天上明珠 发表于 2012-6-8 13:07 % M. U3 v: O$ z- l' F" c
当然！
5 C3 {3 }, A, W; h. O) P! M- G http://wiki.answers.com/Q/Is_spinach_a_perennial . x0 F2 x& g( r8 Y) U0 |+ C! @$ J% ?: ~4 ^$ W1 J
Spinach is an annual crop. To be more specific it is called a "winter annual" since it germintes in cool autum and grows vegetatively until grwoth is gradually slowed down as temperatures decrease through the winter. 3 I: r, _- P0 {; G , d4 [1 [; Z, h' Y# {3 x
Is Spinach Annual Or Perennial? 7 C% W/ F4 T, f# ^) ^* x" H) ]$ T7 C9 K6 X2 A, d; p
Spinach is considered to be an annual plant because of the fact that they flower and produce seeds then die. Annual plants do not return to the garden on their own. Perennial plants on the other hand bloom, die, and then go dormant until they return to the area where they are planting the next season.5 B6 A' t4 S$ t6 k- t6 l
1 }* `4 ?+ s9 d9 \: [0 X2 j# y http://www.foodanswers.org/2596/is-spinach-annual-or-perennial/
狗仔卡
鲜花(
鸡蛋(
发表于 2012-6-7 17:02
提升卡
置顶卡
沉默卡
喧嚣卡
变色卡
显身卡
发表于 2012-6-7 19:47
