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Optimal chemigation duration model based on the crop and environment effects

International Journal of Agricultural and Biological Engineering 2023年第4期16卷 41-50页

作者： Hui Wang Wenpeng Shi Wene Wang Xiaotao Hu Gang Ling Rong Wei Key Laboratory of Agricultural Soil and Water Engineering in Arid Areas Ministry of EducationNorthwest A&F UniversityYangling 712100China

Herbicides with drip irrigation(chemigation)could control the herbicides application accurately as the irrigation technology,and could reduce the harm to humans and the ***,the herbicide concentration is not consistent in the advancing process along the drip irrigation tape of different lengths,which not only influences the crop growth and results in herbicide *** this study,the crop and environmental effects of chemigation were discussed,potassium permanganate was used to replace herbicides,and a laboratory test was conducted to determine the best application *** on this result,the maize field experiment of chemigation under plastic mulch was carried out to compare the effects of maize growth index,yield and herbicide residue for determining the optimal chemigation *** result shows that there is no significant difference in the application uniformity among treatments,but the leaf area index(LAI),yield,and double-ear rate of maize under continuous application(CA)were higher than those under periodic application(PA)and no application(NA)*** month after the application,the acetochlor residue of the two modes was less than 1%,which would not cause pollution to the surrounding *** there was a significant linear regression relationship between the length of drip irrigation tape and the optimal application duration under the same acetochlor dosage.

关键词： chemigation irrigation mode maize environment

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Effect of Different irrigation Patterns on Transportation and Allocation of Carbohydrate During Grain Filling of Rice

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Agricultural Sciences in China 2005年第3期4卷 181-186页

作者： CHENHai-sheng TAOLong-xing WANGXi HUANGXiao-lin TANHui-juan CHENGShi-hua MINShao-kai StateKeyLaboratoryofRiceBiology／ChinaNationalRiceResearchInstitute Hangzhou310006P.R.China

Using intersubspecific hybrid rice Xieyou 9308 and Liangyou Peijiu as the tested materials, the effects of differentirrigation patterns on transportation and allocation of carbohydrate during grain filling stage was observed by the designwith three level of soil water content in irrigated field. The results showed that in the conventional flooding and thealternate dry-watering cultivations, the exported rate of stored carbohydrate from stem and photophate from the leaves were60 and 90 % respectively. The exported rate of carbohydrate was decreased significantly (P<0.01) in the non-floodingcultivation. There was no significant difference between the conventional flooding and dry-wet alternation treatments interm of the exported rate of carbohydrate. The filling grains were the major sinks for carbohydrate storage during grainfilling stage. Grains received nearly 50% of stored carbohydrate from leaf sheath and 80% of photophate from leaves. Atthe nonflooding condition the absorbing rates of grains were significantly decreased by 10 % from leaf sheath and 20 %from leaves photophate. Water stress leaded much decrease in absorbing ability for inferior grains, which might be one ofthe main causes for low seed-settling rate in non-flooding cultivation.

关键词： Rice Grain filling stage irrigation mode Grain Photophate

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Influence of Different irrigation models and Amounts on Jujube under Jujube-cotton intercropping

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Agricultural Science & Technology 2013年第9期14卷 1328-1331,1351页

作者：饶晓娟王治国周勃冯耀祖唐亚莉新疆农业职业技术学院新疆昌吉831100 新疆农科院土壤肥料与农业节水研究所/绿洲养分与水土资源高效利用重点实验室新疆乌鲁木齐830091 新疆农业大学草业与环境科学学院新疆乌鲁木齐830052

[Objective] The aim was to explore the differences of jujube growth by intercropping with cotton and mono-cropping and to research effects of three irrigation models and quantity on jujube. [Method] The field experiment with three factors and two levels were applied for the study in order to research the effect of all treatments with the yield, quality, bearing branch, flower, fruit diameter of jujube. [Result]With different irrigation patterns, the result of comparing the length of bearing branch was drip irrigation furrow irrigation micro spray, and the result of comparing the number of bearing branch, the bud number, the flower number, fruit diameter was the same, as follows： drip irrigation microjet irrigation furrow irrigation; the result of comparing the yield was drip irrigation furrow irrigation microjet irrigation with significant differences. With different irrigation quantities, high irrigation water quantity treatment was proved higher than low irrigation quantity treatment in every survey index. [Conclusion] The analysis indicates that drip irrigation, microjet irrigation and furrow irrigation increased the irrigation water quantity can significantly promote the growth and the yield of jujube and the effects of the three kinds of irrigation patterns are drip irrigation furrow irrigation microjet irrigation.

关键词： Jujube-cotton intercropping irrigation mode irrigation water Agronomic trait

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