Science, asked by priteesuryawanshi100, 1 month ago

Fertilizer application to pre seasonal sugarcane crop ​

Answers

Answered by angel163853
2

Explanation:

Bio fertilizer:

Application of azospirillum gives atmospheric nitrogen to the sugarcane crop. ...

Apply azospirillum 5 kg/ha, phosphobacteria 5 kg/ha and FYM 500 kg /ha mix it and apply on 30 days after planting along the furrow and irrigated it. ...

Bio fertilizer can also apply through fertigation.

Answered by quratulainannie503
2

Answer:

Sugarcane (Saccharum officinarum )

Basal application of organic manures:

1. Apply FYM at 12.5 t/ha or compost 25 t/ha or filter press mud at 37.5 t/ha before the last ploughing under gardenland conditions.

2. In wetlands this may be applied along the furrows and incorporated well.

Basal Application of Fertilizer

If soil test is not done, follow blanket recommendation of NPK @ 300:100:200 kg/ha Apply super phosphate (625 kg/ha) along the furrows and incorporate with hand hoe.

Apply 37.5 kg Zinc sulphate/ha and 100 kg Ferrous sulphate/ha to zinc and iron deficient soils.

Application of sulphur in the form of Gypsum @ 500 kg /ha to sulphur deficient soils to increase the cane yield and juice quality.

Top Dressing with Fertilizers

a. Soil application

Apply 275 kg of nitrogen and 112.5 kg of K2O/ha in three equal splits at 30, 60 and 90 days in coastal and flow irrigated belts (assured water supply areas).

In the case of lift irrigation belt, apply 225 kg of nitrogen and 112.5 kg of K2O/ha in three equal splits at 30, 60 and 90 days (water scarcity areas). For jaggery areas, apply 175 kg of nitrogen and 112.5 kg of K2O/ha in three equal splits on 30, 60 and 90 days.

Nitrogen Saving

Neem Cake Blended Urea: Apply 67.5 kg of N/ha + 27.5 kg of Neem Cake at 30 days and repeat on 60th and 90th days.

Note: Neem cake blending: Powder the required quantity of neem cake and mix it with urea thoroughly and keep it for 24 hours. Thus, 75 kg of nitrogen/ha can be saved by this method.

Azospirillum: Mix 12 packets (2400 g)/ha of Azospirillum inoculant or TNAU Biofert –1 with 25 kg of FYM and 25 kg soil and apply near the clumps on 30th day of planting. Repeat the same on 60th day with another 12 packets (2400 gm). Repeat the above on the other side of the crop row on the 90th day (for lift irrigated belt).

Band placement: Open deep furrows of 15 cm depth with hand hoes and place the fertilisers in the form of band and cover it properly.

Subsurface application: Application of 255 kg of Nitrogen in the form of urea along with potash at 15 cm depth by the side of the cane clump will result in the saving of 20 kg N/ha without any yield reduction.

Importance of Balanced Nutrition

The soil fertility has declined in many sugarcane growing areas of the state due to improper and some times, distorted fertilizer schedules adopted over the years under intensive cultivation of the crop. Hence balanced application of fertilizer based on soil test values and crop requirement is essential.

Micro nutrient fertilizers :

(a) Zinc deficient soils : Basal application of 37.5 kg/ha of zinc sulphate.

(b) Sugarcane crop with zinc deficiency symptoms: foliar spray of 0.5% zinc sulphate with 1%

urea at 15 days internal till deficiency symptoms disappear.

(a) Iron deficient soils: Basal application of 100 kg/ha of ferrous sulphate.

(b) Sugarcane with Iron deficiency symptoms: foliar spray of 1% ferrous sulphate with 1% urea at 15 days interval till deficiency symptoms disappear.

Soil application of CuSO4 @ 5 kg/ha in copper deficient soils. Alternatively foliar spray of 0.2% CuSO4 twice during early stage of crop growth.

Common Micronutrient mixture : To provide all micronutrients to sugarcane, 50 kg /ha of micronutrient mixture containing 20 kg Ferrous sulphate,10 kg Manganese sulphate, 10 kg Zinc sulphate, 5 kg of Copper sulphate, 5 kg of Borax mixed with 100 kg of well decomposed FYM, can be recommended as soil application prior to planting.

(Or) Application of TNAU MN mixture @ 50 kg/ha as EFYM for higher cane yield.

Recommended dosage of macro and micronutrients

Macronutrients

Sugarcane – plant crop (meant for sugar mills) 300:100:200 kg N, P2O5 and K2O per ha

Sugarcane – Ratoon crop (meant for sugar mills)

300 + 25% extra N : 100 : 200 kg N, P2O5 and K2O per ha

Sugarcane for jaggery manufacture (plant as well as ratoon crop) 225 : 62.5 : 112.5 kg N, P2O5 and K2O per ha.

BIOFERTILIZER FOR SUGARCANE

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