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Media and nutrient management for organic amaranth (Amaranthus tricolor L.) in terrace gardens
The experiment entitled "Media and nutrient management for orgamc amaranth (Amaranth us tricolor L.) in terrace gardens" was undertaken on the open terrace of the main building of the College of Agriculture, Padannakkad during January to June, 2013. The main objectives of the study were...
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| 格式: | Ph.D Thesis |
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Padannakkad
Department of Agronomy, College of Agriculture
2014
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| 主題: |
| LEADER | 06187nam a22001817a 4500 | ||
|---|---|---|---|
| 003 | OSt | ||
| 082 | |a 630 |b RAM/ME | ||
| 100 | |a Ramesh Kumar C | ||
| 245 | |a Media and nutrient management for organic amaranth (Amaranthus tricolor L.) in terrace gardens | ||
| 260 | |a Padannakkad |b Department of Agronomy, College of Agriculture |c 2014 | ||
| 300 | |a 108p. | ||
| 502 | |a MSc. | ||
| 520 | 3 | |a The experiment entitled "Media and nutrient management for orgamc amaranth (Amaranth us tricolor L.) in terrace gardens" was undertaken on the open terrace of the main building of the College of Agriculture, Padannakkad during January to June, 2013. The main objectives of the study were to assess the suitability of different growing media and standardizing organic nutrient management schedule for growing amaranth •(var. Arun) in terrace gardens and to study the residual effect of treatments with and without nutrient management schedule on a second crop of amaranth. The first experiment, laid out in completely randomized design, comprised of 26 treatments replicated thrice viz. TI (soil+sand+cow dung), T2 (soil+sand+vermicompost), T3 (soil+sand+coir pith compost), T4 (soil+rock dust+cow dung), T5 (soil+rock dust+vermicompost), T6 (soil+rock dust+coir pith compost), T7 (soil+coir pith+cow dung), Ts (soil+coir pith+vermicompost), T9 (coir pith+cow dung), TlO (coir pith+vermicompost), Tll (cocopeat+cow dung), T12 (cocopeat+vermicompost), Tn-T24 (same as TI-T12 but with organic nutrition), T25 (T1+INM as per POP recommendation ofKAU) and T26 (T1+ad hoc organic POP of KAU). The second experiment, laid in completely randomized design, comprised of 27 treatments replicated thrice viz. T 1 - T 26 (growing media of treatments T1-T26 of Experiment I after raising of first crop of amaranth and without any additional nutrients), T27 (three of the six bags maintained T25 during experiment I) + INM as per, POP recommendation of KAU. The chemical characteristics of the components used for preparing the media and the initial nutrient status of different growing media were analysed. The results of the study are as follows: In the first experiment, among media TJ (soil+sand+cow dung), resulted in greater plant height whereas with respect to manurial schedule T26 (T1+ad hoc organic POP of KAU) was superior followed by T25 (TJ+INM as per POP recommendation of KAU). The number of branches was also significantly higher ID TI (soil+sand+cow dung) whereas with respect to manurial schedule the treatment T25 (T1+INM as per POP recommendation of KAU) was superior followed by T26 (T1+ad hoc organic POP of KAU). The treatments TI (soil+sand+cow dung), T 7 (soil+coir pith+cow dung), T 9 (coir pith+cow dung) and T 11 (cocopeat+cow dung) had significantly higher moisture content. Considering the yield of all the harvests, the total yield was significantly higher in T 25 (T1+INM as per POP recommendation ofKAU), followed by TB (soil+sand+cow dung+organic nutrition), T26 (soil+sand+cow dung+ad hoc organic POP ofKAU, TI (soil+sand+cow dung) and TI5 (soil+sand+coir pith compost+organic nutrition) which were on par. The treatment T 9 (coir pith+cow dung) had significantly lowest yield. Significantly higher root weight was obtained under T 1 (soil+sand+cow dung), which was on par with T IS (soil+sand+coir pith compost+organic nutrition) and T25 (soil+sand+cow dung+INM as per POP recommendation ofKAU). The maximum water productivity was recorded in T 25 (soil+sand+cow dung+INM as per POP recommendation of KAU) which was significantly superior to all other treatments followed by T26 (soil+sand+cow dung+ad hoc organic POP of KAU) which was on par with T13 (soil+sand+cow dung+organic nutrition). The nutrient status of the media after the first experiment andnutrient uptake by the crop were also estimated. With respect to cooking quality, the treatment T26 (soil+sand+cow dung+ad hoc organic POP of KAU) secured the maximum grade for appearance, colour, flavour, texture and taste respectively and was significantly.superior to all other treatments. In the second experiment, it was observed that growth and yield of amaranth was significantly better in T27 where INM was adopted additionally as per POP of KAU. However, in all aspects it was on par with T26 (soil+sand+cow dung+ad hoc organic POP of KAU). Moreover, in general, the performance was better in treatments T n- T 24 where organic nutrition was given in the first experiment when compared to Tl-T12 which comprised the growing media alone. However, when compared to the summer season crop (first experiment), yield of amaranthus during rainy season (experiment IT) was less consequent to the higher rainfall received. The economics of cultivation worked out for the two crops revealed that T26(soil+sand+cow dung+ad hoc organic POP ofKAU) was most profitable. The high cost of certain components like vermicompost and cocopeat made the treatments that had these as components of the growing media non-profitable. Considering the growth, yield, cooking quality, residual effect of treatments on growing media and economics, T 26 viz. growing media of soil+sand+cow dung (1:1:1)+ad hoc organic POP ofKAU which consists of farm yard manure @ 25 t ha" as basal dose along with Trichoderma+PGPR mix 1 @ 2.5 kg ha" (1:1 ratio) followed by top dressing with vermicompost @ 1 t ha-! at 10 days interval is the best for growing amaranth organically on terraces and it is equally effective as the INM recommendation in the POP ofKAU. Also, the growing media combination of vermicompost or coir pith compost with soil and sand or rockdust in 1: 1 : 1 proportion can be recommended provided it is supplemented with organic nutrition (@ 50:50:50 kg ha" N: P20S: KzO as basal and 50 kg ha" N as top dressing after each harvest) on N equivalent basis using groundnut cake, rock phosphate and potassium sulphate. | |
| 650 | |a Agronomy | ||
| 700 | |a Jacob John (Guide) | ||
| 942 | |2 ddc |c TH | ||
| 999 | |c 141171 |d 141171 | ||
| 952 | |0 0 |1 0 |2 ddc |4 0 |6 630_000000000000000_RAMME |7 1 |8 REF |9 140064 |a KAUCLV |b KAUCLV |c THESES |d 2014-11-19 |o 630 RAM/ME |p 173313 |r 2014-11-19 |w 2014-11-19 |y TH | ||