DONG Wen-jun,TANG Ao,ZHANG Jun,et al.Effects of Water-Soluble Fertilizer that Block Salt and Alkali on Rice Yield and Quality in Soda Saline Alkali Soil of Songnen Plain[J].HEILONGJIANG AGRICULTURAL SCIENCES,2022,(08):14-18.[doi:10.11942/j.issn1002-2767.2022.08.0014]
克盐碱水溶肥对松嫩平原苏打盐碱地水稻产量和品质的影响
- Title:
- Effects of Water-Soluble Fertilizer that Block Salt and Alkali on Rice Yield and Quality in Soda Saline Alkali Soil of Songnen Plain
- Keywords:
- Songnen Plain; soda saline alkali soil; water-soluble fertilizer that block salt and alkali; rice
- 文献标志码:
- A
- 摘要:
- 盐碱地水稻种植是松嫩平原苏打盐碱土利用的一种主要方式。为明确克盐碱水溶肥缓解水稻盐碱危害的效果,在秸秆还田下,分别于水稻移栽前和分蘖期施用克盐碱水溶肥,调查其对东北松嫩平原苏打盐碱地水稻产量和品质的影响。结果表明,与常规对照相比,在分蘖期施用克盐碱水溶肥的水体pH和EC分别显著降低3.80%和4.93%,土壤EC显著降低11.65%,在灌浆期施用克盐碱水溶肥的水体pH、EC和土壤pH、EC变化不大;施用克盐碱水溶肥的水稻籽粒产量较常规对照显著增加21.94%,有效穗数显著增加26.51%,结实率增加2.51%,每穗粒数降低8.18%,千粒重显著降低3.68%;施用克盐碱水溶肥的水稻糙米率、精米率和整精米率较常规对照均呈下降趋势,垩白粒率和垩白度分别显著降低33.49%和54.95%,食味值略有增加,直链淀粉含量和蛋白质含量均有所降低;施用克盐碱水溶肥的纯收益为813.86元·hm-2。综上所述,施用克盐碱水溶肥可以显著降低生育前期水体的pH和EC以及土壤EC,显著提高水稻产量,获得较好的经济效益,有利于提高稻米的外观品质和蒸煮食味品质。
- Abstract:
- Planting rice in saline alkali soil is a main way to use soda saline alkali soil in Songnen Plain.In order to clarify the effect of water-soluble fertilizer that block salt and alkali on alleviating the harm of rice saline alkali.In this study,under the condition of straw returning,a field experiment was performed to investigate the impacts of water-soluble fertilizer that block salt and alkali on rice yield and quality in soda saline alkali land of Songnen Plain in Northeast China before rice transplanting and at tillering stage.The results showed that,compared with the conventional control,the application of water-soluble fertilizer that block salt and alkali significantly decreased the pH and EC of water by 3.80% and 4.93%,and significantly decreased the EC of soil by 11.65%,respectively,at the tillering stage.During the filling stage,the pH and EC of water and pH and EC of soil changed little.The rice grain yield significantly increased by 21.94%,the number of effective panicles significantly increased by 26.51%,the seed setting rate increased by 2.51%,the number of grains per panicle decreased by 8.18%,and the 1 000 grain weight significantly decreased by 3.68%.The brown rice rate,milled rice rate and head rice rate showed a downward trend,the chalky grain rate and chalkiness significantly decreased by 33.49% and 54.95%,respectively.The taste value increased slightly,the amylose content and protein content decreased,and the net income was 813.86 yuan·ha-1.In conclusion,the application of water-soluble fertilizer that block salt and alkali can significantly reduce the pH and EC of water and the EC of soil in the early growth stage,significantly improve rice yield,and obtain better economic benefits,which is beneficial to improve the appearance quality and cooking and eating quality of rice.
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备注/Memo
收稿日期:2022-05-20