“耕农抗旱宝”在青海省农业生产中的应用效果研究——以湟水河乐都为例

Study on the Application Effect of “Geng-nong Drought-Resistant Bao” in Agricultural Production of Qinghai Province:A Case Study of Ledu District of Huangshui River

为研究“耕农抗旱宝”在青海省农业生产中的应用效果,以小麦、油菜和马铃薯为供试材料,分别设置“耕农抗旱宝”施用量22.5 kg/hm^2(A1)、“耕农抗旱宝”施用量30kg/hm^2(A2)和不施用“耕农抗旱宝”(CK)共3个处理,在青海省湟水河乐都[CD1]海东农业生态试验站开展田间试验。对比研究了其对土壤容重、耕作层土壤含水率、不同生育期形态特征、产量等的影响。研究表明:“耕农抗旱宝”对土壤容重、水分、作物生长特性、产量构成因素及产量有一定有利影响:可降低土壤容重,改善土壤孔隙结构;能提高土壤保水、储水能力;最佳保水能力下的施用量因作物不同而不同;小麦、马铃薯株高(株幅)在22.5 kg/hm^2时最高,油菜株高在30 kg/hm^2时最高,径粗在不施用“耕农抗旱宝”时最大;小麦和油菜产量在30 kg/hm^2时最高,分别为7 761.08、3 763.88 kg/hm^2,较对照组增产分别为20.6%、11.4%;马铃薯产量在22.5 kg/hm^2时最高,为52 859.78 kg/hm^2,较对照组增产9.3%,综合考虑,适量的“耕农抗旱宝”可在青海农业中推广应用。

In order to study the application effect of“Geng-nong Drought-Resistant Bao”in agricultural production in Qinghai Province,with wheat,rape and potato as test material,three treatments,including 22.5 kg/hm^2(A1),30 kg/hm^2(A2)and 0 kg/hm^2(CK),were set to study its effects on bulk density,soil moisture content in tillage layer,morphological characteristics of different growth stages and yield.The field test was carried out in Haidong Agroecology Test Station of Huangshui River in Qinghai Province.The results show that:“Geng-nong Drought-Resistant Bao”has certain beneficial effects on bulk density,water content,crop growth characteristics,yield components and yield;it can reduce soil bulk density and improve soil pore structure;it can improve soil water retention and water storage capacity;the application amount under the optimal water retention capacity varies with different crops;the plant height of wheat and potato is the highest when the application amount is 22.5 kg/hm^2,and the plant height of rape is the highest when the application amount is 30 kg/hm^2;the diameter of rape plant is the largest when no“Geng-nong Drought-Resistant Bao”is applied;when the application amount is 30 kg/hm^2,the highest yields of wheat and rape are 7 761.08 and 3 763.88 kg/hm^2,which is increased by 20.6%and 11.4%than that of control group;when the.application rates is 30 kg/hm^2,the highest yield of potato is 52 859.78 kg/hm^2,which is increased by 9.3%than that of control group.Considering comprehensively,the appropriate amount of“Geng-nong Drought-Resistant Bao”can be popularized and applied in Qinghai agriculture.