Pengaruh Pupuk Organik Hayati Yang Mengandung Mikroba Bermanfaat Terhadap Pertumbuhan Dan Hasil Panen Tanaman Semangka Serta Sifat Biokimia Tanahnya Pada Percobaan Lapangan Di Malinau-Kalimantan Timur

Abstract

In fi eld experiments during dry season 2010, the effects of biofertilization on growth of fruit yield Semangka (Citrullus lanatus) and of biochemical properties of soil were investigated. The experimental design was Randomly Block Design (RBD) with four treatments and fi ve replications. The treatments were biofertilizer only; chemical fertilizer only; biofertilizer plus a half dose of chemical fertilizer, and control. The application of biofertilizer which was a mixture of Pseudomonas sp., Bacillus sp. and Streptomyces sp and chemical fertilizers (only 50% of the recommended dosage of NPK) increased vegetative growth (plant height, number of branches) compared to chemical fertilizer treatments only. An addition of biofertilizer with the chemical fertilizer also increased the biochemical properties as well as the yield of C. lanatus compared to other treatments. The possible role of biofertilizer on improving soil enzymatic activities, vegetative growths and yield will be discussed more detail in the paper.

Rhizobakteria Formulation Tests Phospat Indigenous Peanut to Increase P Inquiry

“…According to the Rev. [9], the difference in population of bacteria caused by the growing capabilities of each type of bacteria. The bacteria have the ability to grow and adapt in accordance with the conditions of its growth, as well as being able to utilize carbon as source of nutrients contained in the BPF formula liquid biofertilizer.…”

“…The influence of pH against the growth of bacteria related to the activity of enzymes to catalyze reactions that are related to the growth of bacteria. If the pH is not optimum bacterial growth will result in a disruption of bacterial growth [9]. Based on the optimum pH for the growth of bacteria, the data shows that there is an optimum pH range at liquid biofertilizer stored at room temperature with liquid waste know the formula to save 0 Sunday that range 6.12-6,79, 5.35-5.68 4 weeks and 8 weeks 4.34-5.01.…”

The Effect of Bio-Fertilizers on Plant Growth and Growth Rate of Grafted Avocado (Persea americana Mill.)

“…Cultivars and rootstocks of avocado influenced nutrients absorption for plant growth [17]. Beyonic StarTmik also increased plant height of water melon (Citrullus lanatus) [10]. Mega Rhizo or Beyonic StarTmik increased plant growth, yield, and decreased applying in-organic fertilizer on maize [11].…”

“…Avocado plants require basic fertilizers, such as manure, inorganic fertilizers (urea, TSP, KCl), also micro-nutrients. Application of in-organic fertilizer could cause a pollution of soil, water, expensive cost, also do not have micro-nutrient; whereas application of bio-fertilizer could increase activated respiration and enzymatic of plant roots, supply nutrients and plant hormones for plant growth [7], [8], [9], [10], also substitute some amount of in-organic and decrease production cost [11], [12].…”

Efektivitas Pupuk Hayati Unggulan Nasional Terhadap Pertumbuhan dan Hasil Bawang Merah

“…Hasil Penelitian lain mengungkapkan bahwa pemberian pupuk hayati campuran dari Pseudomonas sp., Bacillus sp., dan Streptomyces sp. dengan 50% pupuk NPK rekomendasi selain dapat meningkatkan pertumbuhan vegetatif tanaman, juga meningkatkan sifat biokimia tanah dan hasil Citrullus lanatus dibandingkan dengan perlakuan lainnya (Antonius & Agustiyani 2011). Oleh karena itu dalam rangka mendapatkan teknologi pupuk hayati unggulan nasional (PHUN) yang efektif dan juga selektif terhadap komoditas dan lingkungan budidaya tanaman diperlukan penelitian uji efektivitas beberapa PHUN yang telah dihasilkan oleh lembaga penelitian untuk dapat direkomendasikan oleh pemerintah.…”