论文部分内容阅读
在日光温室大棚蔬菜栽培中,茬口的选择是获得高产高效的基础。河西走廊一般在8月初定植西葫芦、黄瓜、番茄等蔬菜,以供应冬季市场,从而获得较高的经济效益,但在本茬蔬菜收获后,时值3月,为不影响下季蔬菜的定植,有些农户只好采用荒田或简单种点油白菜,其效益十分低下。笔者于2003年开始,在河西学院实验基地进行了塑料大棚春茬甜玉米套大白菜栽培试验,1月份育苗,6-7月份产品上市。经过2年的试验,每亩产鲜食玉米3500-4000穗,产值可达3000-3500元;每亩产春大白菜2500-3000千
In greenhouse cultivation of greenhouse vegetables, stubble selection is to obtain the basis of high yield and high efficiency. Hexi Corridor usually plant vegetables such as zucchini, cucumber and tomato in early August to supply the winter market and thus obtain higher economic benefits. However, after the harvest of this crop of vegetables, the value of March will not affect the planting of vegetables in the next season. Some farmers have to use barren fields or a simple point of oil cabbage, its benefits are very low. The author began in 2003, experimental base in Hexi University, a plastic shed spring corn Chinese cabbage cultivation test, January nursery, 6-July product listing. After 2 years of testing, per mu yield of fresh corn 3500-4000 spike, the output value of up to 3000-3500 yuan; per mu yield of spring cabbage 2500-3000