Download A Farmer's Primer on Growing Soybean on Riceland by R. K. Pandey PDF

By R. K. Pandey

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Factors affecting seedling growth — weeds, insect pests, and diseases • Weeds rob seedlings of nutrients. • Insect pests eat young leaves and seedlings. stems and may kill • Soil-borne diseases stunt or kill young seedlings. 31 Growth stages Growth stages of soybean — vegetative phase 35 Growth stages of soybean — vegetative phase 36 Growth stages of soybean — late vegetative phase 37 Branching 38 Growth stages of soybean — vegetative phase • The first node has a pair of leaves, with only one leaflet each.

They must dry before harvest. 51 Full maturity • After 95 percent of the pods have turned yellow, 5 to 7 days of • 52 drying weather are needed. Rain at this time can spoil the seeds. Timely harvesting is necessary to prevent seed loss in the field. The roots Functions of the roots 55 Root development 56 Root distribution 57 Functions of the roots • • • The roots transport nutrients and water to the rest of the plant. They support the shoot and its parts. In soybean, the roots also fix nitrogen.

Stems and may kill • Soil-borne diseases stunt or kill young seedlings. 31 Growth stages Growth stages of soybean — vegetative phase 35 Growth stages of soybean — vegetative phase 36 Growth stages of soybean — late vegetative phase 37 Branching 38 Growth stages of soybean — vegetative phase • The first node has a pair of leaves, with only one leaflet each. • All nodes above the first have a single leaf with three leaflets. • Roots start forming nodules about one week after the seedling emerges above the soil.

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