1, Crotalaria: half shrubby legume herb, stems erect. Many branches. Ye are many and large, three compound leaves, pour oval or inverted oval-shaped oblong. 1 to 2 meters tall, yellow flowers, butterfly corolla; corolla yellow, with purple stripes on the flag flap. Flowering from May to July, the fruit of October. Hi warm, damp, cold. Toughness is a strong plant in the riverbed, the bank side, the sun in the sky, sandy gravel environment more growth. Because long flowering period, and drought-resistant barren habits, ideal for roads, slope, wasteland cultivation. Leaf lush prevent water and soil erosion effect. Seeding rate of 5g / m2. 2, pigeonpea: legumes. Pigeonpea belong upright small shrub height of 1 to 3 meters, usually annual, in Guangdong, Guangxi, Fujian, Hainan and other provinces for more annual or perennial. Strong root system, the main Deep, a large number of nodules on the roots, strong nitrogen-fixing ability. Drought, no water logging, soil strict, poor resistance, salinity, requires a strong light. Seed propagation, seeding rate 6 grams / square meter. Pigeonpea is a fast-growing shrubs, root, both fixed reduce soil erosion, pigeon pea is a way to keep and improve the ecological balance, the best crop management barren desert Uplands.