本文關鍵詞：生物黑炭添加對黑土水分梯度處理玉米苗期生長的影響，由筆耕文化傳播整理發(fā)布。

生物黑炭添加對黑土水分梯度處理玉米苗期生長的影響

Influences of Biochar Application and Soil Moisture on the Growth of Maize at Seedling Stage in the Black Soil of China

[1] [2] [3] [4] [5] [6] [7] [8]

Zhang Shaoliang, Mu Linlin, Huang Jing, Liu Zhihua, Huang Yiquan,Zhao Yuan,Yin Linlin, Liang Jiahui （ College of Resources and Environment, Northeast Agricuhural University, H

東北農(nóng)業(yè)大學資源與環(huán)境學院,黑龍江哈爾濱150030

文章摘要：土壤添加生物黑炭（Biochar）能夠改變其理化性質,影響土壤水熱動態(tài)和作物生長過程,關系到作物的產(chǎn)量。玉米是黑龍江省重要的糧食作物和經(jīng)濟作物,研究生物黑炭添加對玉米苗期生長過程的影響,可為改善東北春季冷涼條件下苗期玉米生長提供理論依據(jù)和技術支撐。利用人工氣候箱,通過盆栽培養(yǎng)的方法,研究了不同生物黑炭添加條件下,水分含量梯度變化對玉米苗期生長過程的影響。結果表明：（1）土壤添加不同生物黑炭量（50g/kg和100g/kg）后,低有機質土壤和高有機質土壤均表現(xiàn)為22%的土壤含水量最有利于玉米幼苗生長,而田間持水量接近24%時有明顯的抑制作用;（2）土壤有機質和生物黑炭對玉米苗期生長的影響存在疊加現(xiàn)象,低有機質土壤中施入生物黑炭100g/kg促進玉米苗期生長效果最佳,而高有機質含量土壤中施入生物黑炭50g/kg促進玉米苗期生長效果最佳;（3）生物黑炭添加量相同時,相同土壤含水量條件下,通常高有機質土壤苗期生長相對較快。

Abstr：Biochar application changes the soil physicochemical properties, the dynamics of soil moisture and temperature ,and the crop production. Maize （Zea rnays） as the main crop of Heilongjiang province is broadly planted in black soil region （mollisols）. The influence of biochar and soil moisture on the seedling stage of maize in black soil was carried in a climate chamber with incubation method in this study, and aiming to provide the theory and technology for biochar application in cold field of Northeast China. The results showed： （ 1 ） Corn height was the highest when 22% soil moisture content was in both high and low content soil organic matter （SOM） after 50g/kg and 100g/kg biochar application ; （2） High SOM with higher bioehar application （100g/kg） and low SOM with middle level biochar application （50g/kg） were beneficial to corn seedling growth, also presented the additive effect between SOM and biochar application ; （ 3 ） Generally, high content of SOM was better to promote the seeding growth of maize under the same biochar content and soil moisture content.

文章關鍵詞：

Keyword：:Biochar Maize Seeding stage Soil water content Mollisol

課題項目：國家自然科學基金面上項目（41471228）;東北農(nóng)業(yè)大學“學術骨干”項目（15XG08）;黑龍江省普通高等學校青年學術骨干支持計劃（1254G012）

作者信息：會員可見

  本文關鍵詞：生物黑炭添加對黑土水分梯度處理玉米苗期生長的影響，，由筆耕文化傳播整理發(fā)布。