【正文】
spring shoot 前一年的修剪力度很大使得其第三第四側(cè)枝基本全部去除,次年的春梢基本發(fā)于第一,第二側(cè)枝上,筆者通過(guò)對(duì)樟樹基地中三個(gè)重復(fù)內(nèi)不同處理下的吳茱萸春梢情況來(lái)作為這一年當(dāng)中吳茱萸的一個(gè)生長(zhǎng)指標(biāo),也輻射出其開花及結(jié)果的數(shù)量。三個(gè)重復(fù)內(nèi)兩年中平均地徑增幅最大的達(dá)到 ,為 N1P2K1 處理,其次是N1P1K1處理,地徑增幅為 。 Be seen from Table 1, camphor forest soil porosity Evodia a maximum of 58%, performance in the soil 0 ~ 20cm of N1P1K1 treatment, the overall average of %, the upper soil porosity is generally higher than the lower soil porosity, various fertilizer treated soil porosity CK were higher than the control treatment. It can be derived camphor Evodia soil sample in line with normal range of soil porosity, paction phenomenon does not exist, and reasonable regulation of fertilization on soil porosity plays a significant role, and since Evodia root mainly in the upper soil and rhizosphere microbial activity vigorous, resulted in relatively loose upper soil, good aeration, porosity and relatively large, which will help Evodia the growth and development, the lower the porosity is relatively small benefit Evodia forest water storage and water retention. This shows that Evodia Root concentrated ventilation in the soil water retention capacity of the upper root distribution was significantly higher than the lower soil less, while under conditions of balanced fertilization, forest soil porosity Evodia larger, more porous soil. ( 3)土壤容重 土壤容重是衡量土壤供肥、保肥能力的重要物理指標(biāo)。這是由于地表水分蒸發(fā),加上吳茱萸根系在上層分布比較多,土質(zhì) 比較疏松,以及水分通過(guò)土壤空隙滲透作用而造成。隨著我國(guó)加入世界貿(mào)易組織 后,政府采取了積極的財(cái)政政策,擴(kuò)大內(nèi)需,促進(jìn)出口,加大了對(duì)吳茱萸 的需求量,但野生吳茱萸資源較少,人工種植吳茱萸產(chǎn)量也較低(初果期鮮果 ,盛果期 150kg/畝),發(fā)展高產(chǎn)吳 茱萸技術(shù)將會(huì)帶來(lái) 十分可觀 的經(jīng)濟(jì)效益和社會(huì)效益。 C 明確江西省吳茱萸栽培中土壤肥力狀況和養(yǎng)分限制因子。 喜光、喜溫暖潮濕環(huán)境, 定植 23 年結(jié)果,每株可產(chǎn) 1~ 3kg, 4~ 5 年進(jìn)入盛果期,每株可產(chǎn) 5kg。s traditional Chinese medicine. Yoshimitsu, joy warm and humid environment, planting 23 year result, per plant can produce 1 ~ 3kg, 4 ~ 5 years into the Sheng Guoqi, per plant can produce 5kg. Plant life of 10 to 20 years, is a good ecological and economic use either of the Chinese herbal medicine species. Evodia is rich in alkaloids, limonoids, volatile oils, fatty acids, substances with high medicinal value in the treatment of cardiovascular diseases, antitumor, antiinflammatory has a very significant effect. Evodia39。土壤孔隙狀況直接影響土壤的通氣透水及根系穿插,是土壤肥力的重要指標(biāo)之一。 樟樹吳茱萸林地各處理 土壤容重 測(cè)定結(jié)果 如 表 2。 且兩地均以 N1P2K1 處理 的地徑增幅最大。s spring shoot basic hair in the first, second lateral branch, the author bases by camphor repeated in three different treatment under the Evodia this spring shoot of the year Evodia as a growth index, but also radiate its flowering and the number of results. Camphor base in three repeat Evodia The average plant spring shoot the situation shown in Figure 3. 圖 3 : 不同配方施肥吳茱萸春梢調(diào)查020406080100120140N1P1K0 N1P1K1 N1P1K2 N1P2K1 N1P2K2 N1P0K1 CK春梢數(shù)量(個(gè))樟樹瑞昌 由圖 3 得知, 各施肥處理的春梢數(shù)量均不同程度 的高于 CK 處理??梢缘贸霾煌浞绞┓试谌齻€(gè)生長(zhǎng)情況不相同的吳茱萸樣地,春梢萌發(fā)數(shù)量無(wú)明顯差異,但同一樣地不同配方施肥對(duì)吳茱萸的春梢萌發(fā)數(shù)有著顯著的差異,肥料對(duì) 吳茱萸次年 春梢萌發(fā)有明顯的促進(jìn)作用 。 這說(shuō)明不同肥料配方對(duì)吳茱萸葉片 葉綠素含量有顯著 影響,葉綠素含量的高低直接決定了葉片光合作用的強(qiáng)弱,這 進(jìn)一步說(shuō)明吳茱萸在平衡施肥條件下,將大大改善植株生長(zhǎng)所需的 養(yǎng)分 和生理指標(biāo),同時(shí) SPAD 葉綠素儀可 為 生產(chǎn) 中指導(dǎo)合理的施肥 提供 簡(jiǎn)單快速的 氮素 營(yíng)養(yǎng)診斷方法。吳茱萸在 5月份基本全部萌發(fā)此時(shí)對(duì)其做春梢數(shù)量的調(diào)查可以作為今年預(yù)期產(chǎn)量評(píng)估的一個(gè)重要手段。 而 由此不難看出,每個(gè)施肥處理春梢數(shù)量都大于 CK 對(duì)照處理,單施鉀肥、磷肥的處理春梢萌發(fā)數(shù)量均低于其它處理 。 可以得出不同配方 施肥在三個(gè)生長(zhǎng)情況不相同的吳茱萸樣地, 地徑的增長(zhǎng)幅度無(wú)明顯差異,但 同一樣地 不同配方 施肥對(duì)吳茱萸地徑的 生長(zhǎng)有著顯著的差異 ,肥料對(duì)地徑的生長(zhǎng)有明顯的促進(jìn)作用,這為研究增強(qiáng)吳茱萸樹勢(shì)、疏花疏果、間伐修剪提供了參考依據(jù),同時(shí)為進(jìn)一步定位吳茱萸最佳配方施肥也提供了必要的參考。 From Table 3:In all fertilization treatments, the soil samples Evodia ammonium nitrogen and available phosphorus content of changes are higher than CK. processing. From the various processing soil fertilizer increased situation, the largest increase in focus on N1P1K1 processing, the value of mg / L. N1P1K0 and N1P0K1 of fertilizer increased values are mg / L and mg / L. The use of soil ammonium nitrogen is not very high. Therefore, the bined application of NPK fertilizer on soil ammonium content increased effect of the best, singletreatment of P fertilizer or potash fertilizer improve soil ammonium concent effect is not obvious . From the various processing the use of Available phosphorus, N1P2K1, and N1P2K2 deal with changes of soil available phosphorus content are higher than other treatments, CK processing is negative, the relative decrease mg / L before fertilization, To illustrate that the reasonable application can improve pertinence of anic p utilization. From the various processing rapidlyavailable potassium using, N1P1K0 processing in the content of soil rapidlyavailable potassium to reduce performance in change, for / L, Among the N1P2K1, N1P1K2 and N1P2K2 processing changes, soil available K content is higher, and N1P2K1 is the highest to / L,. It showed a reasonable application of NPK which is conducive to the accumulation of potassium, rather than application of potash fertilizer, the soil will soon be in a potential depletion of potassium in the state. Thus, in Fertilization NPK fertilizer to improve soil nutrient content on the most obvious effect of a single P fertilizer or potash can not effectively improve soil nutrient content, and even lead to lack of soil nutrients. (2) Different fertilizer formulas Evodia forest soil anic matter content and the changes in PH value Soil anic matter is from the tuyuhun life of the soil, including soil microbes and soil animals and their secretions, as well as plant residues in soil and plant secretions. Soil anic matter is one of the key indicators of high and low soil fertility, due to regional climatic conditions, vegetation types and tillage management is different from the plants into the soil residues of the volume and chemical position are very different, which is the main source of soil nutrients , and can improve soil physical properties, which have the biological activity and plexation, helping to eliminate the pollution of the soil and promote growth of trees and improving the ability of soil protection and buffer properties of fat plays an import