Growth, yield and movement of phosphate nutrients in soybean on P fertilizer, straw mulch and difference of plant spacing

International Conference on Agriculture, Environment, and Food Security

农业科学;生态环境科学

Hanum, C.^1

Faculty of Agriculture, Universitas Sumatera Utara, Kampus USU, Jalan Prof A Sofyan No. 3, Padang Bulan Medan, Indonesia^1

关键词: Block designs;    Grain yield;    P fertilizers;    Phosphate levels;    Plant spacing;    Rice straws;    Root volume;    Straw mulch;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/122/1/012051/pdf
DOI  :  10.1088/1755-1315/122/1/012051

来源: IOP

【 摘 要 】

Soybean is one of the plants that require much amounts of phosphate. P nutrient, microclimate modification and plant spacing arrangement is the efforts to improve grain yield. The objective of the research was to study the effect of P fertilization, mulching straw and plant spacing on growth, yield and movement of P nutrient on soybean. The study was conducted at Cengkeh Turi Binjai using factorial randomized block design with 3 factors. The first factors was P fertilizer 0, 100, and 200 kg/ha, the second factor was thickness of rice straw mulch 0 and 5 cm, and third factors was plant spacing 30 cm x 15 cm, 40 cm x 20 cm, and 50 cm x 25 cm. The results of the research showed that phosphate fertilizer (200 kg/ha) significantly increased levels of phosphate in the shoot. Plant spacing (50 cm x 25 cm) increased root volume. The interaction of phosphate fertilizer (200 kg/ha) and spacing (50 cm x 25 cm) increased the phosphate level by 93.33% in shoot. Plant spacing (50 cm x 25 cm) produced the largest of 100 grains weight as compared to other plant spacing.