Influence of phosphorus and sulphur levels on nodulation, growth parameters and yield of soybean (Glycine max L.) grown on Vertisol

Abstract

SummaryA field experiments were conducted for two consecutive years during 2009-10 and 2010-11to study the effect of phosphorus and sulphur levels on soybean (Glycine max L.) at Research Farm, Department of Soil Science and Agril. Chemistry, Vasantrao Naik Marathwada Krishi Vidyapeeth, Parbhani (M.S.) on Vertisol (Typic Hapluster) deficient in phosphorus and sulphur. The treatments consisted of four levels of sulphur (S 0 , S 20 , S 40 and S 60 kg ha -1 ) and four levels of phosphorus (P 0 , P 30 , P 60 and P 90 kg P 2 O 5 ha -1 ) applied through elemental sulphur and DAP, respectively. Results revealed that due to increase in the phosphorus and sulphur levels, there was effective improvement in nodulation, fresh weight of nodules plant -1 and growth parameters viz., plant height, leaf area, root length, root dry weight plant -1 and number of pods plant -1 at various growth stages of soybean. The yield i.e. grain, straw and total biological yield of soybean increased significantly with increasing levels of both phosphorus and sulphur. Further, synergistic effect of phosphorus and sulphur interactions on straw and total biological yield was highest at 90 kg P 2 O 5 + 60 kg S ha -1 followed by 90 kg P 2 O 5 + 40 kg S ha -1 , 90 kg P 2 O 5 + 20 kg S ha -1 and 60 kg P 2 O 5 + 60 kg S ha -1 in straw yield and 90 kg P 2 O 5 ha -1 with 60 or 40 kg S ha -1 produced significantly higher yield over S application with 30 and 0 kg P 2 O 5 ha -1 in total biological yield.Key words : Phosphorus, Sulphur, Soybean, Yield, NodulationHow to cite this article : Dhage, Shubhangi J., Patil, V.D. and Dhamak, A.L. (2014). Influence of phosphorus and sulphur levels on nodulation, growth parameters and yield of soybean (Glycine max L.) grown on Vertisol. Asian J. Soil Sci., 9(2): 244-249.

Effect of Phosphorus Fertilizer Levels on Growth and Root Character of Chickpea (Cicer Arietinum L.) Varieties in West Showa Zone, Ejersa Lafo, Ethiopia

“…Increasing in root length might be due to that phosphorus encourages the formation of new cells and thus promotes the root and shoot growth. This result was in line with the findings of Dhage et al (2014), who reported that application of phosphorus levels significantly increased the root length of soybean over control.…”

PEMANFAATAN ABU TERBANG BATUBARA UNTUK MENINGKATKAN KETERSEDIAAN P, SERTA PENGARUHNYA TERHADAP PERTUMBUHAN TANAMAN KANGKUNG DARAT (Ipomoea reptans Poir)

“…Ketersediaan P dalam tanah sangat dipengaruhi oleh pH tanah di mana ketersediaan P akan semakin tinggi pada pH tanah netral, yaitu berkisar pada pH 5,5-7 (Siswanto, 2018). Pada pH rendah atau masam, unsur P akan bereaksi dengan ion besi (Fe 2+ ) dan aluminium (Al 2+ ) membentuk besi fosfat dan aluminium fosfat, pada pH tinggi atau alkalis fosfor akan bereaksi dengan ion kalsium (Ca 2+ ) membentuk kalsium fosfat yang sukar larut dalam air (Dhage et al, 2014). Kandungan Ca dalam ATB yang tinggi (Bhatt, 2016) dapat menaikkan pH tanah.…”

Sebaran Unsur Hara N, P, K Dan Ph Dalam Tanah

“…Fosfor akan bereaksi dengan ion besi dan aluminium dan membentuk besi fosfat dan aluminium fosfat yang sukar larut dalam air sehingga tidak dapat digunakan oleh tanaman pada tanah yang memiliki pH rendah atau masam. Fosfor akan bereaksi dengan ion kalsium dan membentuk kalsium fosfat yang sukar larut sehingga tidak dapat digunakan oleh tanaman pada tanah yang memiliki pH tinggi atau alkalis (Dhage, et. al., 2014).…”