Kajian Hubungan Populasi Tanaman dengan Neraca Unsur Hara Nitrogen dan Fosfor pada Sistem Vertikultur Sawi Hijau (Brassica juncea L) dan Kangkung (Ipomea reptana)
Abstract: Analysis of
Relationship Between Crop Density and The Balancing of Both Soil Nitrogenand
Phosporus in Verticulture System of Mustard Green (Brassica juncea L) and
Kale(Ipomea reptana). The relationship between crops density and the balancing
of both soilnitrogen and phosphorus in verticulture system remained to be
important issue. A glasshouseexperiment had carried out from October 2014 to
March 2015 in order to determine (1) theoptimum population density of both
mustard greens (Brassica juncea L) and kale (Ipomeareptana), (2) soil total-N
or available-P balance, and (3) the relatiohships between plantspopulations and
soil nutrients balance. A split plot experiment under complete block designwas
applied to examine the effect of the main plot (crops type i.e. mustard green
and kale) andsub plot (crops population i.e 10, 15, 20,25, and 30 crops per
planting container 0,12 m2 insize). The results showed that no optimal crops
population density had achieved. Themaximum crops population was 30 for both
mustard greens and kale. The soil total-N balancewas negative while these was
positive for soil available-P balance of P and N negative. Alogarithmic
relationships was calculated between soil total-N balance with mustard
green,while linier patterns were significant for soil-N balance with kale and
available-P balancewith both mustard greens and kale.
Penulis: I MADE PURNA WIDANA
Kode Jurnal: jppertaniandd160395
