2014年农业气象条件对河套灌区向日葵生长的影响

摘要

分析2014年河套灌区向日葵生育期的农业气象条件可知，由于病害发生程度低，日照足、温差大、霜冻迟等有利因素共同作用，临河向日葵平均产量为3390 kg/hm2，比2013年增加150 kg/hm2。%By analyzing the agromete-orological conditions on the growth of sunflower in Hetao irrigation district in 2014,the results showed that because of many advantageous factors work togeth-er in combination,such as lower occur-rence degree of disease,relative enough sunshine,great temperature difference and the frost time was delayed,the aver-age yield of sunshine was 3 390 kg/hm2, which increased by 150 kg/hm2 over 2013.