Enhancing Lentil Productivity through Sustainable Nutrient Management Practices in Rice Fallow
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Keywords:
Foliar spray, Lentil, Lime, Nutrient management, Rice fallow landsAbstract
India has to lift up pulse productivity with its limited and decreasing land holding, to assure food and nutritional security. Sustainable soil nutrient management is one of the ways to increase the pulse production and productivity. Therefore, a field experiment conducted at Indian Council of Agricultural Research (ICAR) for NEH Region, Tripura Centre,
Lembucherra, Tripura, to enhanced lentil productivity through sustainable nutrient management practices in rice fallow lands of Tripura. The experiment was laid out in a randomized block design with three replications and 6 treatments. The details of the nutrient managements are T1- 20 + 18 + 33 kg nitrogen (N), phosphorus (P) and potassium (K)/ha, T2- 20 + 18 + 33 kg NPK + 200 kg Lime/ha, T3- 10 kg N as basal and rest 10 kg as top
dressing (at flowering) + 18 + 33 kg PK+ 200 kg Lime/ha, T4- 10 + 18 + 33 kg NPK + 200 kg Lime/ha + 3 times foliar spray of Urea + ZnSO4 + Boron, T5- 20 + 9 + 33 kg NPK/ ha + PSB + 2 boron and T6- Control (no fertilizer). T4 produced significantly higher number of branches/plant (9 branches/plant), number of pods/plant (58 pods/plant), number of seeds/pod (1.9), 1,000 seed weight (18.5 g), seed yield (952 kg/ha), NPK uptake (95.7, 5.1 and 27.3 kg/ha, respectively), maximum net return and B: C ratio (Rs. 41,526/Ha and 2.37, respectively), soil organic carbon concentration (0.72%) and soil pH (5.2) as compared to the other treatment combinations. While, the higher available NPK concentrations occurred in T3. Therefore, study recommended the soil application of 10 + 18 + 33 kg NPK + 200 kg lime/ha in furrow at the time of sowing and supplementation of N, zinc (Zn) and boron through foliar application of 2% urea, 0.5% ZnSO4 and 0.2% borax for sustainable lentil cultivation in rice fallow acid soils of Tripura.