腐殖酸对水稻产量和品质的影响

Effect of Humic Acid on Yield and Quality of Rice

试验以不施腐殖酸为对照,设置4个腐殖酸用量,研究了水稻产量、产量构成因素和稻米产量的变化趋势,结果表明,腐殖酸能够显著提高水稻穗粒数、千粒质量、结实率和产量,在腐殖酸用量为150 kg/hm^(2)时产量最高,但是和120 kg/hm^(2)处理的差异不显著。稻米整精米率和蛋白质含量显著提高,垩白粒率、垩白度和直链淀粉含量降低,且腐殖酸用量为120 kg/hm^(2)的稻米品质最好。

Taking no humic acid as the control,four humic acid levels are set to study the rice yield,yield components and the change trend of rice yield.The results shows that humic acid could significantly improve the number of grains per ear,1 000 grain weight,seed setting rate and yield of rice,and the yield is the highest when the humic acid level is 150 kg/hm^(2),but there is no signifi‐cant difference with the 120 kg/hm^(2)treatment.The head rice rate and protein content of rice are significantly increased,the chalky grain rate,chalkiness and amylose content were decreased,and the rice quality is the best when the amount of humic acid is 120 kg hm^(2).