Abstract:
Indonesia's population is increasing and conscious of the nutritional requirements lead to increase the demand for the vegetables including lettuce, it make lettuce decent to cultivate more in order to supply high consumer demand and larger market opportunity. Actions that need to be considered in the planting of lettuce is attention to the factors that affect the growth and production such as soil fertility and irrigation. In doing fertilization to note a few things that will be fertilized plants, the type of fertilizer used as organic fertilizer and inorganic fertilizer and provisions. In addition to nutrient availability factors affecting plant growth is unfulfilled needs water for crops. Water requirements can be met by the plant through the soil to the mechanism of water absorption by roots. From the results of this study concluded that the growth of lettuce plants affected by factors of chicken manure and water provision as well as variations in the interaction between the two factors, the growth of lettuce plants, the better to increase the use of fertilizers in the chicken coop but lettuce plants tend to decrease with soil moisture content 100 % field capacity and the interaction treatment of chicken manure 25 tonnes / ha with soil moisture content 75% field capacity seem to be more likely to affect this kind of plant growth on plant height and leaf area of lettuce plants, whereas combination treatment of chicken manure 25 tonnes / ha with a water content 50% soil field capacity showed a better effect on the parameters number of leaves and plant fresh weight
