?url_ver=Z39.88-2004&rft_id=1614071034&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adc&rft.title=RANCANG+BANGUN+ALAT+UKUR+KELENGASAN+TANAH+MELALUI%0D%0AVARIASI+BULK+DENSITY+DAN+SUHU+BERBASIS+JARINGAN+SYARAF%0D%0ATIRUAN&rft.creator=RITA+%2C+LAILASARI&rft.subject=630+Pertanian+dan+teknologi+yang+berkaitan&rft.description=Sebagian+besar+perhatian+yang+selama+ini+dicurahkan+dalam+pembangunan%0D%0Aadalah+pengembangan+di+bidang+sektor+pertanian.+Perubahan+wajah+pertanian+di%0D%0AIndonesia+dari+pekerjaan+yang+serba+manual+kini+menjadi+lebih+mekanis.+Peran%0D%0Astrategis+mekanisasi+pertanian+memberikan+kontribusi+untuk+menurunkan+biaya%0D%0Aproduksi%2C+meningkatkan+hasil+dan+menurunkan+susut+hasil%2C+namun+implementasi%0D%0Amekanisasi+pertanian+menyebabkan+terjadinya+pemadatan+tanah.+Pemadatan+tanah%0D%0Amengakibatkan+penurunan+nilai+kadar+lengas+pada+tanah.+Kadar+lengas%0D%0Amerupakan+salah+satu+faktor+penting+pada+keberhasilan+penanaman+karena%0D%0Adigunakan+untuk+menentukan+waktu+irigasi+suatu+tanaman.+Teknologi%0D%0Ainstrumentasi+pengukuran+kelengasan+tanah+saat+ini+masih+memiliki+kekurangan%0D%0Asehingga+diperlukan+penyempurnaan+untuk+mengatasinya+yaitu+berupa%0D%0Apengintegrasian+model+matematika+ke+dalam+mikrokontroler+yang+diperoleh%0D%0Amenggunakan+prinsip+Jaringan+Syaraf+Tiruan+(JST).+Dengan+demikian%2C+nilai+hasil%0D%0Apengaplikasian+dapat+langsung+diketahui.%0D%0ATujuan+umum+dari+penelitian+ini+adalah+merancang+alat+ukur+kelengasan%0D%0Atanah+berdasarkan+Jaringan+Syaraf+Tiruan+dengan+tiga+parameter+yaitu%2C+bulk%0D%0Adensity%2C+suhu+tanah+dan+resistensi.+Tujuan+khusus+dari+penelitian+ini+yaitu+untuk%0D%0Amendapatkan+model+matematika+pembacaan+nilai+sensor+kelengasan+tanah%0D%0Aberdasarkan+Jaringan+Syaraf+Tiruan+(JST).+Penelitian+ini+dilakukan+pada+bulan%0D%0AOktober+sampai+Desember+2021+di+Laboratorium+Sumber+Daya+Air+dan+Lahan%2C%0D%0AJurusan+Teknik+Pertanian%2C+Fakultas+Pertanian%2C+Universitas+Lampung.%0D%0ABerdasarkan+penelitian+yang+telah+dilakukan+telah+dihasilkan+model%0D%0Amatematika+yang+mendapatkan+nilai+RMSE+sebesar+2%2C3487+dan+koefisien%0D%0Adeterminasi+(R2%0D%0A)0%2C960+dengan+fungsi+aktivasi+yang+memiliki+hasil+terbaik+ialah%0D%0Apurelin-tansig-tansig.+Alat+yang+telah+di+uji+menghasilkan+nilai+error+yang+kecil%0D%0Ayaitu+dengan+RRMSE+sebesar+7%2C86%25+dan+RMSE+4%2C3096.%0D%0AKata+kunci+%3A+Lengas+tanah%2C+kepadatan+tanah%2C+jaringan+syaraf+tiruan%2C+rancangan%0D%0Aalat.%0D%0A%0D%0AMost+of+the+attention+that+has+been+devoted+to+development+has+been+in+the%0D%0Aagricultural+sector.+The+change+in+the+face+of+agriculture+in+Indonesia+from%0D%0Amanual+work+to+now+more+mechanized.+The+strategic+role+of+agricultural%0D%0Amechanization+contributes+to+lowering+production+costs%2C+increasing+yields+and%0D%0Areducing+yield+losses%2C+but+the+implementation+of+agricultural+mechanization+causes%0D%0Asoil+compaction.+Soil+compaction+results+in+a+decrease+in+the+value+of+the+moisture%0D%0Acontent+in+the+soil.+Moisture+content+is+an+important+factor+in+the+success+of%0D%0Aplanting+because+it+is+used+to+determine+the+irrigation+time+of+a+plant.+Current%0D%0Ainstrumentation+technology+for+measuring+soil+moisture+still+has+deficiencies%2C+so%0D%0Aimprovements+are+needed+to+overcome+them%2C+namely+in+the+form+of+integrating%0D%0Amathematical+models+into+microcontrollers+obtained+using+the+principles+of%0D%0AArtificial+Neural+Networks+(ANN).+Thus%2C+the+value+of+the+application+results+can%0D%0Abe+immediately+known.%0D%0AThe+general+objective+of+this+study+is+to+design+a+soil+moisture+measuring%0D%0Ainstrument+based+on+an+Artificial+Neural+Network+with+three+parameters%2C+namely%0D%0Abulk+density%2C+soil+temperature+and+resistance.+The+specific+objective+of+this+study%0D%0Ais+to+obtain+a+mathematical+model+for+reading+soil+moisture+sensor+values+based+on%0D%0Aan+Artificial+Neural+Network+(ANN).+This+research+was+conducted+from+October%0D%0Ato+December+2021+at+the+Water+and+Land+Resources+Laboratory%2C+Department+of%0D%0AAgricultural+Engineering%2C+Faculty+of+Agriculture%2C+University+of+Lampung.%0D%0ABased+on+the+research+that+has+been+done%2C+a+mathematical+model+has+been%0D%0Aproduced+which+has+an+RMSE+value+of+2.3487+and+a+coefficient+of+determination%0D%0A(R2%0D%0A)+0.960+with+the+activation+function+which+has+the+best+result+is+purelin-tansigtansig.+The+tool+that+has+been+tested+produces+a+small+error+value+with+an+RRMSE%0D%0Aof+7.86%25+and+RMSE+of+4.3096.%0D%0AKeywords+%3A+Soil+moisture%2C+bulk+density%2C+artificial+neural+networks%2C+tool+design.&rft.publisher=FAKULTAS+PERTANIAN&rft.date=2023-04-12&rft.type=Skripsi&rft.type=NonPeerReviewed&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F72756%2F1%2FABSTRAK.pdf&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F72756%2F2%2FSKRIPSI%2520FULL.pdf&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F72756%2F3%2FSKRIPSI%2520TANPA%2520BAB%2520PEMBAHASAN.pdf&rft.identifier=++RITA+%2C+LAILASARI++(2023)+RANCANG+BANGUN+A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