No abstract

The effect of lime and fertilizer application, as the management of soil acidity, on the growth and yield of rice cv. BRRI dhan50 was investigated during Aman rice season at the Agronomy Field Laboratory of Sylhet Agricultural University, Bangladesh. The experiment was consisted of two factors namely lime and fertilizer. There were four levels of lime (0, 0.50, 1.00, and 1.50 t ha–1 of CaCO3.MgCO3) and three levels of fertilizers (control, FYM @ 10 t ha–1, and chemical fertilizer @ 100-30-42-4-3-0.4 kg ha–1 of N-P-K-Ca-S-Zn). The experiment was laid out in a randomized complete block design with three replications where the unit plot size was 4.0 m x 2.5 m. Growth parameters, yield components and yield of BRRIdhan 50 rice increased with increasing lime rate in association of fertilizer in acidic soil. The highest grain yield (2.90 t ha–1) was recorded from the application of 1.50 t ha–1 lime and the lowest (2.06 t ha–1) was from control (0t ha–1), irrespective of fertilizer. On the other hand, the best effect of fertilizers on grain yield (3.08 t ha–1) was found with the application of FYM @ 10 t ha–1 and the lowest yield (1.59 t ha–1) was in control. The treatment combination of lime 1.50 t ha–1 and FYM (@ 10 t ha–1 produced the highest grain yield (3.60 t ha–1), which was followed by treatment combination of lime 1.50 t ha–1 and chemical fertilizer @ 100-30-42-4-3-0.4 kg ha–1 of N-P-K-Ca-S-Zn (3.28 t ha–1). Additionally, application of lime and FYM improved the soil fertility and properties of acidic soil for crop production by increasing the pH, organic matter and availability of some essential nutrients. From the study, it was indicated that both FYM and lime could affect to enhance the grain yield of rice in acidic soil. J. Bangladesh Agril. Univ. 16(3): 357–365, December 2018

(1997) Effect of nitrogen application during ripening period on photosynthesis and dry matter production and its impact on yield and yield components of semidwarf iniica rice varieties under water culture conditions, Soil Science and Plant Nutrition, 43:1, 205-217,

Boron (B) is an essential micronutrient of mustard and play a vital role on its normal growth, and development. A study was conducted at (AEZ-20) Shiberbazar, Sylhet during November 2016-February 2017 quantify the effect of boron on yield and yield attributes of mustard , and different doses and form of B application. Randomized Complete Block Design (RCBD) was followed with three replications to design the study. Five B (boric acid) levels viz. T1 = basal application of B @ 2kg ha -1 ; T2 = foliar spray (FS) of B @ 0.5% at vegetative stage (VS) ; T3 = FS of B @ 1% at VS; T4 = FS of B @ 0.5% at VS + pod formation stage (PFS) and T5 = FS of B @ 1% at VS + PFS and T6 = control (no boron) were used. Results indicated that yield and yield attributes of mustard were significantly influenced by boron application. The effects of boron were significant on number of siliquae plant -1 , number of seeds siliqua -1 , seed yield, stover yield, 1000-seed weight, biological yield and harvest index (%). The highest number of siliquae plant -1 (35.93), number of seeds siliqua -1 (30.03), stover yield (1946.0 kg ha -1 ) and 1000-seed weight (3.617 g) were obtained from the treatment T5. The seed yield (801.17 kg ha -1 ) was found also in the treatment T5 which was over double than control (T6). Therefore, two times foliar application of B @1% at VS and PFS is a good option to increase yield and yield contributing characters of BARI