Effect of Added Urea Foliar Spray and Leaf Clipping on Growth and Yield Response of Mungbean

Abstract

An experiment was conducted at Sher-e-Bangla Agricultural University, Dhaka, during March to May 2018 to study the impact of added urea foliar spray and leaf clipping on growth and yield of mungbean. The experiment was laid out in Split-plot Design with three replications and composed of four levels of urea foliar spray viz. F0 = Recommended Fertilizer (RF) + No Foliar Spray (FS), F1 = RF + 1% Urea FS at Flower Initiation (FI), F2 = RF + 2% Urea FS at FI, F3 = RF + 3% Urea FS at FI and four levels of Leaf clipping viz. C0 = No leaf clipping, C1 = Clipping 1 basal leaf, C 2 = Clipping 2 basal leaves, C3= Clipping total apical leaves having no inflorescence. Results indicated that foliar spray and leaf clipping had significant effect on most of the growth and yield contributing parameters. In case of foliar spray of urea, the maximum plant height, nodules plant-1, highest above ground dry matter plant-1, pods plant-1, pod length, seeds pod-1, 1000 seed weight, seed yield, stover yield and biological yield were recorded from F0. In case of leaf clipping, all growth and yield attributes were recorded highest from C1. Regarding combined effect, the highest growth and yield parameters were recorded from the treatment combination of F0C1. So, F0 along with C1 is suggested for yield improvement in mungbean cultivation.
 Bangladesh Agron. J. 2022, 25(2): 57-65

Comparative Efficacy of Foliar Plus Soil Application of Urea versus Conventional Application Methods for Enhanced Growth, Yield, Agronomic Efficiency, and Economic Benefits in Rice

“…The findings are in agreement with those of other researchers who reported that the foliar application of N increased the grain yield over sole soil application. ,,,,, The application of N in the soil, as well as foliage, significantly increased the grain yield as compared to the traditional method of application (100% in soil) . It has also been reported that foliar spraying of urea solution significantly increased the grain yield of rice . Foliar feeding of urea in combination with soil application significantly increased the grain yield of other crops. ,,, Nitrogen can increase the grain yield of rice by increasing the vegetative growth (Table ) and plant characteristics such as the number of effective tillers, panicle length, and filled grains panicle –1 (Table ) in this observation.…”

“…N is the key element for rice growth, but the soil was deficient to N (Table ), and the growth as well as all plant characters showed the lowest values, consequently showing the lowest HI. The result is parallel to that of Hossain . It has been reported that the foliar application of urea solution at different concentrations increased the HI .…”

“…These data are in agreement with another study depicting the increased grain and straw yields (biological yield) of wheat radically with the soil and foliar application of urea as compared to the soil-applied urea . The biological yield of rice was positively correlated with the grain yield . The finding contrasts with the finding of Al-Amin who obtained the highest biological yield (11.62 t ha –1 ) in BRRI dhan29 from five times foliar application of 2% urea solution.…”

“…It has also been reported that foliar spraying of urea solution significantly increased the grain yield of rice . Foliar feeding of urea in combination with soil application significantly increased the grain yield of other crops. ,,, Nitrogen can increase the grain yield of rice by increasing the vegetative growth (Table ) and plant characteristics such as the number of effective tillers, panicle length, and filled grains panicle –1 (Table ) in this observation. This result is consistent with the findings of de Datta and Buresh on lowland rice.…”

“…In another study, it was reported earlier that soil and foliar application of 75% urea of recommended dose (RD) significantly increased the straw yield (15.67%) as compared to 100% RD of soil-applied urea . The highest grain and straw yield was obtained by Hossain with increasing the frequency of foliar application of urea (6 times). The foliar application of urea solution @ 2% with soil application significantly increased the straw yield. , A similar conclusion was suggested by Jamal et al, where the foliar and soil application of urea significantly increased the grain and straw yield of wheat.…”