KAJIAN PENENTUAN NILAI KOEFISIEN TANAMAN DAN LAJU PERKOLASI SERTA PRODUKSI TANAMAN PADI VARIETAS CIHERANG PADA BEBERAPA UKURAN LUAS TANAH (Study of Determination Plant Coefficient Value and Deep Percolation Rate, and Production Ciherang Rice Variety On Se

Abstract

ABSTRACT

Planting density for a given area of ​​land will affect the productivity of rice plants. This study was aimed to determine the value of crop coefficient and rate of percolation and the production of Ciherang rice variety. Research was using non factorial completely randomized design, consisting of 4 treatments and 5 replicates, i.e  A₁= 314 cm², A₂= 490,6 cm², A₃= 706,5 cm², and A₄= 1256 cm². Thes parameters observed were soil organic matter, number of tillers plant, crop evapotranspiration, crop coefficients, percolation, plant dry weight, and weight of rice grain. The results showed that  the highest value of soil organic matter was at A₁=13,41% and the lowest was at  A₄=1,74%, the highest porosity was at  A₁=59,23% and the lowest was at A₂=56,22%, the highest number of pups of plants was at  A₁=21,6 and the lowest was at  A₄=10,6, the highest crop evapotranspiration was at A₁=2,24 mm/ day, 2,64 mm/ day, 2,47 mm/ day, 2,78 mm/ day, 2,24 mm/ day, 2,11 mm/ day, 1,75 mm/ day, 1,42 mm/hari and the lowest was at  A₄=1,87 mm/ day, 1,89 mm/ day, 1,84 mm/ day, 1,98 mm/ day, 1,69 mm/ day, 1,59 mm/ day, 1,43 mm/ day, 1,23 mm/day and the highest crop coefficients was at  A₁=1,12; 1,39; 1,54; 1,46; 1,28; 1,24; 0,99; 0,9, and the lowest was at  A₄=0,93; 1,00; 1,15; 1,04; 0,96; 0,93; 0,82; 0,82, the highest percolation was at A₁=36,6 mm/day and the lowest was at  A₄=14,6 mm/day, the highest dry weight of plants was at  A₁=151,38 g and the lowest was at  A₄=137,58 g, the highest weight of rice grains was at A₄=11,14 g and the lowest was at  A₁₌8,09 g.

Keywords: Crop coefficient, Percolation, Crop Production, Land Area, Ciherang

ABSTRAK

Kerapatan tanam untuk suatu luasan tanah tertentu akan mempengaruhi produktivitas tanaman padi. Penelitian ini bertujuan untuk menentukan nilai koefisien tanaman dan laju perkolasi serta produksi padi varietas Ciherang. Penelitian menggunakan rancangan acak lengkap non faktorial, terdiri dari 4 perlakuan dan 5 ulangan, yaitu A₁= 314 cm², A₂= 490,6 cm², A₃= 706,5 cm², dan A₄= 1256 cm². Parameter yang diamati meliputi bahan organik tanah, porositas, jumlah anakan tanaman, evapotranspirasi tanaman, koefisien tanaman, perkolasi, berat kering tanaman, berat bulir padi. Hasil penelitian menunjukkan nilai bahan organik tanah tertinggi pada A₁=13,41% dan terendah pada A₄=1,74%, porositas tertinggi pada A₁=59,23% dan terendah pada A₄=56,22%, jumlah anakan tanaman tertinggi pada A₁=21,6 dan terendah pada A₄=10,6, evapotranspirasi tanaman tertinggi pada A₁=2,24 mm/hari, 2,64 mm/hari, 2,47 mm/hari, 2,78 mm/hari, 2,24 mm/hari, 2,11 mm/hari, 1,75 mm/hari, 1,42 mm/hari dan terendah pada A₄= 1,87 mm/hari, 1,89 mm/hari, 1,84 mm/hari, 1,98 mm/hari, 1,69 mm/hari, 1,59 mm/hari, 1,43 mm/hari, 1,23 mm/hari, koefisien tanaman tertinggi pada A₁=1,12; 1,39; 1,54; 1,46; 1,28; 1,24; 0,99; 0,94 dan terendah pada A₄= 0,93; 1,00; 1,15; 1,04; 0,96; 0,93; 0,82; 0,82, perkolasi tertinggi pada A₁= 36,6 mm/hari dan terendah pada A₄=14,6 mm/hari, berat kering tanaman tertinggi pada A₁=151,38 g dan terendah pada A₄=137,58 g, dan berat bulir padi tertinggi pada A₄=11,14 g dan terendah pada A₁=8,09 g.

Kata Kunci: Koefisien Tanaman, Perkolasi, Produksi Tanaman, Luas Tanah, Ciherang