Respon dua genotip kentang (Solanum tuberosum L.) dengan pemberian tiga sumber pupuk nitrogen di dataran medium

AGROMIX Pub Date : 2021-09-11 DOI:10.35891/agx.v12i2.2606

Anggi Handa Suwandi, A. Rosyidah, Anis Sholihah

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Abstract

This study aimed to evaluate the growth and yield of two potato genotypes (S) due to three sources of nitrogen (G) fertilizer on medium plains. The study was arranged in a two-factor, randomized block design factorial and was repeated three times. The first factor is the source of N fertilizer, consisting of three levels: S1 = ZA ((NH4)2SO4), S2 = urea (CO(NH2)2), and S3 = ammonium nitrate (NH4NO3). The second factor was potato genotype, consisting of two levels G1 = MS 13 genotype and G2 = At 4 genotype. The data obtained were analyzed by F test at 5% level (ANOVA) to determine the effect of treatment and further LSD test was carried out to determine differences between treatments, and multiple regression analysis to determine the most influential factors on potato tuber starch content. The results showed that the highest starch content was obtained by the At 4 genotype of 18,50% and was suitable for medium plains. While the starch content of the MS 13 genotype was 17,53%. For fertilizing nitrogen sources, it is recommended to use ammonium nitrate, because it obtains the highest yield of 27,30 tons ha-1 from other nitrogen fertilizer sources.

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在中平面上施用三种氮肥对两种马铃薯基因型（Solanum tuberosum L.）的响应

本研究旨在评估两种马铃薯基因型（S）在三种氮源（G）肥料作用下在中等平原上的生长和产量。该研究采用双因素随机区组设计析因，重复三次。第一个因素是氮肥的来源，由三个水平组成：S1=ZA（（NH4）2SO4），S2=尿素（CO（NH2）2），S3=硝酸铵（NH4NO3）。第二个因素是马铃薯基因型，由G1=MS13基因型和G2=At4基因型两个水平组成。通过5%水平的F检验（ANOVA）对获得的数据进行分析，以确定处理的效果，并进行进一步的LSD检验以确定处理之间的差异，并进行多元回归分析以确定对马铃薯块茎淀粉含量的最大影响因素。结果表明，At 4基因型的淀粉含量最高，为18,50%，适用于中等平原。而MS13基因型的淀粉含量为17.53%。对于施肥氮源，建议使用硝酸铵，因为它从其他氮肥源获得最高产量27,30吨ha-1。

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AGROMIX

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审稿时长

10 weeks