海甘蓝生长过程中植株体内矿质营养元素动态的研究

我们在法国西部的昂热市（Ａｎｇｅｒｓ）试验研究了海甘蓝在不同生长时期内植株生长量、体内矿质营养元素含量、植株对不同营养元素的吸收量的动态变化。结果表明，海甘蓝在５个月生长期内的田间总生长量为１２．２２ｔ·ｈｍ－２（干物质），移栽后各月内海甘蓝的生长量大小顺序为第五个月＞第三个月＞第二个月＞第四个月＞第一个月。海甘蓝植株体内Ｂ、Ｓ、Ｃａ和Ｐ的含量以移栽后的第二个月最高，第五个月最低；Ｃｕ、Ｆｅ和Ｍｎ含量在第一个月最高，其它时期变化不大；Ｚｎ和Ｍｎ含量随移栽后的时间增加而降低；Ｎａ和Ｋ含量在整个生长季节内均无明显变化。在整个生长季节内，海甘蓝对各种矿质营养元素的总吸收量的大小顺序为Ｋ＞Ｃａ＞Ｓ＞Ｐ＞Ｎａ＞Ｆｅ＞Ｍｎ＞Ｚｎ＞Ｂ＞Ｃｕ。不同生长期，植株对多数营养元素的吸收量的大小顺序为第五个月＞第三个月＞第二个月＞第四个月＞第一个月

STUDY ON THE DYNAMICS OF NUTRITIONAL ELEMENTS IN THE PLANTS OF SEAKALE (Crambe maritima L.) DURING THE GROWING PROCESS

The dynamics of the plant growth, the content of various nutritional elements in the plants and the uptake of the elements by the plants during different growing periods of seakale (Crambe maritima L.) were studied in Angers, France. The results show that the total growth of seakale plants in the field within 5 months is 12.22 t. hm -2 (dry matter). The growing order of seakale during various periods is the 5th month after the transplantation > the 3rd month > the 2nd month > the 4th month > the lst month. The content of B、S、Ca and P in seakale plants is the highest in the 2nd month and the lowest in the 5th month; the content of Cu、Fe and Mn is the highest in the lst month and doesn't change too much in the other periods; the content of Zn and Mg decreases with the growth of seakale plants; and the content of K and Na is relatively stable in the various periods. The order of the total uptake of various nutritional elements during the whole growing season is K > Ca > S > P > Mg > Na > Fe > Mn > Zn > B >Cu and the order of the uptake of the elements except Mn in various growing periods is the 5th month > the 3rd month > the 2nd month >the 4th month > the 1st month.