操美女空姐中国土壤与肥料2021(1)
甘胆酸是查什么的
Effect of amino acid compound fertilizer on physical and chemical properties of saline-alkali soil
ZHANG Li1,LIU Jing-hui1*,LI Hui1,LIU Yu-e2(1.College of Agronomy,Inner Mongolia Agricultural University, Hohhot Inner Mongolia010019; 2.Aquatic Management Station,Agriculture,Animal Husbandry and Science and Technology Bureau,Wuchuan County,Hohhot Inner Mongolia011700)中音
Abstract：In order to clarify the effect of amino acid compound fertilizer on improving saline-alkali land and increasing oat yield,field experiment was applied for two concutive years with four treatments:A3(2250kg/hm2),A2(1500 kg/hm2),Al(750kg/hm2)and CK(0kg/hm2)to study the effects of the four amino acid compound fertilizers on the physicochemical properties of saline-alkali soil and oat yield.The results showed that：after the application of amino acid compound fertilizer in saline-alkali land,the content of soil aggregates with diameter>0.25mm incread by0.17%〜9.08%in 0~40cm soil layer.The soil water content incread with the increa of fertilizer application,the effect was most significant at the elongation stage of oat,which was12.34%higher than CK.In0〜40cm soil layer,the soil pH decread from8.84to&03,and the total salt content decread from9.16g/kg to8.30g/kg.The contents of soil organic matter,alkaline nitrogen,available phosphorus and available potassium incread parately from12.22%to27.36%,
1.16%to9.50%,7.18%to39.66%and7.83%to35.56%.Oat grain,fresh grass and hay production incread significantly,
increasing yields from49.38%to65.16%.The application of2250kg/hm2amino acid compound fertilizer has the most obvious effect on improving the physicochemical properties of saline-alkali soil and increasing yield.自考大学语文
一辈子只爱你Key words:amino acid compound fertilizer;salinity;soil physical and chemical properties;oat
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