Background: Pulses are having a number of constraints in their production as compared to their potential in India. Green gram is an important pulse crop of the country after chickpea and pigeonpea lacks optimum fertilizer management, which leads in reduced growth and yield. The current study aimed to study the effects of different levels of potassium and zinc application on growth, yield attributes, yield and quality of green gram. Methods: The field study was conducted during Kharif 2018 at Regional Research Station, CCS HAU, Bawal on green gram cultivar MH-421. The experiment was laid out in a split-plot design with three replications and treatments comprising four levels of potassium in main plots (0, 10, 20 and 30 kg K2O ha-1) and four levels of zinc in subplots (0, 12.5, 25 and 37.5 kg ZnSO4 ha-1). Result: The results indicated that growth parameters like plant height, number of branches, number of pods, number of seeds and dry matter production were released due to the application of potassium and zinc. The number of nodules, their fresh weight and quality parameters like protein content and seed index significantly increased with the application of potassium up to 20 kg K2O ha-1, but non-significant increment with zinc application. Seed and straw yield increased significantly with potassium and zinc application up to the levels of 20 kg K2O ha-1 and 25 kg ZnSO4 ha-1, respectively. Higher net monetary returns of Rs. 31528 ha-1 with B:C ratio (1.61) was recorded under the treatment combination K20Zn25 (20 kg K2O ha-1 along with 25 kg ZnSO4 ha-1). It was concluded that higher green gram yield with better quality and more net return was achieved when potassium and zinc were applied @ 20 kg K2O ha-1 and 25 kg ZnSO4 ha-1, respectively.
Eight representative pedons of sugarcane growing soil of Haryana viz., Damla, Yamunanagar (P1), Shahabaad, Kurukshetra (P2), RRS, Karnal (P3), Kaithal (P4), Mehlana, Sonipat (P5), Nidhani, Jind (P6), Mokhra, Rohtak (P7) and Meham, Rohtak (P8) were studied for morphological, physico-chemical characteristics and classified as per Soil Taxonomy. The colour of the studied pedons varied from yellowish brown (10YR 3/2) to dark brown (10YR 5/5) in colour, with dominant hue of 10YR. The range of bulk density of different horizons was 1.05 to 1.33 Mg m-3. These soils were slightly alkaline to moderately alkaline in reaction. The soils of all the pedons of studied area were non saline in nature having EC < 1.36 dSm-1. Exchangeable Sodium percentage (ESP) and Base Saturation Percentage (BSP) ranged from 1.65 to 47.55 % and 23.18 to 99.60 % respectively. The CEC of the soils ranged from 1.98 to 13.82 cmol (p+) kg-1. The soils of the area were classified according to Soil Taxonomy as Fine loamy, Mixed, Hyperthermic, Typic Ustocrepts (Pedon 3,6 and 7), Fine loamy, Calcareous, Mixed, Hyperthermic, Typic Haplustepts (pedon-4), Fine loamy, Mixed, Hyperthermic, Typic Haplustepts (pedon-2), Coarse loamy, Mixed, Hyperthermic, Aquic Ustochrepts (pedon-5) and Coarse loamy, Mixed, Hyperthermic, Typic Haplustepts (1 and 8).
Present investigation was carried out at Regional Research Station, Uchani (Karnal) of CCS Haryana Agricultural University, Hisar, India during 2020-21 to assess the effect of method and schedule of fertilizer application on growth, yield attributes and cane yield of summer planted sugarcane (Saccharum officinarum L.) crop under wide spacing (120 cm). The experiment was arranged in split plot design with two methods of fertilizer application (B1-broadcasting and B2- band placement) as main plot treatments and four sub plot treatments which include application of recommended dose of N and K fertilizer (RDF) in different number of splits at different no. of days after planting (DAP) i.e. T1 (five splits), T2 (six splits), T3 (seven splits) and T4 (three splits). Results concluded that majority of growth parameters, yield attributes and cane yield were significantly affected by both main and sub plot treatments at different stages of crop growth period. Treatment B2 registered significantly higher tiller population (110.59 and102.68 000 ha-1 at 60 and 120 DAP respectively), plant height (91.16, 141.18, 400.12 and 412.13 cm at 60, 120, 180 and 240 DAP respectively), no. of millable canes (NMC) (100.79 and 96.58 000 ha-1 in mid-September and at harvesting respectively) cane length (234.64 cm at harvesting) and cane yield (93.16 t ha-1)compared to B1. Among sub plot treatments, T1 outperformed all the other treatments in terms of growth, yield attributes and cane yield. Treatment T1 registered maximum plant height (150.43, 411.0 and 427.45 cm at 120, 180 and 240 DAP respectively), tiller population (104.72 000 ha-1 at 120 DAP), NMC (102.06 and 95.20 000 ha-1 in mid-September and at harvesting respectively) and cane yield (94.83 t ha-1). Germination percentage, cane girth, no. of internodes per cane and length of internodes was not significantly affected either by main or sub plot treatments.
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