Pengaruh Jarak Tanam dan Pupuk N,P,K terhadap Pertumbuhan dan Hasi Garut (Maranta arundinacea L.)

Abstract

<p>Arrowroot able to be alternative food because it has high enough carbohydrate content. The increase of productivity of arrowroot can be reached by using plant spacing and fertilization. This study aims to determine the effect of plant spacing and fertilization, also their interaction on growth and yield of arrowroot (Maranta arundinacea L.). This research was held from March to November 2016 in the experimental land, Faculty of Agriculture, Sebelas Maret University. This research arranged in Completely Randomized Block Design (CRBD) consisted of 2 factors; dosage of N,P,K fertilizer (with 3 levels) and plant spacing (with 2 levels). Each treatment was repeated 4 times. The data obtained analyzed with analysis of variance and followed with Duncan Multiple Range Test at 5% level if any significant influences. The results showed that the interaction between plant spacing of 30x40 cm and urea, Sp36 and KCl 300Kg-1ha significantly increased the number of tillers and diameter of arrowroot respectively. The use of plant spacing 30x40 cm tends to increase growth and better yield. The use of 300 Kg-1ha Urea, SP36 and KCl fertilizer significantly increased plant height, while 150 Kg/ha urea, SP36 and KCl fertilizer significantly increased the number of tuber crops.</p>

Response of growth and production of potato plants to application of NPK fertilizer

“…Plants that are given excessive doses of fertilizer, no longer encourage growth to be more active but instead begin to suppress the rate of plant growth [13]. This is in line with the results of research on NPK on potato tuber diameter, namely increasing the dose of fertilizer reduces tuber diameter of potato plants and gives yields at 300 kg ha -1 [14].…”

“…The tuber diameter is formed from the accumulation of assimilating yields stored in tubers. This situation causes the tubers to experience an increase in tuber size and weight thus affecting the quality of tubers [14].…”

Effect of chitosan application time on seedlings of various rambutan varieties (Nephelium lappaceum L.)

“…According to the analysis of variance, the variety and time of chitosan application and their interaction gave no significant results on the number of rambutan leaves. The relatively same number of leaves is because there is no competition in utilizing sunlight, nutrients, and water [11]. The results of measuring the height gradient of rambutan can be seen in figure 1 below.…”

Pengaruh Biochar Sekam Padi Dan Kompos Terhadap C-Organik, N-Total, C/N Tanah, Serapan N, Dan Pertumbuhan Tanaman Jagung Di Ultisol

“…Hal ini karena tidak adanya persaingan antar atanaman terhadap cahaya matahari. Hal ini sejalan oleh pernyataan Anggun et al (2017) bahwa tanaman tidak bersaing dalam pemanfaatan cahaya matahari sehingga cahaya yang dibutuhkan oleh tanaman masih tersedia dan menghasilkan jumlah daun yang sama. Aplikasi kombinasi biochar sekam padi dan kompos menghasilkan peningkatan jumlah daun setiap minggunya.…”