Abstract:

The paper aims to find out a scientific application model of livestock and poultry manure which is more suitable for growing over-wintering eggplant on lime concretion black soil in Tai’erzhuang District, and to realize the green, high-quality and efficient development of eggplant. The over-wintering eggplant planted on lime concretion black soil was taken as the experimental research object, the effects of pig manure and pure rice husk and chicken manure (0:2, 1:1, 2:0) on plant diameter, root system and yield of eggplant were compared. The results showed that the plant coarseness, root system and yield of eggplant treated with pure rice husk and chicken manure were the best, the diameter of main branch, fresh weight of root system, total number of root hairs and yield were 1.92 cm, 63.44 g, 130 bars and 392985 kg/hm², respectively; the application performance of pig manure, rice husk chicken manure and other proportions was moderate, the main branch diameter, root fresh weight, total root hair and yield were 1.90 cm, 61.56 g, 125 bars and 335670 kg/hm², respectively; the worst performing one was the application of pure pig manure, the main branch diameter, root fresh weight, total root hair and yield were 1.72 cm, 42.10 g, 86 bars and 331410 kg/hm², respectively. For the lime concretion black soil with heavy texture and bad structure, the application of rice shell and chicken manure could loosen the soil appropriately, improve the water, fertilizer, air and heat condition of eggplant root system, and provide a good environment for the growth of eggplant root system in overwintering stubble, thus make the eggplant plant become stout and the yield promotion.

Key words: lime concretion black soil, over-wintering eggplant, pig manure, rice husk and chicken manure, root system, yield, fertilization regime