GROWTH AND YIELD OF LENTIL AS INFLUENCED BY ZINC AND BORON MANAGEMENT

Abstract

A field experiment was conducted at Sher-e-Bangla Agricultural University during the period from November 2021 to March 2022 to evaluate the influence of micronutrient management on growth and yield of two lentil varieties viz. BARI Masur-8 (V 1 ) and Binamasur-8 (V 2 ) and 6 micronutrient management (No fertilizer - F 1 , Recommended fertilizer dose (40-90-40-55 kg ha -1 of urea-TSP-MoP-Gypsum) with Zn 10 kg ZnSO 4

as basal - F 2 , RFD with Zn as foliar spray - F 3 , RFD with Zn & B as foliar spray - F 4 , 50 % RFD + 50 % cowdung (5 t ha -1 ) - F 5 and 50 % RFD + 50 % cowdung + Zn & B as foliar spray - F 6 ). No significant effect had found for variety except 1000-seed weight but micronutrient management along with interactions significantly effects on all studied parameters of lentil. The higher 1000-seed weight (34.16 g) was recorded in BARI Masur8. The highest plant height (37.09 cm), number of branches plant -1 (7.03), dry weight of root plant -1 (159.17 mg), dry weight of shoot plant -1 (3319.33 mg) and number of pods plant -1 (62.37) was observed at F 6 treatment.

The highest number of nodules plant (2.83 at 60 DAS) and 1000-seed weight (31.68 g) were recorded at F

treatment . The highest weight of nodules plant -1 (10.33 mg at 60 DAS), seed yield (2.62 t ha 2 -1 ), straw yield (2.12 t ha -1 ) and biological yield (4.74 t ha -1 ) were found at F treatment . The highest plant height (38.45 cm), number of branches plant (2.91 t ha -1 -1 3 (7.40), number of pods plant ) and harvest index (58.65 %) were recorded at V of nodules plant -1 (26 mg), straw yield (2.22 t ha -1 2 F 6 -1 -1 ha (63.20), seed yield

whereas the highest weight ) and biological yield (5.02 t ha ) were found at V 1 F 3

but the highest 1000-seed weight (34.87 g) at V 1 F . The highest number of seeds pod -1 (1.83) was found at V 2 F 1 1 . So, the two studied varieties showed similar performance on yield. Foliar application of Zn has the potentiality to increase seed yield. Application of Zn is important for lentil cultivation. The variety Binamasur-8 with 50 % RFD + 50 % cowdung + Zn & B (F 6 1 ) of lentil that also similar with F 2 ) as foliar spray could bring maximum yield (2.91 t ha , F 3 and F 4 . Variety BARI Masur-8 gave the highest seed yield (2.79 t ha -1 ) with F 3 that similar with F 2 and F 5 .