?url_ver=Z39.88-2004&rft_id=1414071031&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adc&rft.title=PENGARUH+DEFISIT+EVAPOTRANSPIRASI+PADA+FASE+VEGETATIF+TERHADAP+PERTUMBUHAN+DAN+EFISIENSI+PENGGUNAAN+AIR+TANAMAN+KEDELAI+(Glycine+max+%5BL%5D+Merr.&rft.creator=DWANDA+ADI+KUMARA%2C+1414071031&rft.subject=Pertanian+(+Umum+)&rft.subject=Budidaya+tanaman&rft.description=Produksi+kedelai+nasional+cenderung+mengalami+penurunan+dan+tidak+mampu+mencapai+target.+Salah+satu+upaya+yang+dilakukan+untuk+meningkatkan+produksi+kedelai+nasional+adalah+melakukan+perluasan+areal+dan+pengelolaan+lahan.+Menanam+di+lahan+kering%2C+air+yang+tersedia+bagi+tanaman+sangat+tergantung+pada+tingkat+curah+hujan+sehingga+tingkat+kesediaan+air+sangat+terbatas.+Untuk+menanggulangi+hal+tersebut%2C+maka+diperlukan+suatu+teknik+budidaya+tanaman+yang+efisien+dalam+penggunaan+air.+Kekurangan+air+pada+setiap+fase+pertumbuhan+berpengaruh+terhadap+penurunan+hasil.+Akibat+kekeringan+yang+terjadi+pada+periode+pertumbuhan+aktif+dapat+menghambat+pertumbuhan+daun+dan+meluruhkan+daun-daun+dan+cabang-cabang+bawah.+Maka+penelitian+ini+perlu+dilakukan+adalah+untuk+mengetahui+pengaruh+defisit+evapotranspirasi+pada+fase+vegetatif+terhadap+pertumbuhan+dan+efisiensi+penggunaan+air+tanaman+kedelai+(Glycine+max+%5BL%5D+Merr.).%0D%0A%0D%0ARancangan+yang+digunakan+dalam+penelitian+ini+adalah+Rancangan+Acak+Lengkap+(RAL)++dengan+perlakuan+DE1+(1%2C0+x+ETc)%2C+DE2+(0%2C8+x+ETc)%2C+DE3+(0%2C6+x+ETc)%2C+DE4+(0%2C4+x+ETc)%2C+DE5+(0%2C2+x+ETc)%2C++dengan+ulangan+sebanyak+4+kali+sehingga+jumlah+satuan+percobaan+adalah+berjumlah+20.+Pengukuran+evapotranspirasi+acuan+pada+percobaan+adalah+DE1+yang+diasumsikan+sama+dengan+ETc.++Pengukuran+dilakukan+dengan+cara+mengetahui+jumlah+kadar+air+tanah+(KAT)+melalui+metode+Gravimetrik+yaitu+metode+penimbangan.+Penimbangan+dilakukan+setiap+hari+pada+pagi+hari.%0D%0A%0D%0AHasil+dari+penelitian+ini+adalah+dapat+diketahui+berdasarkan+parameter+pengukuran++seperti+tinggi+tanaman%2C+jumlah+daun%2C+jumlah+bunga%2C+dan+jumlah+polong.+Perlakuan+defisit+evapotranspirasi+fase+vegetatif++pada+tanaman+kedelai+mulai+mengalami+cekaman+pada+minggu+ke-III+sampai+dengan+minggu+ke-VII+pada+perlakuan+DE2+(0%2C8+x+ETc+).+Sedangkan+tingkat+efisiensi+penggunaan+air+tanaman+kedelai+tertinggi+yaitu+pada+perlakuan+DE1+(1%2C0+x+ETc)+dengan+nilai+sebesar+0%2C623.%0D%0A%0D%0AKata+kunci+%3A+Defisit+evapotranspirasi%2C+kedelai%2C+irigasi%0D%0A%0D%0ANational+soybean+production+tends+to+decline+and+is+unable+to+reach+the+target.+One+of+the+efforts+made+to+increase+national+soybean+production+is+to+expand+the+area+and+manage+land.+Planting+in+dry+land%2C+the+water+available+to+plants+is+very+dependent+on+the+level+of+rainfall+so+that+the+level+of+water+availability+is+very+limited.+To+overcome+this%2C+it+is+necessary+to+use+an+efficient+cultivation+technique+for+water+use.+Water+shortages+in+each+growth+phase+affect+the+decrease+in+yield.+Due+to+the+dryness+that+occurs+in+the+period+of+active+growth+can+inhibit+the+growth+of+leaves+and+shed+leaves+and+lower+branches.+So+this+research+needs+to+be+done+is+to+determine+the+effect+of+deficit+evapotranspiration+in+the+vegetative+phase+on+the+growth+and+efficiency+of+soybean+plant+water+use+(Glycine+max+%5BL%5D+Merr.).%0D%0A%0D%0AThe+design+used+in+this+study+is+a+Completely+Randomized+Design+(CRD)+with+DE1+treatment+(1.0+x+ETc)%2C+DE2+(0.8+x+ETc)%2C+DE3+(0.6+x+ETc)%2C+DE4+(0.4+x+ETc)+%2C+DE5+(0.2+x+ETc)%2C+with+a+repeat+of+4+times+so+that+the+number+of+experimental+units+is+20.+The+measurement+of+reference+evapotranspiration+in+the+experiment+is+DE1+which+is+assumed+to+be+the+same+as+ETc.+Measurement+is+done+by+knowing+the+amount+of+groundwater+content+(KAT)+through+the+Gravimetric+method%2C+namely+the+weighing+method.+Weighing+is+done+every+day+in+the+morning.%0D%0A%0D%0AThe+results+of+this+study+can+be+known+based+on+measurement+parameters+such+as+plant+height%2C+number+of+leaves%2C+number+of+flowers%2C+and+number+of+pods.+Treatment+of+deficits+of+vegetative+phase+evapotranspiration+in+soybean+plants+began+to+experience+stress+in+the+third+week+to+the+seventh+week+of+DE2+treatment+(0.8+x+ETc).+While+the+highest+level+of+water+use+efficiency+of+soybean+plants+is+DE1+treatment+(1.0+x+ETc)+with+a+value+of+0.623.%0D%0A%0D%0AKeywords+%3A+Deficit+evapotranspiration%2C+soybean%2C+irrigation%0D%0A&rft.publisher=FAKULTAS+PERTANIAN&rft.date=2018-09-18&rft.type=Skripsi&rft.type=NonPeerReviewed&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F37203%2F1%2FABSTRAK.pdf&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F37203%2F2%2FSKRIPSI%2520FULL.pdf&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F37203%2F3%2FSKRIPSI%2520TANPA%2520BAB%2520PEMBAHASAN.pdf&rft.identifier=++DWANDA+ADI+KUMARA%2C+1414071031++(2018)+PENGARUH+DEFISIT+EVAPOTRANSPIRASI+PADA+FASE+VEGETATIF+TERHADAP+PERTUMBUHAN+DAN+EFISIENSI+PENGGUNAAN+AIR+TANAMAN+KEDELAI+(Glycine+max+%5BL%5D+Merr.++FAKULTAS+PERTANIAN%2C+UNIVERSITAS+LAMPUNG.+++++&rft.relation=http%3A%2F%2Fdigilib.unila.ac.id%2F37203%2F