + Standard Organic Fertilizers (3t/ha), T5 = RF (Recommended Fertilizer) + Poultry Manure (3t/ha) and T6 = RF (Recommended Fertilizer) + Biochar (3t/ha). Results of the experiment showed that application of organic manures along with inorganic fertilizers produced significant (p<0.05) variation in yield and production contributing characters of pumpkin, sweet potato and indian spinach compared to Farmer‟s practice. During winter trial for pumpkin experiments, among the Charlands, the maximum yield per plant 84.86kg was recorded in T6 treatment and the minimum yield per plant 23.29kg was obtained from T1 treatment from Naobhangar Char. Among the Charlands, the highest total income 1270000.00 tk/ha was recorded in T6 treatment and the lowest total income 349400.00 tk/ha was obtained from T1 treatment from Naobhangar Char. Among the Charlands, the highest BCR 3.37 was recorded in T6 treatment and the lowest BCR 0.90 was obtained from T1 treatment from Naobhangar Char. During winter trial for sweet potato experiments among the Charlands, the maximum fresh yield of tuber 95.23t/ha was recorded in T5 treatment and the minimum fresh yield of tuber 35.49t/ha was obtained from T1 treatment from Char Shaluka. Among the Charlands, the maximum total income 1430000.00 tk/ha was recorded in T5 treatment and the minimum total income 532400.00 tk/ha was obtained from T1 treatment from Char Shaluka. Among the Charlands, the maximum BCR 3.65 was recorded in T5 treatment but the minimum BCR 1.08 was obtained from T1 treatment from Char Shaluka. During summer trial, for pumpkin experiments among the Charlands, the highest total yield per plant 86.08kg was recorded in T6 treatment while the lowest total yield per plant 28.72kg was obtained from T1 treatment from Naobhangar Char. Among the Charlands, the highest total income 1290000.00 tk/ha was recorded in T6 treatment while the lowest 430794.00 tk/ha was obtained from T1 treatment from Naobhangar Char. Among the Charlands, the highest BCR 3.41 was recorded in T6 treatment while the lowest BCR 1.12 was obtained from T1 treatment from Naobhangar Char. During summer trial, for indian spinach experiments among the Charlands, the highest total fresh yield 61.30 t/ha was recorded in T6 treatment from Maijbari Char but the minimum total fresh yield 45.18 t/ha was obtained from T1 treatment from Naobhangar Char. Among the Charlands, the highest total income 919450.00 tk/ha was recorded in T6 treatment from Maijbari Char but the lowest total income 677700.00 tk/ha was obtained from T1 treatment from Naobhangar Char. Among the Charlands, the highest BCR 2.45 was recorded in T6 treatment from Maijbari Char but the lowest BCR 1.78 was obtained from T1 treatment from Naobhangar Char. Comparatively higher yield and production of different crops were obtained from biochar and poultry manure treated fields