Rekomendasi Pemupukan Padi Sawah (Oryza sativa L.) Spesifik Lokasi di Kecamatan Malinau - Kabupaten Malinau

The area of paddy fields in Malinau Kota District is around 463 ha or 10.29 percent of the productive paddy in Malinau Regency which reaches 4,500 ha. The productivity of rice in the area is still low, which is around 3-4 ton ha-1, its caused by the use of fertilizers that are not yet suitable for plant growth requirement. Therefore, in order to improve rice productivity, it is necessary to do soil analysis to formulate spesific location fertilizer recommendations based on soil nutrient status. The assessment was carried out in Malinau District, Malinau Regency, on September-November 2017. The purpose of the asseement was to develop recommendations for fertilizing specific location lowland rice based on soil nutrient status. The assessment method is to take composite soil samples from several representative locations, then analyze in the laboratory, and the results of the analysis are used to formulate recommendations for specific location lowland rice fertilization. The results of soil analysis showed that soil pH was acid, organic C-content was low, N-tot was low, P was medium and K was medium. Recommendations of N fertilization with Urea as the basic fertilizer 50-100 kg ha-1 and subsequent N fertilization based on leaf color chart (LCC), P fertilization with SP-36 as much as 100 kg ha-1, and K fertilization with KCl as much as 50 kg ha-1.

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Integrated Nutrient Management of an Acid Paddy Soil in Karang Tanjung Village, Padang Ratu, Central Lampung

Journal of Tropical Soils ◽

10.5400/jts.2017.v22i2.97-106 ◽

2017 ◽

Vol 22 (2) ◽

pp. 97-106

Author(s):

Antonius Kasno ◽

Irawan Irawan ◽

Husnain Husnain ◽

Sri Rochayati

Keyword(s):

Organic Matter ◽

Nutrient Management ◽

Soil Nutrient ◽

Nutrient Status ◽

Inorganic Fertilizer ◽

Soil Nutrient Status ◽

Inorganic Fertilizers ◽

Total N ◽

Organic C ◽

Set Up

Balanced fertilization is the key factor to improve the efficiency and effectiveness of fertilization.The dosage of inorganic fertilizers applied can be determined based on the nutrient status of P, K and rice productivity. The research aims to improve balance fertilization that combines inorganic fertilizers, which is set up based on soil nutrient status, and organic fertilizers. The research was conducted in Karang Tanjung Village, Padang Ratu District, Central Lampung, in the dry season of 2009 until 2012. An experimental plot of one hectare was set up in the farmer’s paddy fields. Generally, the plot for every treatment was owned by two or more farmers. The treatments consisted of the dose of fertilizer applications for lowland rice, namely (1) dose of fertilizers based on farmer practice, (2) dose of fertilizers proposed by Petrokimia, (3) 75% of fertilizer dose that was set up based on soil analysis plus straw compost, and (4) 75% of inorganic fertilizer combined with manure and biofertilizer. At the fourth growing season, each plot was applied with 100% inorganic fertilizer (NPK fertilizer). The results showed that the limiting factor of the soil used in the current study is the content of organic-C, N, K, and CEC. The compost of rice straw used as organic matter in the current study contains higher organic-C and total-N in comparison to manure. Organic matter application in the form of straw compost or manure can reduce 25% of NPK application, while the production of rice remains high. Fertilization on paddy soils based on soil nutrient status can improve fertilization efficiency. Rice production in the treatment of 100% NPK is similar to that in the fertilization treatments based on farmer practice and Petrokima rate. Keywords: Nutrient management, acid soil, fertilization efficiency

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BORON ON PRODUCTIVITY AND NUTRIENT STATUS OF RICE (ORYZA SATIVA L.) IN KOLE LANDS , KERALA, INDIA

PLANT ARCHIVES ◽

10.51470/plantarchives.2021.v21.no1.103 ◽

2021 ◽

Vol 21 (No 1) ◽

Author(s):

A Latha ◽

Asha V Pillai

Keyword(s):

Oryza Sativa L ◽

Soil Nutrient ◽

Nutrient Status ◽

Thousand Grain Weight ◽

Soil Nutrient Status ◽

Yield Attributes ◽

Pooled Data ◽

Positive Effect ◽

Different Levels ◽

Growth Characters

An experiment was conducted in farmer’s field at different locations of kole lands to study the effect of micro nutrient Boron on yield and soil nutrient status of rice during 2012-2014. The treatments comprised of different levels of B viz; 2.5 kg Borax/ ha, 5 kg Borax/ha, 10 kg Borax/ha, 12.5 kg Borax/ha, 15 kg Borax/ha and untreated control. Observations on growth characters, yield attributes, yield and soil and plant nutrient status were recorded. The application of 15 kg borax /ha recorded the maximum number of panicles/m2 , number of grains /panicles, thousand grain weight, grain and straw yield of rice. The results of pooled data on plant and soil nutrient status revealed that application of boron had a positive effect on uptake and availability of nutrients in soil. The study concluded that the soil application of borax@ 15 kg /ha was found to be good for correcting the deficiency in B deficient areas of Kole lands.

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IDENTIFIKASI STATUS HARA TANAH PADA LAHAN KERING SEBAGAI DASAR PEMUPUKAN KEDELAI DI KECAMATAN ANDOOLO KABUPATEN KONAWE SELATAN

Jurnal Ecosolum ◽

10.20956/ecosolum.v8i2.7796 ◽

2019 ◽

Vol 8 (2) ◽

pp. 50

Author(s):

Musyadik Musyadik

Keyword(s):

Organic Matter ◽

Soil Ph ◽

Soil Nutrient ◽

Nutrient Status ◽

Soil Nutrient Status ◽

Organic C ◽

High K ◽

The Status ◽

Soil Fertility Status ◽

Neutral Conditions

Soybean is a potential type of legume plant to be developed in Andoolo District, South Konawe Regency. However, the soybeans production is still relatively low. The main problem in the low production of soybeans is the unavailability of information on soil fertility status, especially the status of organic C-nutrients, P and K. Therefore information on soil nutrient status is very necessary. The study was conducted in the village of Ataku, Andoolo District, South Konawe Regency in May to July 2018 using the Dry Soil Test Equipment (PUTK) method. There were 27 soil samples taken randomly to obtain soil nutrient status including organic matter, P, K and soil pH and recommendations for soybean fertilizer dosages in the Andoolo District. The results of this study showed that C-Organic status, P, K and pH in Andoolo District varied. Based on the results of the analysis, the recommended fertilizer dosage in Andoolo District is giving 2 tons/ha of organic matter plus 200 kg/ha of Urea fertilizer, 200 kg/ha of SP36, and 100 kg/ha of KCl for low K status, 75 kg/ha of KCl for moderate K status and 50 kg/ha of KCl for soil with high K status. For soil with a very acidic and acidic pH status, it is recommended to give 500 kg/ha of lime doses to increase the soil pH to neutral conditions.

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