Response of integrated nutrient management on flowering, fruit setting, yield and fruit quality in mango (Mansifera indica L.) cv. HIMSAGAR.
Singh S. R., Banik B. C.
Author Affiliation: Department of Fruits and Orchard Management, Faculty of Horticulture, Bidhan Chandra Krishi Vishwavidyalaya, Mohanpur, Nadia (W.B.), India.
Asian Journal of Horticulture 6 : 151-154
Abstract : To observe the response of integrated nutrient management on the flowering, fruit setting, yield and fruit quality parameters were subjected to 1000:500:500 g NPK/tree (control) (T1), T1+Zn (0.5%)+B (0.2%)+Mn (1%)+Ca (0.6%) as foliar application twice (Aug. and Oct.) (T2), T1+organic mulching (10 cm thick of dry leaves) (T3), T2+organic mulching (10 cm thick of dry leaves) (T4), 1/2 T1+50 kg FYM+250 g Trichoderma (T5), 1/2 T1+50 kg FYM+250 g Azospirillium (T6), 1/2 T1+Azotobacter (250 g)+50 kg FYM (T7) and 1/2 T1+Azotobacter (250 g)+250 g Azospirillium (T8). The observation revealed that the date of first and last flowering initiation was first recorded in T4 on 12th February and T7 on 22nd February. Highest ratio of hermaphrodite flower/panicle was observed in T4 (28.06%) and minimum in T1 (21.40%). Fruits/panicle in pea stage and marble stage was highest in T5 (13.24) and T6 (8.53) and lowest in T7 (10.80) and T1 (5.16), respectively but the total number of fruits/tree in harvest stage was recorded highest in T6(333.70) and lowest in control (176.00). Average fruit weight was also recorded highest in T6 (244.22 g) and lowest in T8 (216.28 g). Fruit length and breadth was recorded maximum in T4 (6.88 cm) and T2 (5.80 cm) and minimum in control (6.22 cm) and (5.04 cm), respectively. Seed weight and peel weight was observed highest in T8(38.30 g) and T5 (33.10 g) but lowest in T6 (26.18 g) and T4 (24.50 g), respectively but pulp weight was noted maximum in T6 (189.86 g) and minimum in T1 and T8 (151.48 g). The quality parameters viz., total soluble solid, reducing sugar and total sugar were observed maximum in T6 (19.24°Brix), (4.44%) and (15.48%), respectively but minimum in T2(17.50°Brix), T2 and T5 (3.66%) and T7(14.04%), respectively. Acidity was found highest in T5 (0.21%) and lowest in T6 (0.14%). The overall performance of T6 treatment was better both in yield and quality parameters which can be recommended for mango plantation in new-alluvial zone of West Bengal in future.